Elsevier 2023 SDG mapping
Tips
How to read a Scopus query
The Scopus queries presented in this view correspond to what is known on scopus.com as advanced search queries. Advanced searches allow a query creator to create complex and robust queries using field codes, Boolean operators, or proximity operators. We detail each of these elements below.
Field codes
A typical publication's Scopus record contains a myriad of information about it. To make this information easily usable, this information is structured and parsed apart in different fields, each containing a given type of information. For example, the title field contains a publication's title, and the publication year field informs us about when a given publication was first made public.
Field codes are there to indicate which field(s) we would like to source information from when conducting a given search. To avoid searches becoming overly long, they are usually shortened words such as ABS, which stands for "Abstract". The most commonly-used field codes used by our query-building team are:
- TITLE-ABS-KEY
Searches through the Title, Abstract, and all Keywords - TITLE-ABS
Searches only through the Title and Abstract - AUTHKEY
Searches only through the Author-defined keywords - SRCTITLE
Searches only through the journal or conference proceedings' titles
To conduct a search in a given field, the syntax is always field-code(search-term).
The field codes used can potentially have a deep impact on a search. For example, searching for "Canada" in field AFFILCOUNTRY would return publications where at least one author was affiliated with a Canadian institution, while the same search conducted in field TITLE-ABS-KEY would return articles that concern Canada.
Boolean operators
In most cases, conducting a Scopus search using a single field code or a single term is not sufficient to obtain a robust set of results. To remedy this, Scopus searches make use of boolean operators to allow for the combination of different terms or query parts. The allowed operators are
- OR
At least one of the terms must appear in the specified field, or at least one of the searches must match - AND
Both of the terms must appear in the specified field, or both searches must match - AND NOT
Only the first term must appear in the specified field, or only the first search must match
Boolean operators are applied in the order they were listed above. Therefore, KEY(mouse AND NOT cat OR dog) is interpreted as KEY((mouse) AND NOT (cat OR dog)).
Proximity operators
In some instances, a certain word is deemed relevant to a topic only if it is close to another word in the text, or certain phrasings might space out two related words defining a topic, which we could want to be tolerant to. For example, the sentence "publishing scholarly journals" is relevant to the topic of "scholarly publishing", but searching for "scholarly publishing" alone would not capture an article that used this expression.
Using proximity searches enable building queries that are tolerant to such things. Two proximity search operators are available in Scopus:
- W/n
Both terms must be within n words of each other, but not in any particular order - PRE/n
Both terms must be within n words of each other, in the order they are listed in
For example, the search TITLE-ABS-KEY("journal" W/2 "publishing") would capture the sentence from the example above, but TITLE-ABS-KEY("journal" PRE/2 "publishing") would not, since the words are not in the same order.
Introduction
The United Nations Sustainable Development Goals (SDGs) challenge the global community to build a world where no one is left behind.
Since 2018, Elsevier has generated SDG search queries to help researchers and institutions track and demonstrate progress toward the SDG targets. In the past 3 years, these queries, along with the university’s own data and evidence supporting progress and contributions to the particular SDG outside of research-based metrics, are used for the THE Impact Rankings.
Method
For 2023, the SDGs use the exact same search query and ML algorithm as the Elsevier 2022 SDG mappings, with only minor modifications to five SDGs, namely SDG 1, 4, 5, 7 and 14. In these cases, the queries were shortened by removing exclusion lists based on journal identifiers. These exclusion lists often contained thousands of items to filter out content in journals that were not core to the SDGs.
To replicate the effect of these journal exclusions, sets of keywords were used to closely mimic the effects the journal exclusions had on the SDG content, while greatly reducing the overall query size and complexity. By following this approach, we were able to limit the changes to the publications in each SDG by less than 2 percent for most SDGs, while reducing the query size by 50 percent or more.
These shortened queries also have the added benefit of running faster in Scopus, allowing further analysis of the SDG data to be done more easily. Full details of the 2022 methodology are available on Digital Commons Data.
SDG 6 – Clean Water and Sanitation
Query
Below is the full search query used for SDG 6 – Clean Water and Sanitation. We’ve broken it down by each query component. Use the + and – buttons to expand or concatenate the different bracket levels.
Subfields of science
In this section, we show how the publication set, captured by the query above, relates to the Science-Metrix classification system.As shown in Figure 1, the publications related to this publication set fall mainly under the subfields of Environmental Engineering (130,151 publications), Environmental Sciences (121,872 publications) and Chemical Engineering (53,608 publications). The total share of each subfield included under the publication set are presented upon hovering your cursor over the bars.
Journals
In this section, we show how the publication set, captured by the query above, relates to scholarly journals. Journals are sorted in terms of their total output in the field. The horizontal bars are proportional to the number of publications contributed by the journal to the current publication set. To see the proportion of the total publications in the journal contributing to this publication set or their relevance score, you can hover your cursor over the bars.The articles on this topic are published most frequently in the following journals: Science of the Total Environment (14,181 publications), Water Science and Technology (12,360 publications) and Desalination and Water Treatment (11,547 publications).
Keywords
Elsevier’s Scopus database of scientific literature, was used for the table below. The document types included in the data sets are journal articles, reviews, short surveys and conference papers, covering the period 1996–2022. We refer to these documents collectively as “publications” or “papers”.In order to help better illustrate the content of this set of publications, indicators associated with the keywords most specific to this set (according to a TF-IDF score) are presented below.
Term | Papers with this term in the publication set | Papers with this term in all of Scopus | Relevance (tf-idf) | Percentage of Scopus |
---|---|---|---|---|
sequencing batch reactor (sbr) | 2537 | 2730 | 18.951592 | 93 |
waste activated sludge (was) | 1297 | 1368 | 18.931991 | 95 |
wastewater treatment plant (wwtp) | 3249 | 3494 | 18.930375 | 93 |
water framework directive (wfd) | 1609 | 1757 | 18.905717 | 92 |
surface flow constructed wetland | 1334 | 1434 | 18.903808 | 93 |
drinking water treatment plant | 1796 | 1978 | 18.901420 | 91 |
european water framework directive | 1317 | 1420 | 18.895836 | 93 |
the water framework directive | 2300 | 2557 | 18.892330 | 90 |
