6المياه النظيفة والنظافة الصحية

الهدف 6: المياه النظيفة والنظافة الصحية — الكلمات المفتاحية للأبحاث

الكلمات المفتاحية التي تُنسب بها البحوث إلى الهدف 6 (المياه النظيفة والنظافة الصحية)، من قوائم Sustainability Research Mapping 2023.

77 ذهبية 100 في أهم 100 998 في أهم 1000

القائمة الذهبية

الكلمات الذهبية

كلمات تدل على هذا الهدف وحدها. الرقم الصغير يشير إلى أهداف أخرى تشترك في الكلمة.

and hygiene (wash)¹⁷aquaculture waste¹⁴aquaculture wastewater¹⁴biological phosphorus removal¹⁴crop water productivity⁸ebpr¹⁴efficient use of water¹²enhanced biological phosphorus removal¹⁴enhanced biological phosphorus removal (ebpr)¹⁴groundwater protection¹⁵hygiene (wash)¹⁷industrial wastewater treatment⁹industrial wastewater treatment plant⁹industrial wastewater⁹industry wastewater⁹irrigation water productivity⁸lake restoration¹⁵low impact development¹¹low impact development (lid)¹¹municipal sewage treatment¹¹municipal sewage treatment plant¹¹municipal wastewater¹¹municipal wastewater effluent¹¹municipal wastewater treatment¹¹municipal wastewater treatment plant¹¹municipal wastewater treatment plants¹¹municipal wastewaters¹¹municipal wwtp¹¹nitrogen and phosphorus removal¹⁴open defecation¹⁷phosphate accumulating organism¹⁴phosphate accumulating organisms¹⁴phosphorus removal¹⁴rainfed agriculture²rain-fed agriculture^{2, 17}real municipal wastewater¹¹riparian restoration¹⁵river management¹⁵river restoration¹⁵soil and water conservation measure¹⁵soil and water conservation measures¹⁵solar desalination⁷storm water management¹¹storm water management model¹¹stormwater management¹¹stream restoration¹⁵sustainable groundwater¹⁵sustainable groundwater management¹⁵sustainable irrigation⁸sustainable use of water¹²sustainable use of water resources¹²swmm¹¹treated municipal wastewater¹¹treated wastewater effluent¹¹treatment of municipal wastewater¹¹urban storm¹¹urban stormwater¹¹urban stormwater management¹¹urban wastewater¹¹urban wastewater treatment¹¹urban wastewater treatment plant¹¹urban wastewater treatment plants¹¹urban water cycle¹¹urban water management¹¹urban water supply¹¹urban water system¹¹wastewater effluent¹¹wastewater effluents¹¹wastewater infrastructure⁹water conservation measures¹⁵water effluent¹¹water effluents¹¹water infrastructure⁹water infrastructures⁹water productivity⁸wetland protection¹⁵wetland restoration^{14, 15}

أهم 100

أهم 100 كلمة

الكلمات المئة الأكثر صلة بهذا الهدف، مرتبة حسب المرتبة.

1wastewater treatment
2contaminated water
3wwt
4wwtp
5municipal wastewater
6water scarcity
7constructed wetland
8water resources management
9groundwater quality
10water desalination
11water treatment process
12water quality parameter
13treated wastewater
14water reuse
15water quality parameters
16sequencing batch
17water resource management
18constructed wetlands
19water treatment system
20domestic wastewater
21polluted water
22sequencing batch reactor
23water and wastewater
24wwtps
25water quality monitor
26total suspended solid
27sewage treatment plant
28water quality monitoring
29groundwater sample
30framework directive
31water supply system
32water framework
33water framework directive
34groundwater samples
35phosphorus removal
36water management
37source pollution
38drinking water treatment
39non-point
40and wastewater treatment
41total suspended solids
42sustainable water
43nutrient removal
44groundwater contamination
45treatment of wastewater
46management of water
47municipal wastewater treatment
48wastewater treatment process
49waste water treatment
50water saving
51bod5
52irrigation management
53point source pollution
54water harvest
55agricultural water
56water harvesting
57water productivity
58non-point source
59synthetic waste
60water effluent
61contaminated ground
62water remediation
63synthetic wastewater
64wastewater sample
65wastewater treatment system
66wastewater discharge
67seawater desalination
68reverse osmosis (ro)
69deficit irrigation
70water pollutant
71contaminated groundwater
72water treatment processes
73wastewater treatment plants (wwtps)
74wastewater effluent
75water quality index
76water-saving
77stormwater management
78wastewater samples
79water quality model
80drinking water quality
81water pollution
82water treatment systems
83desalination plant
84tile waste
85textile waste
86nonpoint
87water allocation
88water security
89drinking water source
90treated effluent
91groundwater pollution
92irrigation scheduling
93municipal wastewater treatment plant
94textile wastewater
95water quality standard
96water infrastructure
97activated sludge process
98water disinfection
99groundwater management
100safe drinking

أهم 1000

أهم 1000 كلمة

المرتبة والكلمة ومؤشراتها في Scopus.