irrigation water use efficiency | 1205 | 1292 | 18.886216 | 93 |
sequencing batch reactors | 1800 | 1999 | 18.886196 | 90 |
oily wastewater | 2321 | 2590 | 18.885115 | 90 |
drinking water distribution system | 1574 | 1736 | 18.884707 | 91 |
constructed wetlands (cws) | 1202 | 1291 | 18.882578 | 93 |
wetland restoration | 1894 | 2112 | 18.882167 | 90 |
wwtp effluent | 1080 | 1143 | 18.880744 | 94 |
irrigation strategies | 1237 | 1335 | 18.880705 | 93 |
dye wastewater | 2988 | 3314 | 18.880579 | 90 |
drinking water distribution | 1942 | 2171 | 18.878835 | 89 |
real wastewater | 2397 | 2683 | 18.878545 | 89 |
river restoration | 2157 | 2416 | 18.878340 | 89 |
wastewater treatment plants (wwtps) | 4307 | 4633 | 18.876176 | 93 |
contaminated wastewater | 1767 | 1975 | 18.872809 | 89 |
olive mill wastewater | 1562 | 1735 | 18.870801 | 90 |
deficit irrigation | 4375 | 4713 | 18.869381 | 93 |
water-saving irrigation | 1232 | 1338 | 18.868602 | 92 |
non-point source pollution | 3020 | 3382 | 18.860577 | 89 |
regulated deficit irrigation | 961 | 1012 | 18.853961 | 95 |
regulated deficit | 975 | 1031 | 18.851472 | 95 |
water-saving | 4115 | 4546 | 18.833495 | 91 |
waste activated sludge | 2674 | 3059 | 18.831099 | 87 |
textile wastewater | 3532 | 3973 | 18.828800 | 89 |
stream restoration | 1315 | 1472 | 18.828473 | 89 |
urban wastewater | 3193 | 3623 | 18.827773 | 88 |
subsurface flow constructed wetland | 1014 | 1095 | 18.827190 | 93 |
water savings | 1928 | 2220 | 18.823466 | 87 |
eu water framework directive | 1135 | 1252 | 18.821316 | 91 |
groundwater nitrate | 1259 | 1413 | 18.814917 | 89 |
industrial wastewater. | 2603 | 3014 | 18.809806 | 86 |
drinking water sources | 2380 | 2765 | 18.807999 | 86 |
domestic wastewater treatment | 1454 | 1663 | 18.807403 | 87 |
total maximum daily load | 1167 | 1303 | 18.806839 | 90 |
groundwater remediation | 2082 | 2422 | 18.806739 | 86 |
drinking water distribution systems | 1063 | 1171 | 18.806167 | 91 |
dyeing wastewater | 1430 | 1635 | 18.805387 | 87 |
drinking water treatment plants | 1046 | 1150 | 18.805056 | 91 |
tannery wastewater | 1147 | 1282 | 18.800769 | 89 |
municipal wastewater treatment plants | 1615 | 1869 | 18.800045 | 86 |
epanet | 1246 | 1412 | 18.795490 | 88 |
wastewater remediation | 1284 | 1461 | 18.794496 | 88 |
solar desalination | 1708 | 1989 | 18.794289 | 86 |
activated sludge model | 1115 | 1246 | 18.793923 | 89 |
sustainable water management | 1499 | 1735 | 18.790347 | 86 |
maximum daily load | 1177 | 1336 | 18.779758 | 88 |
dairy wastewater | 1166 | 1322 | 18.779550 | 88 |
pharmaceutical wastewater | 1224 | 1397 | 18.778945 | 88 |
dyeing waste | 1492 | 1739 | 18.777026 | 86 |
drinking water source | 3622 | 4177 | 18.774903 | 87 |
municipal wastewater treatment plant | 3568 | 4123 | 18.773763 | 87 |
simulated wastewater | 1700 | 2005 | 18.770515 | 85 |
the eu water framework directive | 951 | 1049 | 18.770416 | 91 |
water arsenic | 1083 | 1223 | 18.767845 | 89 |
wastewater purification | 1657 | 1955 | 18.767423 | 85 |
water quality index (wqi) | 1690 | 1996 | 18.767407 | 85 |
bottled water | 2361 | 2804 | 18.766439 | 84 |
mill wastewater | 2562 | 3042 | 18.762728 | 84 |
dye waste | 3182 | 3739 | 18.759879 | 85 |
swine wastewater | 1222 | 1410 | 18.759241 | 87 |
wine wastewater | 1231 | 1422 | 18.758814 | 87 |
water productivity | 4888 | 5484 | 18.756618 | 89 |
groundwater vulnerability | 1245 | 1442 | 18.756499 | 86 |
saline wastewater | 1020 | 1149 | 18.755428 | 89 |
wwtps | 6171 | 6669 | 18.754514 | 93 |
sustainable groundwater | 1029 | 1164 | 18.750677 | 88 |
urban wastewater treatment | 983 | 1104 | 18.749624 | 89 |
horizontal subsurface flow | 868 | 952 | 18.749246 | 91 |
surface flow constructed wetlands | 791 | 850 | 18.749054 | 93 |
industry wastewater | 2262 | 2715 | 18.747604 | 83 |
wastewater treatments | 1239 | 1442 | 18.746889 | 86 |
tmdl | 1260 | 1470 | 18.746074 | 86 |
aerobic sequencing batch reactor | 734 | 776 | 18.745749 | 95 |
irrigation water use | 1953 | 2348 | 18.743587 | 83 |
wastewater treatment plants (wwtp) | 893 | 990 | 18.740794 | 90 |
constructed wetland system | 926 | 1034 | 18.740638 | 90 |
rainwater harvesting | 2795 | 3345 | 18.740260 | 84 |
rainwater harvest | 2839 | 3401 | 18.736741 | 83 |
horizontal subsurface | 1002 | 1139 | 18.734438 | 88 |
desalination system | 2970 | 3554 | 18.733693 | 84 |
conventional wastewater treatment | 1310 | 1546 | 18.733205 | 85 |
water management strategies | 1307 | 1543 | 18.732147 | 85 |
water framework directive | 5922 | 6531 | 18.727823 | 91 |
sequencing batch reactor | 6291 | 6866 | 18.726589 | 92 |
hygiene (wash) | 953 | 1081 | 18.722793 | 88 |
irrigation schedule | 1349 | 1608 | 18.720648 | 84 |
drip irrigation system | 1770 | 2150 | 18.719454 | 82 |
wastewater reuse | 2596 | 3156 | 18.716565 | 82 |
water vulnerability | 1415 | 1698 | 18.716507 | 83 |
and hygiene (wash) | 927 | 1050 | 18.716397 | 88 |
untreated wastewater | 1305 | 1555 | 18.715274 | 84 |
urban water management | 1192 | 1406 | 18.714723 | 85 |
contaminated waters | 1628 | 1978 | 18.711922 | 82 |
integrated water resources management | 1541 | 1867 | 18.710990 | 83 |
agricultural non-point source | 910 | 1031 | 18.709870 | 88 |
irrigation method | 2474 | 3025 | 18.708818 | 82 |
conventional activated sludge | 1514 | 1836 | 18.707086 | 82 |
wastewater treatment plant effluent | 867 | 976 | 18.704282 | 89 |
irrigation scheduling | 3569 | 4272 | 18.704075 | 84 |
water management model | 1562 | 1903 | 18.702470 | 82 |
water governance | 2570 | 3149 | 18.702283 | 82 |
irrigation methods | 1602 | 1956 | 18.701282 | 82 |
wastewater treatment processes | 2555 | 3136 | 18.699420 | 81 |
irrigation efficiency | 1363 | 1646 | 18.699033 | 83 |
swmm | 1766 | 2171 | 18.697196 | 81 |
dye wastewater treatment | 725 | 787 | 18.696168 | 92 |
river water quality | 3125 | 3810 | 18.690451 | 82 |
water quality indicator | 1406 | 1711 | 18.690272 | 82 |
wastewater effluents | 1769 | 2184 | 18.689428 | 81 |
water quality indicators | 1200 | 1437 | 18.689424 | 84 |
water management practice | 1615 | 1986 | 18.689076 | 81 |
river management | 2255 | 2792 | 18.688937 | 81 |
organic wastewater | 1713 | 2113 | 18.688728 | 81 |
sanitation and hygiene | 1451 | 1772 | 18.688607 | 82 |
industrial wastewater treatment | 2352 | 2916 | 18.684965 | 81 |
integrated water resources | 1668 | 2060 | 18.684274 | 81 |
synthetic wastewater | 4639 | 5436 | 18.683607 | 85 |
drinking water production | 1074 | 1272 | 18.682215 | 84 |
water treatment technologies | 1907 | 2369 | 18.681815 | 80 |
stormwater management | 4094 | 4883 | 18.681185 | 84 |
water management practices | 1427 | 1750 | 18.678620 | 82 |
greywater | 1276 | 1550 | 18.676635 | 82 |
storm water management model | 923 | 1071 | 18.673435 | 86 |
water saving | 5171 | 5991 | 18.673382 | 86 |
wqi | 2954 | 3658 | 18.667870 | 81 |
raw wastewater | 1654 | 2061 | 18.667186 | 80 |
arsenic in drinking water | 888 | 1027 | 18.666308 | 86 |
stream water quality | 1443 | 1784 | 18.665633 | 81 |
management of water resources | 3157 | 3896 | 18.665234 | 81 |
water framework | 5978 | 6786 | 18.664409 | 88 |
groundwater management | 3386 | 4161 | 18.661946 | 81 |
agricultural water management | 914 | 1066 | 18.661444 | 86 |
biological wastewater treatment | 2378 | 2986 | 18.660288 | 80 |
drinking water standard | 2280 | 2867 | 18.659325 | 80 |
sustainable water resources | 882 | 1023 | 18.659075 | 86 |
saline waste | 1090 | 1311 | 18.659026 | 83 |
water disinfection | 3453 | 4243 | 18.658543 | 81 |
water allocation | 3684 | 4501 | 18.657107 | 82 |
seawater desalination | 4387 | 5250 | 18.656677 | 84 |