998 كلمة معروضة

المرتبة	الكلمة المفتاحية	أبحاث المجموعة	في Scopus كله	tf-idf	٪ من Scopus
1	sequencing batch reactor (sbr)	2,537	2,730	18.95	93%
2	waste activated sludge (was)	1,297	1,368	18.93	95%
3	wastewater treatment plant (wwtp)	3,249	3,494	18.93	93%
4	water framework directive (wfd)	1,609	1,757	18.91	92%
5	surface flow constructed wetland	1,334	1,434	18.9	93%
6	drinking water treatment plant	1,796	1,978	18.9	91%
7	european water framework directive	1,317	1,420	18.9	93%
8	the water framework directive	2,300	2,557	18.89	90%
9	irrigation water use efficiency	1,205	1,292	18.89	93%
10	sequencing batch reactors	1,800	1,999	18.89	90%
11	oily wastewater	2,321	2,590	18.89	90%
12	drinking water distribution system	1,574	1,736	18.88	91%
13	constructed wetlands (cws)	1,202	1,291	18.88	93%
14	wetland restoration	1,894	2,112	18.88	90%
15	wwtp effluent	1,080	1,143	18.88	94%
16	irrigation strategies	1,237	1,335	18.88	93%
17	dye wastewater	2,988	3,314	18.88	90%
18	drinking water distribution	1,942	2,171	18.88	89%
19	real wastewater	2,397	2,683	18.88	89%
20	river restoration	2,157	2,416	18.88	89%
21	wastewater treatment plants (wwtps)	4,307	4,633	18.88	93%
22	contaminated wastewater	1,767	1,975	18.87	89%
23	olive mill wastewater	1,562	1,735	18.87	90%
24	deficit irrigation	4,375	4,713	18.87	93%
25	water-saving irrigation	1,232	1,338	18.87	92%
26	non-point source pollution	3,020	3,382	18.86	89%
27	regulated deficit irrigation	961	1,012	18.85	95%
28	regulated deficit	975	1,031	18.85	95%
29	water-saving	4,115	4,546	18.83	91%
30	waste activated sludge	2,674	3,059	18.83	87%
31	textile wastewater	3,532	3,973	18.83	89%
32	stream restoration	1,315	1,472	18.83	89%
33	urban wastewater	3,193	3,623	18.83	88%
34	subsurface flow constructed wetland	1,014	1,095	18.83	93%
35	water savings	1,928	2,220	18.82	87%
36	eu water framework directive	1,135	1,252	18.82	91%
37	groundwater nitrate	1,259	1,413	18.81	89%
38	industrial wastewater	2,603	3,014	18.81	86%
39	drinking water sources	2,380	2,765	18.81	86%
40	domestic wastewater treatment	1,454	1,663	18.81	87%
41	total maximum daily load	1,167	1,303	18.81	90%
42	groundwater remediation	2,082	2,422	18.81	86%
43	drinking water distribution systems	1,063	1,171	18.81	91%
44	dyeing wastewater	1,430	1,635	18.81	87%
45	drinking water treatment plants	1,046	1,150	18.81	91%
46	tannery wastewater	1,147	1,282	18.8	89%
47	municipal wastewater treatment plants	1,615	1,869	18.8	86%
48	epanet	1,246	1,412	18.8	88%
49	wastewater remediation	1,284	1,461	18.79	88%
50	solar desalination	1,708	1,989	18.79	86%
51	activated sludge model	1,115	1,246	18.79	89%
52	sustainable water management	1,499	1,735	18.79	86%
53	maximum daily load	1,177	1,336	18.78	88%
54	dairy wastewater	1,166	1,322	18.78	88%
55	pharmaceutical wastewater	1,224	1,397	18.78	88%
56	dyeing waste	1,492	1,739	18.78	86%
57	drinking water source	3,622	4,177	18.77	87%
58	municipal wastewater treatment plant	3,568	4,123	18.77	87%
59	simulated wastewater	1,700	2,005	18.77	85%
60	the eu water framework directive	951	1,049	18.77	91%
61	water arsenic	1,083	1,223	18.77	89%
62	wastewater purification	1,657	1,955	18.77	85%
63	water quality index (wqi)	1,690	1,996	18.77	85%
64	bottled water	2,361	2,804	18.77	84%
65	mill wastewater	2,562	3,042	18.76	84%
66	dye waste	3,182	3,739	18.76	85%
67	swine wastewater	1,222	1,410	18.76	87%
68	wine wastewater	1,231	1,422	18.76	87%
69	water productivity	4,888	5,484	18.76	89%
70	groundwater vulnerability	1,245	1,442	18.76	86%
71	saline wastewater	1,020	1,149	18.76	89%
72	wwtps	6,171	6,669	18.75	93%
73	sustainable groundwater	1,029	1,164	18.75	88%
74	urban wastewater treatment	983	1,104	18.75	89%
75	horizontal subsurface flow	868	952	18.75	91%