irrigation management | 5123 | 5994 | 18.656313 | 85 |
vertical flow constructed wetland | 675 | 738 | 18.652772 | 91 |
contaminated groundwater | 4354 | 5226 | 18.652729 | 83 |
agricultural non-point source pollution | 681 | 747 | 18.651315 | 91 |
nonpoint source pollution | 1860 | 2350 | 18.649444 | 79 |
water quality index | 4202 | 5078 | 18.648362 | 83 |
drinking water treatment | 5669 | 6550 | 18.647417 | 87 |
storm water management | 1431 | 1786 | 18.647336 | 80 |
subsurface flow constructed wetlands | 640 | 692 | 18.646519 | 92 |
secondary effluent | 2604 | 3284 | 18.645990 | 79 |
irrigation strategy | 616 | 659 | 18.645616 | 93 |
water quality guideline | 862 | 1004 | 18.644008 | 86 |
desalination membrane | 857 | 997 | 18.643990 | 86 |
wastewater reclamation | 1296 | 1607 | 18.642856 | 81 |
activated sludge (as) | 667 | 732 | 18.641108 | 91 |
biological wastewater | 2471 | 3133 | 18.639649 | 79 |
water security | 3661 | 4516 | 18.639400 | 81 |
lake water quality | 1133 | 1388 | 18.636192 | 82 |
municipal wastewater treatment | 5248 | 6177 | 18.636140 | 85 |
water, sanitation and hygiene | 800 | 922 | 18.634860 | 87 |
wastewater treatment systems | 2669 | 3382 | 18.634679 | 79 |
constructed wetlands | 6743 | 7589 | 18.634220 | 89 |
water, sanitation, and hygiene | 740 | 838 | 18.633730 | 88 |
rainwater harvesting system | 751 | 854 | 18.632757 | 88 |
water treatment technology | 1689 | 2147 | 18.632370 | 79 |
wastewater effluent | 4259 | 5181 | 18.631592 | 82 |
groundwater irrigation | 887 | 1049 | 18.627654 | 85 |
basin management | 2144 | 2745 | 18.626757 | 78 |
water sustainability | 1219 | 1519 | 18.622206 | 80 |
urban water supply | 1206 | 1501 | 18.622113 | 80 |
contaminated drinking water | 1134 | 1401 | 18.621537 | 81 |
textile wastewater treatment | 695 | 781 | 18.620050 | 89 |
olive mill wastewater (omw) | 633 | 694 | 18.618355 | 91 |
constructed wetland (cw) | 606 | 656 | 18.618138 | 92 |
point source pollution | 5101 | 6086 | 18.617767 | 84 |
efficient irrigation | 946 | 1139 | 18.617483 | 83 |
drinking water quality | 4002 | 4944 | 18.616390 | 81 |
treatment wetland | 1215 | 1519 | 18.615700 | 80 |
desalination systems | 1122 | 1389 | 18.615449 | 81 |
bank filtration | 732 | 836 | 18.615006 | 88 |
crop water productivity | 566 | 601 | 18.614881 | 94 |
river basin management | 1589 | 2036 | 18.612406 | 78 |
influent and effluent | 1788 | 2304 | 18.611060 | 78 |
contamination of groundwater | 1580 | 2026 | 18.610455 | 78 |
wastewater irrigation | 1157 | 1443 | 18.609462 | 80 |
coking wastewater | 775 | 901 | 18.607946 | 86 |
wastewater management | 2371 | 3061 | 18.607695 | 77 |
water resources allocation | 683 | 770 | 18.607012 | 89 |
reverse osmosis desalination | 1133 | 1412 | 18.606007 | 80 |
drinking water resource | 802 | 941 | 18.605451 | 85 |
wastewater system | 1881 | 2435 | 18.604784 | 77 |
wastewater quality | 1041 | 1284 | 18.603016 | 81 |
sequencing batch reactors (sbrs) | 555 | 590 | 18.602641 | 94 |
irrigation water management | 899 | 1082 | 18.602005 | 83 |
nitrate contamination | 1174 | 1474 | 18.600906 | 80 |
oily waste | 2477 | 3207 | 18.599570 | 77 |
surface water quality | 3225 | 4118 | 18.595120 | 78 |
wastewater treatment process | 5223 | 6279 | 18.594393 | 83 |
sequencing batch | 6950 | 7929 | 18.592733 | 88 |
water infrastructure | 3497 | 4445 | 18.589375 | 79 |
groundwater contaminant | 1077 | 1346 | 18.588806 | 80 |
sewage treatment plants (stps) | 530 | 560 | 18.587598 | 95 |
sanitation service | 1097 | 1376 | 18.586966 | 80 |
water harvesting | 4950 | 6026 | 18.586356 | 82 |
biological nutrient removal | 1228 | 1563 | 18.586054 | 79 |
municipal wwtp | 521 | 548 | 18.585441 | 95 |
sanitation facilities | 1084 | 1359 | 18.584933 | 80 |
olive mill waste | 1733 | 2263 | 18.584728 | 77 |
oily wastewater treatment | 638 | 716 | 18.583522 | 89 |
urban wastewater treatment plant | 607 | 672 | 18.582070 | 90 |
desalination process | 2520 | 3291 | 18.581787 | 77 |
irrigation water productivity | 527 | 558 | 18.581077 | 94 |
treatment wastewater | 1019 | 1269 | 18.580516 | 80 |
ro desalination | 759 | 893 | 18.579630 | 85 |
synthetic waste | 4784 | 5884 | 18.576172 | 81 |
potable reuse | 791 | 942 | 18.575070 | 84 |
water quality assessment | 3141 | 4064 | 18.573627 | 77 |
desalination unit | 1034 | 1296 | 18.573229 | 80 |
full-scale wastewater treatment plant | 534 | 571 | 18.572405 | 94 |
water conservation measures | 855 | 1037 | 18.572008 | 82 |
transboundary river | 847 | 1026 | 18.570915 | 83 |
rainfed agriculture | 932 | 1150 | 18.570593 | 81 |
groundwater arsenic | 566 | 618 | 18.569420 | 92 |
water quality improve | 2075 | 2740 | 18.569079 | 76 |
water pollutants | 3156 | 4095 | 18.567324 | 77 |
tn removal | 1548 | 2032 | 18.565687 | 76 |
anaerobic sequencing batch reactor | 491 | 512 | 18.565577 | 96 |
chemical wastewater | 1085 | 1377 | 18.563717 | 79 |
water harvest | 5073 | 6221 | 18.563480 | 82 |
drinking and irrigation | 899 | 1107 | 18.562782 | 81 |
water quality improvement | 1897 | 2513 | 18.562213 | 75 |
drinking purposes | 1205 | 1555 | 18.557828 | 77 |
water quality guidelines | 714 | 840 | 18.554933 | 85 |
wastewater treatment technologies | 905 | 1121 | 18.554750 | 81 |
industrial wastewaters | 2435 | 3231 | 18.553928 | 75 |
chloramination | 770 | 923 | 18.553779 | 83 |
treatment wetlands | 886 | 1094 | 18.553334 | 81 |
water effluents | 1984 | 2642 | 18.553281 | 75 |
open defecation | 697 | 816 | 18.552927 | 85 |
groundwater pollution | 3603 | 4653 | 18.551932 | 77 |
multi-effect distillation | 610 | 689 | 18.551516 | 89 |
irrigation technology | 894 | 1107 | 18.551410 | 81 |
total maximum daily load (tmdl) | 566 | 625 | 18.551063 | 91 |
drinking water safety | 636 | 728 | 18.549407 | 87 |
sequential batch reactor | 546 | 597 | 18.548222 | 91 |
drinking water standards | 1383 | 1819 | 18.547921 | 76 |
regulated deficit irrigation (rdi) | 494 | 522 | 18.547854 | 95 |
disinfection byproducts | 1659 | 2207 | 18.547554 | 75 |
disinfection byproduct | 1966 | 2629 | 18.545390 | 75 |
actual wastewater | 700 | 825 | 18.543614 | 85 |
wastewater systems | 1226 | 1599 | 18.542404 | 77 |
horizontal subsurface flow constructed wetland | 507 | 543 | 18.541036 | 93 |
domestic wastewater | 6438 | 7651 | 18.539655 | 84 |
sanitation system | 970 | 1227 | 18.539576 | 79 |
drinking water reservoir | 789 | 959 | 18.539560 | 82 |
desalination technologies | 866 | 1074 | 18.538280 | 81 |
sanitation services | 948 | 1196 | 18.537440 | 79 |
water pollutant | 4358 | 5539 | 18.537135 | 79 |
water quality monitoring. | 687 | 809 | 18.536986 | 85 |
improved sanitation | 911 | 1143 | 18.534787 | 80 |
water policy | 2787 | 3715 | 18.532481 | 75 |
water desalination system | 591 | 669 | 18.532417 | 88 |
treated municipal wastewater | 668 | 783 | 18.532402 | 85 |
drinking purpose | 1790 | 2408 | 18.531641 | 74 |
iwrm | 979 | 1247 | 18.530206 | 79 |
water productivity (wp) | 472 | 496 | 18.530025 | 95 |
hospital wastewater | 993 | 1268 | 18.529849 | 78 |
refinery wastewater | 937 | 1185 | 18.529750 | 79 |
effluent cod | 979 | 1248 | 18.528816 | 78 |
brackish water desalination | 703 | 837 | 18.528445 | 84 |
water recycling | 2544 | 3415 | 18.528401 | 74 |
effluent wastewater | 761 | 924 | 18.527578 | 82 |
water quality monitoring | 6089 | 7362 | 18.526344 | 83 |
transboundary water | 1126 | 1468 | 18.525219 | 77 |
pollution water | 1737 | 2343 | 18.525149 | 74 |
chemical oxygen demand (cod) removal | 1872 | 2537 | 18.519578 | 74 |
non-point source | 4880 | 6156 | 18.518409 | 79 |
aquaculture wastewater | 628 | 730 | 18.518071 | 86 |
quality of drinking water | 1253 | 1662 | 18.516536 | 75 |
dwtp | 579 | 658 | 18.515733 | 88 |
storm water management model (swmm) | 602 | 693 | 18.513916 | 87 |
drinking water disinfection | 608 | 703 | 18.511470 | 86 |
slaughterhouse wastewater | 557 | 627 | 18.511454 | 89 |
water quality indices | 836 | 1046 | 18.511189 | 80 |
wastewater treatment system | 4461 | 5726 | 18.510627 | 78 |
membrane bioreactor (mbr) | 2190 | 2983 | 18.509668 | 73 |
wastewater treatment technology | 816 | 1017 | 18.509322 | 80 |
discharge standard | 2391 | 3252 | 18.508111 | 74 |
sludge volume index | 1011 | 1311 | 18.508016 | 77 |
plating wastewater | 889 | 1128 | 18.507746 | 79 |
influent wastewater | 770 | 949 | 18.506891 | 81 |
multi-reservoir | 699 | 842 | 18.506565 | 83 |
water quality monitor | 6138 | 7481 | 18.506479 | 82 |
nitrogen and phosphorus removal | 1390 | 1872 | 18.506066 | 74 |
sustainable water resources management | 558 | 631 | 18.504956 | 88 |
cod removal efficiency | 2344 | 3198 | 18.503445 | 73 |
sewage treatment plant (stp) | 531 | 592 | 18.501783 | 90 |
water nitrate | 1748 | 2391 | 18.499762 | 73 |
water quality deterioration | 938 | 1209 | 18.497322 | 78 |
wwtp effluents | 465 | 496 | 18.497297 | 94 |
water and sanitation | 3294 | 4413 | 18.497293 | 75 |
nutrients removal | 885 | 1129 | 18.497048 | 78 |
desalination performance | 1020 | 1333 | 18.496833 | 77 |
water treatment processes | 4328 | 5619 | 18.496275 | 77 |
drinking water resources | 642 | 761 | 18.495988 | 84 |
water scarce | 642 | 761 | 18.495988 | 84 |
wastewater streams | 981 | 1275 | 18.495826 | 77 |
water quality variables | 1236 | 1657 | 18.495084 | 75 |
drinking water supply | 3120 | 4205 | 18.495025 | 74 |
water security. | 710 | 865 | 18.494133 | 82 |
arsenic in groundwater | 519 | 577 | 18.493886 | 90 |
soil and water conservation measure | 610 | 714 | 18.492923 | 85 |
water quality degradation | 874 | 1117 | 18.489883 | 78 |
wastewater discharge | 4406 | 5725 | 18.489529 | 77 |
sludge retention time | 1004 | 1315 | 18.488777 | 76 |
contaminated ground | 4722 | 6078 | 18.487836 | 78 |
thermal desalination | 812 | 1024 | 18.487577 | 79 |
sludge retention | 1074 | 1422 | 18.487064 | 76 |
irrigation schedules | 687 | 834 | 18.486271 | 82 |
biological nitrogen removal | 1228 | 1654 | 18.485556 | 74 |
activated sludge system | 2190 | 3022 | 18.485183 | 72 |
smart irrigation | 720 | 885 | 18.485009 | 81 |
drinking water system | 1044 | 1379 | 18.484227 | 76 |
final effluent | 1667 | 2298 | 18.482652 | 73 |
treated wastewater | 7933 | 9263 | 18.482470 | 86 |
water treatment application | 1308 | 1777 | 18.481222 | 74 |
source pollution | 5732 | 7171 | 18.479061 | 80 |
water resource management | 6750 | 8179 | 18.478931 | 83 |
agricultural wastewater | 579 | 673 | 18.478900 | 86 |
desalination technology | 950 | 1241 | 18.477901 | 77 |
household water treatment | 464 | 501 | 18.476610 | 93 |
water demand management | 593 | 696 | 18.474793 | 85 |
nitritation | 1262 | 1717 | 18.472595 | 74 |
water quality status | 730 | 907 | 18.472517 | 80 |
soil and water conservation measures | 589 | 691 | 18.472205 | 85 |
water quality change | 1110 | 1491 | 18.469487 | 74 |
water quality data | 3276 | 4456 | 18.468534 | 74 |
water and wastewater treatment | 2094 | 2918 | 18.467993 | 72 |
drinking water treatment process | 508 | 570 | 18.467218 | 89 |
water management system | 1736 | 2418 | 18.466042 | 72 |
wastewater pollution | 623 | 746 | 18.465415 | 84 |
rain-fed agriculture | 574 | 671 | 18.465260 | 86 |
treatment of wastewater | 5302 | 6772 | 18.465002 | 78 |
reuse water | 861 | 1115 | 18.462415 | 77 |
processing wastewater | 1173 | 1593 | 18.462005 | 74 |
constructed wetland | 9693 | 10882 | 18.461906 | 89 |
removal of cod | 1343 | 1851 | 18.459563 | 73 |
sustainable groundwater management | 483 | 535 | 18.459388 | 90 |
water resources planning | 1674 | 2339 | 18.458180 | 72 |
river engineering | 881 | 1149 | 18.457743 | 77 |
water treatment sludge | 715 | 892 | 18.457318 | 80 |
water management plan | 960 | 1272 | 18.456355 | 75 |
sustainable water | 5386 | 6891 | 18.455890 | 78 |
aerobic wastewater treatment | 727 | 912 | 18.454746 | 80 |
full irrigation | 1406 | 1952 | 18.452883 | 72 |
safe drinking water | 3182 | 4378 | 18.451352 | 73 |
untreated waste | 1462 | 2037 | 18.451243 | 72 |
water supply systems | 2948 | 4085 | 18.449876 | 72 |
influent cod | 1028 | 1382 | 18.449589 | 74 |
nitrogen removal efficiency | 1431 | 1993 | 18.449420 | 72 |
charge stand | 2396 | 3361 | 18.449240 | 71 |
influents | 1121 | 1526 | 18.448233 | 73 |
deficit irrigation (di) | 392 | 403 | 18.447256 | 97 |
irrigation water use efficiency (iwue) | 425 | 452 | 18.446653 | 94 |
electrocoagulation (ec) | 1019 | 1371 | 18.445938 | 74 |
sewage treatment plants | 2983 | 4142 | 18.444106 | 72 |
water resources planning and management | 686 | 854 | 18.443740 | 80 |
moving bed biofilm | 875 | 1150 | 18.442368 | 76 |
water treatment systems | 3893 | 5269 | 18.440959 | 74 |
runoff water quality | 573 | 680 | 18.439793 | 84 |
irrigation water quality | 971 | 1302 | 18.438921 | 75 |
model wastewater | 594 | 713 | 18.438826 | 83 |
total suspended solids (tss) | 2851 | 3985 | 18.437848 | 72 |
water pollution. | 3924 | 5318 | 18.436330 | 74 |
water waste | 2065 | 2928 | 18.435696 | 71 |
groundwater contamination | 5364 | 6939 | 18.434698 | 77 |
waste water treatment plant | 1812 | 2571 | 18.433632 | 70 |
water effluent | 4752 | 6276 | 18.433602 | 76 |
enhanced biological phosphorus removal | 1022 | 1386 | 18.432866 | 74 |
hydraulic loading rate | 962 | 1293 | 18.432218 | 74 |
surface water treatment | 815 | 1063 | 18.431659 | 77 |
rainwater harvesting systems | 438 | 476 | 18.431359 | 92 |
low impact development | 1248 | 1736 | 18.431195 | 72 |
water quality and quantity | 1032 | 1403 | 18.431057 | 74 |
disinfection by-products | 2836 | 3980 | 18.430795 | 71 |
scarcity of water | 990 | 1338 | 18.430512 | 74 |
solar distillation | 761 | 979 | 18.430114 | 78 |
wastewater discharges | 1083 | 1483 | 18.430087 | 73 |
sanitation and hygiene (wash) | 500 | 571 | 18.430049 | 88 |
disinfection byproducts (dbps) | 691 | 869 | 18.429869 | 80 |
water treatment applications | 1078 | 1478 | 18.426821 | 73 |
disinfection by-products (dbps) | 1139 | 1573 | 18.426307 | 72 |
contamination of water | 2260 | 3216 | 18.425722 | 70 |
rainwater harvesting (rwh) | 453 | 501 | 18.424101 | 90 |
riverbank filtration | 404 | 427 | 18.423883 | 95 |
pharmaceutical waste | 1406 | 1984 | 18.423591 | 71 |
moving bed biofilm reactor | 832 | 1095 | 18.423416 | 76 |
non-potable | 851 | 1125 | 18.423372 | 76 |
sanitary sewer | 1048 | 1435 | 18.422363 | 73 |
quality of groundwater | 1356 | 1910 | 18.421961 | 71 |
water treatment efficiency | 552 | 655 | 18.421102 | 84 |
electroplating wastewater | 691 | 874 | 18.420303 | 79 |
membrane desalination | 563 | 673 | 18.419131 | 84 |
wastewater treatment facilities | 1313 | 1848 | 18.418591 | 71 |
simultaneous nitrification | 1093 | 1510 | 18.416675 | 72 |
biochemical oxygen demand (bod5) | 827 | 1092 | 18.415781 | 76 |
codmn | 975 | 1326 | 18.415535 | 74 |
water treatment plant (wtp) | 446 | 493 | 18.415531 | 90 |
water policies | 784 | 1024 | 18.415510 | 77 |
and wastewater treatment | 5557 | 7211 | 18.415304 | 77 |
water treatment facilities | 1966 | 2824 | 18.411971 | 70 |
lake restoration | 819 | 1082 | 18.411571 | 76 |
groundwater protection | 1004 | 1375 | 18.411235 | 73 |
safe drinking | 3342 | 4673 | 18.410542 | 72 |
basic sanitation | 672 | 849 | 18.410449 | 79 |
sanitation systems | 679 | 861 | 18.408740 | 79 |
grey water | 814 | 1077 | 18.406925 | 76 |
disinfection by-product | 3328 | 4666 | 18.406067 | 71 |
water management. | 5781 | 7481 | 18.405893 | 77 |
integrated water resource management | 584 | 712 | 18.405094 | 82 |