76	surface flow constructed wetlands	791	850	18.75	93%
77	industry wastewater	2,262	2,715	18.75	83%
78	wastewater treatments	1,239	1,442	18.75	86%
79	tmdl	1,260	1,470	18.75	86%
80	aerobic sequencing batch reactor	734	776	18.75	95%
81	irrigation water use	1,953	2,348	18.74	83%
82	wastewater treatment plants (wwtp)	893	990	18.74	90%
83	constructed wetland system	926	1,034	18.74	90%
84	rainwater harvesting	2,795	3,345	18.74	84%
85	rainwater harvest	2,839	3,401	18.74	83%
86	horizontal subsurface	1,002	1,139	18.73	88%
87	desalination system	2,970	3,554	18.73	84%
88	conventional wastewater treatment	1,310	1,546	18.73	85%
89	water management strategies	1,307	1,543	18.73	85%
90	water framework directive	5,922	6,531	18.73	91%
91	sequencing batch reactor	6,291	6,866	18.73	92%
92	hygiene (wash)	953	1,081	18.72	88%
93	irrigation schedule	1,349	1,608	18.72	84%
94	drip irrigation system	1,770	2,150	18.72	82%
95	wastewater reuse	2,596	3,156	18.72	82%
96	water vulnerability	1,415	1,698	18.72	83%
97	and hygiene (wash)	927	1,050	18.72	88%
98	untreated wastewater	1,305	1,555	18.72	84%
99	urban water management	1,192	1,406	18.71	85%
100	contaminated waters	1,628	1,978	18.71	82%
101	integrated water resources management	1,541	1,867	18.71	83%
102	agricultural non-point source	910	1,031	18.71	88%
103	irrigation method	2,474	3,025	18.71	82%
104	conventional activated sludge	1,514	1,836	18.71	82%
105	wastewater treatment plant effluent	867	976	18.7	89%
106	irrigation scheduling	3,569	4,272	18.7	84%
107	water management model	1,562	1,903	18.7	82%
108	water governance	2,570	3,149	18.7	82%
109	irrigation methods	1,602	1,956	18.7	82%
110	wastewater treatment processes	2,555	3,136	18.7	81%
111	irrigation efficiency	1,363	1,646	18.7	83%
112	swmm	1,766	2,171	18.7	81%
113	dye wastewater treatment	725	787	18.7	92%
114	river water quality	3,125	3,810	18.69	82%
115	water quality indicator	1,406	1,711	18.69	82%
116	wastewater effluents	1,769	2,184	18.69	81%
117	water quality indicators	1,200	1,437	18.69	84%
118	water management practice	1,615	1,986	18.69	81%
119	river management	2,255	2,792	18.69	81%
120	organic wastewater	1,713	2,113	18.69	81%
121	sanitation and hygiene	1,451	1,772	18.69	82%
122	industrial wastewater treatment	2,352	2,916	18.68	81%
123	integrated water resources	1,668	2,060	18.68	81%
124	synthetic wastewater	4,639	5,436	18.68	85%
125	drinking water production	1,074	1,272	18.68	84%
126	water treatment technologies	1,907	2,369	18.68	80%
127	stormwater management	4,094	4,883	18.68	84%
128	water management practices	1,427	1,750	18.68	82%
129	greywater	1,276	1,550	18.68	82%
130	storm water management model	923	1,071	18.67	86%
131	water saving	5,171	5,991	18.67	86%
132	wqi	2,954	3,658	18.67	81%
133	raw wastewater	1,654	2,061	18.67	80%
134	arsenic in drinking water	888	1,027	18.67	86%
135	stream water quality	1,443	1,784	18.67	81%
136	management of water resources	3,157	3,896	18.67	81%
137	water framework	5,978	6,786	18.66	88%
138	groundwater management	3,386	4,161	18.66	81%
139	agricultural water management	914	1,066	18.66	86%
140	biological wastewater treatment	2,378	2,986	18.66	80%
141	drinking water standard	2,280	2,867	18.66	80%
142	sustainable water resources	882	1,023	18.66	86%
143	saline waste	1,090	1,311	18.66	83%
144	water disinfection	3,453	4,243	18.66	81%
145	water allocation	3,684	4,501	18.66	82%
146	seawater desalination	4,387	5,250	18.66	84%
147	irrigation management	5,123	5,994	18.66	85%
148	vertical flow constructed wetland	675	738	18.65	91%
149	contaminated groundwater	4,354	5,226	18.65	83%
150	agricultural non-point source pollution	681	747	18.65	91%
151	nonpoint source pollution	1,860	2,350	18.65	79%