defluoridation | 1110 | 1547 | 18.404711 | 72 |
biological phosphorus removal | 1570 | 2253 | 18.404711 | 70 |
sewage system | 1653 | 2377 | 18.404697 | 70 |
production wastewater | 552 | 662 | 18.403827 | 83 |
desalination processes | 905 | 1224 | 18.403702 | 74 |
assessment of water quality | 1080 | 1501 | 18.403451 | 72 |
sustainable use of water | 553 | 664 | 18.402790 | 83 |
treated effluent | 3607 | 5024 | 18.402065 | 72 |
wastewater samples | 4005 | 5509 | 18.401410 | 73 |
sustainable wastewater treatment | 447 | 499 | 18.401262 | 90 |
drinking water supplies | 1402 | 2003 | 18.400931 | 70 |
conventional water treatment | 785 | 1035 | 18.400054 | 76 |
coagulation/flocculation | 772 | 1015 | 18.398737 | 76 |
arsenic removal | 2347 | 3384 | 18.398492 | 69 |
water quality standard | 3529 | 4941 | 18.396627 | 71 |
sustainable water use | 498 | 580 | 18.396265 | 86 |
desalination plants | 2212 | 3206 | 18.392144 | 69 |
tertiary treatment | 1815 | 2634 | 18.391966 | 69 |
water quality changes | 862 | 1164 | 18.391273 | 74 |
pollution of water | 1340 | 1920 | 18.389620 | 70 |
integrated water management | 753 | 990 | 18.389508 | 76 |
total nitrogen removal | 1228 | 1746 | 18.389424 | 70 |
effluent organic matter | 467 | 534 | 18.389061 | 87 |
wwtp | 12138 | 13254 | 18.388193 | 92 |
nonpoint source | 3050 | 4353 | 18.387104 | 70 |
treatment of municipal wastewater | 584 | 721 | 18.384547 | 81 |
water allocations | 488 | 569 | 18.383103 | 86 |
drinking water systems | 771 | 1023 | 18.382820 | 75 |
water resources system | 1068 | 1500 | 18.382476 | 71 |
advanced wastewater treatment | 894 | 1222 | 18.381805 | 73 |
cod concentration | 1727 | 2519 | 18.380905 | 69 |
management of irrigation | 584 | 723 | 18.380016 | 81 |
tannery waste | 1298 | 1865 | 18.379915 | 70 |
pit latrine | 552 | 672 | 18.379462 | 82 |
wastewater sample | 4524 | 6192 | 18.376681 | 73 |
chemical water quality | 622 | 786 | 18.375963 | 79 |
arsenic contamination | 1587 | 2315 | 18.375703 | 69 |
agricultural water use | 741 | 980 | 18.373476 | 76 |
wastewater treatment applications | 492 | 579 | 18.372839 | 85 |
surface water pollution | 634 | 807 | 18.372623 | 79 |
water supply and demand | 813 | 1099 | 18.370073 | 74 |
water management systems | 812 | 1098 | 18.369108 | 74 |
mbr system | 916 | 1267 | 18.368698 | 72 |
water health | 729 | 964 | 18.367425 | 76 |
humidification-dehumidification | 485 | 570 | 18.366945 | 85 |
wastewater sludge | 1579 | 2314 | 18.366889 | 68 |
irrigation technologies | 505 | 602 | 18.366551 | 84 |
oil wastewater | 548 | 671 | 18.366367 | 82 |
water standards | 1801 | 2650 | 18.366251 | 68 |
petrochemical wastewater | 529 | 641 | 18.365049 | 83 |
treatment and reuse | 894 | 1234 | 18.365035 | 72 |
water treatment facility | 1163 | 1667 | 18.364963 | 70 |
household water | 1652 | 2428 | 18.364662 | 68 |
water quality analysis | 1046 | 1480 | 18.364660 | 71 |
sludge volume | 1443 | 2108 | 18.364187 | 68 |
water quality standards | 2487 | 3644 | 18.363107 | 68 |
nitrate pollution | 1245 | 1799 | 18.363093 | 69 |
water, sanitation, and hygiene (wash) | 429 | 483 | 18.362690 | 89 |
polluted groundwater | 568 | 706 | 18.359937 | 80 |
irrigation performance | 504 | 603 | 18.359613 | 84 |
sludge volume index (svi) | 535 | 653 | 18.359175 | 82 |
tp removal | 778 | 1049 | 18.358972 | 74 |
water, sanitation and hygiene (wash) | 437 | 497 | 18.358078 | 88 |
water quality evaluation | 838 | 1148 | 18.357547 | 73 |
water quality monitoring system | 527 | 642 | 18.354416 | 82 |
partial nitrification | 927 | 1296 | 18.353744 | 72 |
monitoring water quality | 826 | 1131 | 18.353616 | 73 |
municipal wastewater effluent | 438 | 500 | 18.353566 | 88 |
alternative water | 1538 | 2268 | 18.353416 | 68 |
secondary wastewater | 652 | 846 | 18.353195 | 77 |
treated wastewater effluent | 432 | 491 | 18.352053 | 88 |
livestock wastewater | 461 | 537 | 18.352002 | 86 |
seawater reverse osmosis | 855 | 1180 | 18.351411 | 72 |
real textile wastewater | 367 | 390 | 18.351089 | 94 |
water-quality | 2366 | 3497 | 18.350837 | 68 |
acid wastewater | 490 | 584 | 18.350255 | 84 |
activated sludge systems | 963 | 1358 | 18.349450 | 71 |
decentralized wastewater | 491 | 586 | 18.349177 | 84 |
water reclamation | 2629 | 3870 | 18.348347 | 68 |
water reuse | 7680 | 9632 | 18.346490 | 80 |
water quality model | 4005 | 5663 | 18.346300 | 71 |
coagulation-flocculation | 1017 | 1450 | 18.344511 | 70 |
water standard | 2983 | 4360 | 18.344427 | 68 |
good water quality | 793 | 1083 | 18.344088 | 73 |
greywater treatment | 391 | 429 | 18.344026 | 91 |
treatment sludge | 997 | 1418 | 18.343779 | 70 |
water quality variation | 561 | 702 | 18.342852 | 80 |
aerobic membrane bioreactor | 947 | 1337 | 18.342847 | 71 |
riparian restoration | 363 | 386 | 18.342526 | 94 |
framework directive | 6064 | 8018 | 18.342127 | 76 |
water desalination | 8702 | 10615 | 18.341781 | 82 |
reclaimed water | 2410 | 3578 | 18.340832 | 67 |
efficient use of water | 717 | 960 | 18.340112 | 75 |
wastewater treatment efficiency | 414 | 467 | 18.337470 | 89 |
domestic sewage treatment | 479 | 571 | 18.337203 | 84 |
swine waste | 1353 | 1998 | 18.336856 | 68 |
non-point sources | 1098 | 1589 | 18.336227 | 69 |
cod removal rate | 1235 | 1811 | 18.335574 | 68 |
drinking water samples | 1640 | 2449 | 18.335113 | 67 |
textile waste | 3738 | 5365 | 18.334215 | 70 |
discharge standards | 987 | 1410 | 18.333509 | 70 |
constructed wetland systems | 405 | 454 | 18.333308 | 89 |
wastewater infrastructure | 488 | 587 | 18.333214 | 83 |
low impact development (lid) | 703 | 941 | 18.332772 | 75 |
sludge production | 1402 | 2081 | 18.332132 | 67 |
swro | 853 | 1191 | 18.330824 | 72 |
nps pollution | 531 | 658 | 18.330786 | 81 |
integrated water resources management (iwrm) | 512 | 627 | 18.330655 | 82 |
piggery wastewater | 434 | 501 | 18.330328 | 87 |
vertical flow constructed wetlands | 370 | 400 | 18.330057 | 93 |
mixed liquor suspended solid | 863 | 1209 | 18.328786 | 71 |
sustainable water supply | 431 | 497 | 18.327800 | 87 |
drinking water sample | 1715 | 2575 | 18.327336 | 67 |
water sludge | 1819 | 2736 | 18.325806 | 66 |
effluent water quality | 537 | 670 | 18.325523 | 80 |
water/wastewater | 655 | 866 | 18.324062 | 76 |
european water framework directive (wfd) | 356 | 380 | 18.323116 | 94 |
settleability | 1044 | 1513 | 18.322375 | 69 |
dbp formation | 608 | 789 | 18.321814 | 77 |
vfcw | 359 | 385 | 18.321736 | 93 |
desalinated water | 1068 | 1553 | 18.321724 | 69 |
effluent quality | 3261 | 4784 | 18.321163 | 68 |
enhanced biological phosphorus removal (ebpr) | 636 | 836 | 18.320915 | 76 |
simulated waste | 1814 | 2737 | 18.319987 | 66 |
urban stormwater | 1782 | 2689 | 18.319400 | 66 |
industrial wastewater treatment plant | 483 | 584 | 18.319181 | 83 |
biological wastewater treatment process | 465 | 555 | 18.318284 | 84 |
treated effluents | 957 | 1373 | 18.317955 | 70 |
activated sludge reactor | 557 | 708 | 18.313801 | 79 |
sanitation infrastructure | 472 | 568 | 18.313752 | 83 |
municipal sewage treatment | 687 | 925 | 18.313701 | 74 |
sustainable irrigation | 417 | 479 | 18.313479 | 87 |
olive mill | 1841 | 2788 | 18.313393 | 66 |
freshwater production | 648 | 860 | 18.313166 | 75 |
removal of arsenic | 1412 | 2120 | 18.312314 | 67 |
water managers | 1651 | 2497 | 18.312188 | 66 |
reclaimed wastewater | 610 | 797 | 18.312135 | 77 |
dairy waste | 1327 | 1985 | 18.311141 | 67 |
sludge floc | 1110 | 1632 | 18.310739 | 68 |
good ecological status | 562 | 718 | 18.309936 | 78 |
maximum contaminant level | 1027 | 1496 | 18.309553 | 69 |
polluted water | 6354 | 8458 | 18.308494 | 75 |
water quality modeling | 911 | 1304 | 18.308179 | 70 |
fecal indicator | 1311 | 1963 | 18.307673 | 67 |
aerobic granule | 925 | 1328 | 18.307390 | 70 |
anaerobic wastewater | 584 | 756 | 18.307010 | 77 |
drinking water guidelines | 380 | 422 | 18.306315 | 90 |
% cod removal | 785 | 1094 | 18.306277 | 72 |
phenol wastewater | 487 | 596 | 18.304419 | 82 |
runoff pollution | 491 | 603 | 18.303335 | 81 |
radioactive wastewater | 490 | 602 | 18.301605 | 81 |
nh4+-n removal | 602 | 789 | 18.300959 | 76 |
oil mill wastewater | 389 | 438 | 18.300283 | 89 |
cod removal. | 689 | 937 | 18.298241 | 74 |
clean drinking water | 703 | 961 | 18.297635 | 73 |
simultaneous nitrification and denitrification | 744 | 1031 | 18.296507 | 72 |
aerobic granules | 827 | 1172 | 18.295494 | 71 |
sustainable water resource management | 390 | 441 | 18.295321 | 88 |
tmdls | 403 | 462 | 18.295032 | 87 |
surface water contamination | 449 | 537 | 18.294625 | 84 |
suspended solids (ss) | 1018 | 1494 | 18.294434 | 68 |
aerobic activated sludge | 464 | 562 | 18.293655 | 83 |
water resources management | 9517 | 11606 | 18.293174 | 82 |
irrigation amount | 1199 | 1796 | 18.292733 | 67 |
solar disinfection | 405 | 466 | 18.292436 | 87 |
wastewater flow | 858 | 1227 | 18.291789 | 70 |
virtual water trade | 398 | 455 | 18.291388 | 87 |
anaerobic wastewater treatment | 532 | 676 | 18.291136 | 79 |
treated wastewaters | 514 | 646 | 18.290910 | 80 |
turbidity removal | 1287 | 1943 | 18.290274 | 66 |
virtual water | 1174 | 1758 | 18.289489 | 67 |
sludge reduction | 831 | 1183 | 18.289378 | 70 |
source of drinking water | 1376 | 2089 | 18.289296 | 66 |
best management practices (bmps) | 1269 | 1916 | 18.287987 | 66 |
water meter | 1040 | 1537 | 18.287317 | 68 |
water guidelines | 459 | 556 | 18.287249 | 83 |
haloacetic acid | 1275 | 1927 | 18.286910 | 66 |
drinking-water | 1747 | 2684 | 18.285703 | 65 |
crop evapotranspiration (etc) | 724 | 1004 | 18.285063 | 72 |
urban stormwater management | 465 | 567 | 18.284213 | 82 |
soil and groundwater | 2616 | 3983 | 18.284192 | 66 |
alternative water source | 565 | 735 | 18.283095 | 77 |
groundwater quality | 8996 | 11184 | 18.283020 | 80 |
domestic wastewater treatment plant | 371 | 414 | 18.282751 | 90 |
wine waste | 1367 | 2082 | 18.282730 | 66 |
secondary effluents | 556 | 720 | 18.282650 | 77 |
aerobic granular | 1786 | 2750 | 18.282175 | 65 |
trihalomethanes (thms) | 988 | 1455 | 18.281024 | 68 |
desalination plant | 3836 | 5637 | 18.280826 | 68 |
groundwater quality assessment | 437 | 522 | 18.280484 | 84 |
aerobic granular sludge | 1644 | 2530 | 18.280137 | 65 |
harvested rainwater | 353 | 386 | 18.280016 | 91 |
river basin management plan | 381 | 431 | 18.279333 | 88 |
sustainable management of water resources | 433 | 516 | 18.278689 | 84 |
irrigation purposes | 1497 | 2298 | 18.278150 | 65 |
harvesting water | 469 | 576 | 18.277650 | 81 |
scale waste | 1261 | 1914 | 18.277607 | 66 |
waste water treatment plants | 836 | 1200 | 18.277231 | 70 |
reuse of wastewater | 569 | 745 | 18.275985 | 76 |
wastewater treatment facility | 764 | 1078 | 18.275774 | 71 |
tile waste | 3769 | 5566 | 18.275499 | 68 |
wastewater pollutant | 437 | 524 | 18.274438 | 83 |
surface drip irrigation | 955 | 1406 | 18.272721 | 68 |
aquifer vulnerability | 529 | 679 | 18.271919 | 78 |
water treatment process | 8353 | 10636 | 18.271548 | 79 |
complex wastewater | 495 | 622 | 18.271031 | 80 |
water remediation | 4690 | 6725 | 18.270943 | 70 |
water treatment and reuse | 511 | 649 | 18.270918 | 79 |
sludge flocs | 765 | 1083 | 18.270642 | 71 |
managed aquifer recharge | 705 | 981 | 18.269079 | 72 |
wastewater (ww) | 414 | 488 | 18.268375 | 85 |
dwtps | 320 | 337 | 18.267045 | 95 |
biological activated carbon | 661 | 907 | 18.266332 | 73 |
wastewater recycling | 506 | 643 | 18.264820 | 79 |
water qualities | 934 | 1378 | 18.263072 | 68 |
contaminated waste | 1984 | 3087 | 18.262750 | 64 |
biochemical oxygen demand (bod) | 1916 | 2983 | 18.262122 | 64 |
biological oxygen demand (bod) | 1048 | 1574 | 18.260934 | 67 |
biological oxygen demand | 2587 | 3990 | 18.260789 | 65 |
mixed liquor | 2024 | 3153 | 18.260027 | 64 |
salinity wastewater | 402 | 471 | 18.259357 | 85 |
groundwater use | 1232 | 1886 | 18.258751 | 65 |
mbbr | 1011 | 1514 | 18.257627 | 67 |
municipal wastewaters | 599 | 805 | 18.257518 | 74 |
textile wastewaters | 404 | 475 | 18.257031 | 85 |
electrocoagulation process | 805 | 1161 | 18.256804 | 69 |
distillery wastewater | 452 | 555 | 18.256775 | 81 |
aerobic granular sludge (ags) | 534 | 694 | 18.256595 | 77 |
textile effluent | 1665 | 2597 | 18.256120 | 64 |
surface drip | 1116 | 1694 | 18.255791 | 66 |
water resource planning | 701 | 982 | 18.255646 | 71 |
water resource allocation | 394 | 459 | 18.255430 | 86 |
fecal indicator bacteria | 838 | 1219 | 18.255301 | 69 |
activated sludge floc | 473 | 591 | 18.254983 | 80 |
conventional wastewater treatment plant | 393 | 458 | 18.253231 | 86 |
advanced water treatment | 505 | 646 | 18.253097 | 78 |
water supply system | 5995 | 8296 | 18.252343 | 72 |
reverse osmosis (ro) desalination | 361 | 406 | 18.252116 | 89 |
anaerobic membrane | 817 | 1185 | 18.252077 | 69 |
anaerobic membrane bioreactor | 773 | 1109 | 18.251837 | 70 |
non-point source (nps) | 383 | 442 | 18.251722 | 87 |
water infrastructures | 415 | 495 | 18.251288 | 84 |
agricultural irrigation | 1641 | 2566 | 18.250833 | 64 |
groundwater contaminants | 515 | 664 | 18.250768 | 78 |
sewage wastewater | 492 | 625 | 18.250260 | 79 |
water quality class | 476 | 598 | 18.249816 | 80 |
solar desalination system | 368 | 418 | 18.249799 | 88 |
submerged membrane | 981 | 1470 | 18.249113 | 67 |
wastewater characteristic | 579 | 775 | 18.248298 | 75 |
tn and tp | 1555 | 2431 | 18.247996 | 64 |
activated sludge wastewater treatment | 516 | 667 | 18.247642 | 77 |
cod reduction | 1238 | 1909 | 18.246623 | 65 |
hydraulic retention time (hrt) | 3151 | 4819 | 18.246429 | 65 |
microbial water quality | 471 | 591 | 18.245841 | 80 |
haloacetic acids | 1078 | 1639 | 18.245739 | 66 |
water quality characteristics | 697 | 981 | 18.245549 | 71 |
uv254 | 1393 | 2169 | 18.245228 | 64 |
mixed liquor suspended solids | 729 | 1037 | 18.244970 | 70 |
irrigation purpose | 1777 | 2794 | 18.243445 | 64 |
codcr | 1432 | 2236 | 18.243117 | 64 |
water quality issues | 716 | 1016 | 18.242311 | 70 |
organic wastewater treatment | 334 | 365 | 18.241817 | 92 |
efficient water use | 525 | 685 | 18.241529 | 77 |
printing and dyeing wastewater | 367 | 419 | 18.240052 | 88 |
tile effluent | 1683 | 2649 | 18.239929 | 64 |
reuse wastewater | 396 | 467 | 18.239597 | 85 |
wastewater use | 487 | 621 | 18.238613 | 78 |
receiving water bodies | 687 | 969 | 18.236264 | 71 |
water quality models | 932 | 1397 | 18.235183 | 67 |
clean water and sanitation | 451 | 561 | 18.234906 | 80 |
organic matter removal | 1222 | 1895 | 18.234502 | 64 |
wastewater influent | 401 | 477 | 18.234069 | 84 |
metal wastewater | 395 | 467 | 18.234030 | 85 |
drastic model | 393 | 464 | 18.232914 | 85 |
water trade | 549 | 731 | 18.231163 | 75 |
ballast water treatment | 456 | 571 | 18.230724 | 80 |
water treatment membrane | 382 | 447 | 18.228439 | 85 |
waste-water treatment | 695 | 988 | 18.227761 | 70 |
water contaminant | 2706 | 4234 | 18.227357 | 64 |
urban water system | 665 | 936 | 18.226608 | 71 |
water user | 2533 | 3983 | 18.226237 | 64 |
real wastewater treatment | 301 | 316 | 18.225707 | 95 |
water quality management | 2653 | 4161 | 18.225442 | 64 |
benchmark simulation model | 350 | 395 | 18.225442 | 89 |
groundwater vulnerability assessment | 342 | 382 | 18.225164 | 90 |
source water quality | 394 | 468 | 18.225109 | 84 |
wetland protection | 454 | 570 | 18.223996 | 80 |
non-point | 5642 | 8016 | 18.222505 | 70 |
phenolic wastewater | 474 | 605 | 18.222164 | 78 |
water scarcity | 11512 | 13767 | 18.221550 | 84 |
deficit irrigation strategies | 301 | 317 | 18.220934 | 95 |
swine wastewater treatment | 301 | 317 | 18.220934 | 95 |
olive mill wastewaters | 340 | 380 | 18.220079 | 89 |
water management policies | 422 | 517 | 18.219468 | 82 |
sanitary sewer overflow | 322 | 351 | 18.219138 | 92 |
waste-water | 1718 | 2737 | 18.218403 | 63 |
wastewater characteristics | 553 | 744 | 18.217881 | 74 |
textile industry wastewater | 392 | 467 | 18.217244 | 84 |
cod/n | 587 | 804 | 18.217074 | 73 |
cod and bod | 801 | 1182 | 18.216301 | 68 |
sewer overflows | 1201 | 1879 | 18.215937 | 64 |
process wastewater | 616 | 856 | 18.215164 | 72 |
sand filtration | 1366 | 2161 | 18.214438 | 63 |
activated sludge process | 3491 | 5368 | 18.214071 | 65 |
nitrogen removal process | 701 | 1007 | 18.213659 | 70 |
subsurface drip | 885 | 1332 | 18.213616 | 66 |
submerged membrane bioreactor | 650 | 917 | 18.213327 | 71 |
pit latrines | 410 | 499 | 18.212104 | 82 |
direct potable reuse | 372 | 435 | 18.212012 | 86 |
wastewater collection | 724 | 1049 | 18.211566 | 69 |
pollutant loads | 955 | 1457 | 18.211134 | 66 |
biological water quality | 495 | 646 | 18.210284 | 77 |
mlvss | 628 | 880 | 18.209829 | 71 |
polluted waters | 1178 | 1846 | 18.209768 | 64 |
water treatment methods | 749 | 1095 | 18.208915 | 68 |
water quality simulation | 529 | 706 | 18.208863 | 75 |
treated wastewater (tww) | 298 | 315 | 18.207696 | 95 |
excess sludge | 1208 | 1900 | 18.207504 | 64 |
nutrient removal | 5365 | 7752 | 18.207442 | 69 |
treatment of effluent | 859 | 1291 | 18.207272 | 67 |
sewage systems | 746 | 1091 | 18.206879 | 68 |
groundwater treatment | 707 | 1022 | 18.206470 | 69 |
wastewater treatment plant effluents | 356 | 410 | 18.205917 | 87 |
water fluoride | 767 | 1129 | 18.205796 | 68 |
water quantity and quality | 1165 | 1828 | 18.205515 | 64 |
membrane distillation (md) | 1071 | 1665 | 18.205393 | 64 |
industrial wastewater discharge | 381 | 452 | 18.205347 | 84 |
water quality impairment | 360 | 417 | 18.204646 | 86 |
sewage treatment plant | 6091 | 8598 | 18.204400 | 71 |
horizontal subsurface flow constructed wetlands | 305 | 327 | 18.203967 | 93 |
stormwater treatment | 773 | 1141 | 18.203802 | 68 |
drinking water reservoirs | 406 | 495 | 18.203254 | 82 |
subsurface drip irrigation | 766 | 1129 | 18.203141 | 68 |
sbr system | 549 | 744 | 18.202535 | 74 |
aquaculture waste | 684 | 984 | 18.201645 | 70 |
membrane bioreactors | 1928 | 3101 | 18.201488 | 62 |
ammonium removal | 948 | 1454 | 18.200074 | 65 |
rural water | 1514 | 2428 | 18.199719 | 62 |
wwt | 12831 | 15013 | 18.198944 | 85 |
domestic effluent | 506 | 670 | 18.198649 | 76 |
irrigation water supply | 401 | 488 | 18.198393 | 82 |
ecological water | 1063 | 1660 | 18.195941 | 64 |
diffuse pollution | 1088 | 1704 | 18.195701 | 64 |
drinking water well | 452 | 577 | 18.195066 | 78 |
efficiency of wastewater treatment | 353 | 408 | 18.194611 | 87 |
desalination energy | 385 | 462 | 18.194332 | 83 |
activated sludge processes | 625 | 883 | 18.194248 | 71 |
nitrate in groundwater | 363 | 425 | 18.193716 | 85 |
soluble microbial product | 956 | 1474 | 18.193160 | 65 |
treatment performance | 2561 | 4095 | 18.192905 | 63 |
water quality criteria | 1233 | 1959 | 18.192852 | 63 |
wetland system | 2032 | 3281 | 18.192841 | 62 |
artificial wastewater | 440 | 557 | 18.192715 | 79 |
water users | 1994 | 3221 | 18.192682 | 62 |
nonpoint | 3702 | 5714 | 18.192323 | 65 |
on-site wastewater | 430 | 540 | 18.191772 | 80 |
pollutant load | 2217 | 3573 | 18.191742 | 62 |
household drinking water | 310 | 338 | 18.190695 | 92 |
decentralized wastewater treatment | 379 | 453 | 18.190292 | 84 |
pollution of groundwater | 557 | 764 | 18.189963 | 73 |
average removal rate | 805 | 1208 | 18.189489 | 67 |
municipal wastewater | 12109 | 14484 | 18.188525 | 84 |
desalination membranes | 381 | 457 | 18.188238 | 83 |
water conservation practices | 435 | 550 | 18.187915 | 79 |
permeable reactive barrier | 1048 | 1642 | 18.187086 | 64 |
water safety | 1684 | 2730 | 18.185759 | 62 |
disinfection of water | 519 | 699 | 18.184408 | 74 |
total maximum daily loads | 349 | 404 | 18.184388 | 86 |
water treatment system | 6594 | 9242 | 18.184343 | 71 |
partial nitritation | 590 | 826 | 18.183566 | 71 |
water contaminants | 1761 | 2860 | 18.183532 | 62 |
zero liquid discharge | 568 | 787 | 18.182845 | 72 |
full-scale wwtp | 291 | 309 | 18.182525 | 94 |
wastewater treatment performance | 318 | 353 | 18.182299 | 90 |
sludge retention time (srt) | 460 | 596 | 18.181458 | 77 |
anmbr | 616 | 874 | 18.180915 | 70 |
residual sodium carbonate | 527 | 715 | 18.180343 | 74 |
urban wastewater treatment plants | 323 | 362 | 18.179104 | 89 |
sustainable use of water resources | 339 | 389 | 18.177591 | 87 |
permanganate index | 492 | 654 | 18.177537 | 75 |
bod5 | 5141 | 7597 | 18.177461 | 68 |
bod5/cod | 717 | 1058 | 18.177353 | 68 |
total suspended solids | 5489 | 8016 | 18.176713 | 68 |
crop water requirement | 1194 | 1909 | 18.176555 | 63 |
chemical wastewater treatment | 427 | 540 | 18.176549 | 79 |
finished water | 710 | 1046 | 18.176344 | 68 |
electroplating waste | 753 | 1124 | 18.175776 | 67 |
water safety plan | 364 | 432 | 18.174557 | 84 |
trihalomethanes | 2279 | 3704 | 18.173739 | 62 |
safety of drinking water | 435 | 555 | 18.173615 | 78 |
desalination of seawater | 486 | 645 | 18.173486 | 75 |
bioretention | 971 | 1518 | 18.173130 | 64 |
water treatment residual | 433 | 552 | 18.172179 | 78 |
nitrogen removal performance | 688 | 1009 | 18.171849 | 68 |
soluble microbial products | 865 | 1329 | 18.171662 | 65 |
toilet flushing | 456 | 593 | 18.170649 | 77 |
septic tanks | 869 | 1337 | 18.170643 | 65 |
anoxic/aerobic | 368 | 440 | 18.170365 | 84 |
use of water resources | 1166 | 1867 | 18.169900 | 62 |
mbr process | 460 | 601 | 18.168169 | 77 |
seawater reverse osmosis (swro) | 439 | 564 | 18.168024 | 78 |
water quality impact | 675 | 988 | 18.167597 | 68 |
improved water quality | 660 | 961 | 18.167256 | 69 |
drinking water treatment processes | 311 | 345 | 18.166889 | 90 |
crop irrigation | 849 | 1305 | 18.165332 | 65 |
tss removal | 431 | 551 | 18.164993 | 78 |
multi-reservoir system | 331 | 379 | 18.163996 | 87 |
volatile suspended solids | 1086 | 1734 | 18.161510 | 63 |
water shortages | 2468 | 4022 | 18.160921 | 61 |
water membrane | 800 | 1220 | 18.160132 | 66 |
water management plans | 375 | 455 | 18.160032 | 82 |
chemical oxygen demand removal | 692 | 1024 | 18.159161 | 68 |
municipal sewage treatment plant | 505 | 685 | 18.158818 | 74 |
water quality improvements | 483 | 646 | 18.157751 | 75 |
effluent concentrations | 1182 | 1909 | 18.156997 | 62 |
anammox process | 1078 | 1726 | 18.155159 | 62 |
coagulant dosage | 742 | 1118 | 18.154809 | 66 |
mill waste | 2906 | 4698 | 18.153136 | 62 |
sewer overflow | 1830 | 3022 | 18.153025 | 61 |
uasb reactor | 1456 | 2392 | 18.152867 | 61 |
toilet flush | 503 | 684 | 18.152716 | 74 |
water demand. | 1323 | 2162 | 18.152428 | 61 |
antibiotic wastewater | 341 | 399 | 18.151803 | 85 |
surface-flow constructed wetland | 276 | 291 | 18.151568 | 95 |
wetland treatment | 406 | 512 | 18.150335 | 79 |
olive oil mill wastewater | 320 | 364 | 18.149723 | 88 |
greywater reuse | 277 | 293 | 18.149613 | 95 |
drinking water fluoride | 365 | 441 | 18.148738 | 83 |
septic tank | 1693 | 2801 | 18.148568 | 60 |
hydraulic retention times | 1373 | 2254 | 18.148499 | 61 |
heavy metal wastewater | 331 | 383 | 18.147947 | 86 |
swmm model | 335 | 390 | 18.147117 | 86 |
wastewater composition | 395 | 494 | 18.146237 | 80 |
nutrient removal efficiency | 391 | 487 | 18.146199 | 80 |
wastewater treatment. | 14518 | 16740 | 18.145971 | 87 |
moving bed biofilm reactor (mbbr) | 407 | 516 | 18.143510 | 79 |
pollutants removal | 1612 | 2674 | 18.141973 | 60 |
water quality modelling | 580 | 829 | 18.141841 | 70 |
point-source pollution | 424 | 547 | 18.140929 | 78 |
phosphate accumulating organism | 467 | 624 | 18.140856 | 75 |
surface water and groundwater | 1845 | 3068 | 18.140134 | 60 |
real municipal wastewater | 269 | 282 | 18.139508 | 95 |
conventional activated sludge (cas) | 307 | 345 | 18.137647 | 89 |
management of water | 5262 | 7896 | 18.137294 | 67 |
water desalination plant | 673 | 1003 | 18.136433 | 67 |
recycled water | 1300 | 2141 | 18.136322 | 61 |
water and wastewater | 6174 | 8982 | 18.135861 | 69 |
water quality parameters | 7673 | 10630 | 18.135844 | 72 |
bottled waters | 342 | 405 | 18.135429 | 84 |
water protection | 2170 | 3607 | 18.134950 | 60 |
water quality indexes | 336 | 395 | 18.134271 | 85 |
ewater source | 471 | 634 | 18.133808 | 74 |
aerated filter | 666 | 992 | 18.133231 | 67 |
nitrogen wastewater | 337 | 397 | 18.133171 | 85 |
drinking water supply system | 375 | 463 | 18.132978 | 81 |
water crisis | 1644 | 2742 | 18.132804 | 60 |
sludge waste | 1523 | 2537 | 18.131155 | 60 |
fluoride removal | 1235 | 2032 | 18.130969 | 61 |
domestic sewage | 3147 | 5107 | 18.130804 | 62 |
reactive barrier | 1190 | 1952 | 18.130631 | 61 |
desalination water | 309 | 350 | 18.130507 | 88 |
efficient water management | 387 | 485 | 18.130051 | 80 |
groundwater samples | 5795 | 8565 | 18.130039 | 68 |
effluent water | 1718 | 2872 | 18.129850 | 60 |
stormwater runoff | 2412 | 4001 | 18.129671 | 60 |
urban storm | 2156 | 3596 | 18.128943 | 60 |
surface flow wetland | 353 | 426 | 18.128092 | 83 |
water demands | 2297 | 3824 | 18.127600 | 60 |
biological nutrient removal (bnr) | 386 | 484 | 18.127588 | 80 |
optimal irrigation | 655 | 975 | 18.127577 | 67 |
drinking water contamination | 382 | 477 | 18.127386 | 80 |
biological waste | 2696 | 4448 | 18.125865 | 61 |
winery wastewater | 316 | 363 | 18.125617 | 87 |
haloacetic acids (haas) | 514 | 716 | 18.125102 | 72 |
nitrogen removal rate | 1060 | 1724 | 18.124262 | 61 |
sequencing batch reactors (sbr) | 292 | 323 | 18.123657 | 90 |
water meters | 545 | 774 | 18.122930 | 70 |
drinking waters | 1163 | 1913 | 18.121925 | 61 |
conventional activated sludge process | 382 | 479 | 18.120877 | 80 |
biological aerated filter | 615 | 905 | 18.120177 | 68 |
total suspended solid | 6132 | 9002 | 18.120013 | 68 |
fluoride in drinking water | 513 | 717 | 18.118723 | 72 |
wastewater treatment methods | 392 | 498 | 18.116946 | 79 |
monitoring of water quality | 673 | 1015 | 18.116661 | 66 |
brewery wastewater | 428 | 563 | 18.115853 | 76 |
safe water | 2162 | 3631 | 18.115757 | 60 |
agricultural water resource | 399 | 511 | 18.115402 | 78 |
drinking water treatment plants (dwtps) | 260 | 272 | 18.114892 | 96 |
water footprint | 2063 | 3473 | 18.114048 | 59 |
potable water supply | 546 | 781 | 18.112178 | 70 |
ebpr | 921 | 1480 | 18.112130 | 62 |
petrochemical waste | 564 | 815 | 18.111025 | 69 |
real industrial wastewater | 262 | 276 | 18.110872 | 95 |
treatment water | 1690 | 2855 | 18.110200 | 59 |
anoxic/oxic | 493 | 684 | 18.109948 | 72 |
wfd | 2388 | 4005 | 18.109804 | 60 |
water quality parameter | 8035 | 11147 | 18.109009 | 72 |
water quality prediction | 565 | 818 | 18.108752 | 69 |
wastewater plant | 714 | 1097 | 18.108184 | 65 |
acidic wastewater | 397 | 510 | 18.107484 | 78 |
event mean concentration | 423 | 557 | 18.107268 | 76 |
sewage effluent | 2085 | 3523 | 18.106577 | 59 |
discharge limit | 1030 | 1687 | 18.105931 | 61 |
advanced treatment process | 376 | 473 | 18.105667 | 79 |
onsite wastewater | 342 | 413 | 18.105407 | 83 |
water risk | 713 | 1097 | 18.105324 | 65 |
oil mill waste | 468 | 640 | 18.105093 | 73 |
trihalomethane | 2804 | 4662 | 18.104881 | 60 |
water for irrigation | 2124 | 3591 | 18.104390 | 59 |
discharge limits | 718 | 1107 | 18.104388 | 65 |
transboundary river basin | 340 | 410 | 18.103539 | 83 |
crop evapotranspiration | 2164 | 3658 | 18.103487 | 59 |
contaminated water | 12999 | 15817 | 18.103207 | 82 |
waste-activated sludge | 304 | 348 | 18.102368 | 87 |
water management strategy | 396 | 510 | 18.101973 | 78 |
tn removal efficiency | 417 | 548 | 18.101900 | 76 |
waste water treatment | 5202 | 7964 | 18.100597 | 65 |
sewage treatment process | 474 | 653 | 18.100283 | 73 |
wastewater pollutants | 336 | 404 | 18.099769 | 83 |
drinking and irrigation purposes | 336 | 404 | 18.099769 | 83 |
tertiary wastewater | 357 | 441 | 18.099704 | 81 |
wastewater source | 429 | 571 | 18.098651 | 75 |
water supply infrastructure | 334 | 401 | 18.097867 | 83 |
autotrophic denitrification | 744 | 1161 | 18.096836 | 64 |
groundwater sample | 6066 | 9028 | 18.096235 | 67 |
arsenic drinking water | 270 | 292 | 18.096102 | 92 |
direct contact membrane distillation | 802 | 1271 | 18.095738 | 63 |
water planning | 823 | 1311 | 18.095078 | 63 |
mixed liquor suspended solids (mlss) | 425 | 565 | 18.095026 | 75 |
direct contact membrane | 808 | 1283 | 18.094795 | 63 |
groundwater and surface water | 1517 | 2578 | 18.094614 | 59 |
effluent treatment plant | 751 | 1176 | 18.094239 | 64 |
wastewater disinfection | 423 | 562 | 18.093194 | 75 |
activated sludge treatment | 948 | 1547 | 18.092995 | 61 |
hydrology and water quality | 376 | 477 | 18.092592 | 79 |
water management decisions | 358 | 445 | 18.091956 | 80 |
indicators of water quality | 491 | 688 | 18.091943 | 71 |
sludge blanket | 2090 | 3560 | 18.091336 | 59 |
international river | 516 | 735 | 18.091111 | 70 |
practical wastewater treatment | 267 | 288 | 18.091037 | 93 |
anoxic-oxic | 416 | 550 | 18.090960 | 76 |
industrial waste water | 1290 | 2178 | 18.090950 | 59 |
irrigation practice | 1422 | 2416 | 18.090116 | 59 |
reverse osmosis (ro) | 4379 | 6944 | 18.089795 | 63 |
removal rate of cod | 590 | 875 | 18.089189 | 67 |
nitrate removal | 2306 | 3917 | 18.089129 | 59 |
total dissolved solids (tds) | 2573 | 4342 | 18.089099 | 59 |
ballast water management | 372 | 471 | 18.088715 | 79 |
natural coagulant | 558 | 815 | 18.088599 | 68 |
agricultural water | 5012 | 7772 | 18.088390 | 64 |
variation of water quality | 317 | 374 | 18.087333 | 85 |
wetland systems | 975 | 1603 | 18.086880 | 61 |
permeate quality | 444 | 603 | 18.086643 | 74 |
phosphate accumulating organisms | 432 | 581 | 18.086318 | 74 |
upflow anaerobic sludge blanket | 1294 | 2191 | 18.086240 | 59 |
water quality impacts | 551 | 803 | 18.086230 | 69 |
water price | 902 | 1467 | 18.085923 | 61 |
omww | 307 | 357 | 18.085866 | 86 |
treatment train | 861 | 1390 | 18.085678 | 62 |
purification of wastewater | 416 | 552 | 18.085255 | 75 |
biological treatment process | 820 | 1313 | 18.085157 | 62 |
wastewater contaminant | 304 | 352 | 18.085081 | 86 |
dye-containing wastewater | 262 | 281 | 18.084219 | 93 |
drinking water wells | 379 | 485 | 18.084208 | 78 |
fecal contamination | 1589 | 2720 | 18.083942 | 58 |
phosphorus removal | 5792 | 8758 | 18.083091 | 66 |
allocation of water | 965 | 1588 | 18.082848 | 61 |
urban water cycle | 387 | 500 | 18.082592 | 77 |
on-site wastewater treatment | 314 | 370 | 18.082328 | 85 |
dyes wastewater | 293 | 334 | 18.081001 | 88 |
microbial source tracking | 643 | 980 | 18.080972 | 66 |
color removal | 2027 | 3475 | 18.080872 | 58 |
granular sludge | 2922 | 4901 | 18.080792 | 60 |
irrigation practices | 1156 | 1947 | 18.079153 | 59 |
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