152	water quality index	4,202	5,078	18.65	83%
153	drinking water treatment	5,669	6,550	18.65	87%
154	storm water management	1,431	1,786	18.65	80%
155	subsurface flow constructed wetlands	640	692	18.65	92%
156	secondary effluent	2,604	3,284	18.65	79%
157	irrigation strategy	616	659	18.65	93%
158	water quality guideline	862	1,004	18.64	86%
159	desalination membrane	857	997	18.64	86%
160	wastewater reclamation	1,296	1,607	18.64	81%
161	activated sludge (as)	667	732	18.64	91%
162	biological wastewater	2,471	3,133	18.64	79%
163	water security	3,661	4,516	18.64	81%
164	lake water quality	1,133	1,388	18.64	82%
165	municipal wastewater treatment	5,248	6,177	18.64	85%
166	water, sanitation and hygiene	800	922	18.63	87%
167	wastewater treatment systems	2,669	3,382	18.63	79%
168	constructed wetlands	6,743	7,589	18.63	89%
169	water, sanitation, and hygiene	740	838	18.63	88%
170	rainwater harvesting system	751	854	18.63	88%
171	water treatment technology	1,689	2,147	18.63	79%
172	wastewater effluent	4,259	5,181	18.63	82%
173	groundwater irrigation	887	1,049	18.63	85%
174	basin management	2,144	2,745	18.63	78%
175	water sustainability	1,219	1,519	18.62	80%
176	urban water supply	1,206	1,501	18.62	80%
177	contaminated drinking water	1,134	1,401	18.62	81%
178	textile wastewater treatment	695	781	18.62	89%
179	olive mill wastewater (omw)	633	694	18.62	91%
180	constructed wetland (cw)	606	656	18.62	92%
181	point source pollution	5,101	6,086	18.62	84%
182	efficient irrigation	946	1,139	18.62	83%
183	drinking water quality	4,002	4,944	18.62	81%
184	treatment wetland	1,215	1,519	18.62	80%
185	desalination systems	1,122	1,389	18.62	81%
186	bank filtration	732	836	18.62	88%
187	crop water productivity	566	601	18.61	94%
188	river basin management	1,589	2,036	18.61	78%
189	influent and effluent	1,788	2,304	18.61	78%
190	contamination of groundwater	1,580	2,026	18.61	78%
191	wastewater irrigation	1,157	1,443	18.61	80%
192	coking wastewater	775	901	18.61	86%
193	wastewater management	2,371	3,061	18.61	77%
194	water resources allocation	683	770	18.61	89%
195	reverse osmosis desalination	1,133	1,412	18.61	80%
196	drinking water resource	802	941	18.61	85%
197	wastewater system	1,881	2,435	18.6	77%
198	wastewater quality	1,041	1,284	18.6	81%
199	sequencing batch reactors (sbrs)	555	590	18.6	94%
200	irrigation water management	899	1,082	18.6	83%
201	nitrate contamination	1,174	1,474	18.6	80%
202	oily waste	2,477	3,207	18.6	77%
203	surface water quality	3,225	4,118	18.6	78%
204	wastewater treatment process	5,223	6,279	18.59	83%
205	sequencing batch	6,950	7,929	18.59	88%
206	water infrastructure	3,497	4,445	18.59	79%
207	groundwater contaminant	1,077	1,346	18.59	80%
208	sewage treatment plants (stps)	530	560	18.59	95%
209	sanitation service	1,097	1,376	18.59	80%
210	water harvesting	4,950	6,026	18.59	82%
211	biological nutrient removal	1,228	1,563	18.59	79%
212	municipal wwtp	521	548	18.59	95%
213	sanitation facilities	1,084	1,359	18.58	80%
214	olive mill waste	1,733	2,263	18.58	77%
215	oily wastewater treatment	638	716	18.58	89%
216	urban wastewater treatment plant	607	672	18.58	90%
217	desalination process	2,520	3,291	18.58	77%
218	irrigation water productivity	527	558	18.58	94%
219	treatment wastewater	1,019	1,269	18.58	80%
220	ro desalination	759	893	18.58	85%
221	synthetic waste	4,784	5,884	18.58	81%
222	potable reuse	791	942	18.58	84%
223	water quality assessment	3,141	4,064	18.57	77%
224	desalination unit	1,034	1,296	18.57	80%
225	full-scale wastewater treatment plant	534	571	18.57	94%
226	water conservation measures	855	1,037	18.57	82%
227	transboundary river	847	1,026	18.57	83%
228	rainfed agriculture	932	1,150	18.57	81%
229	groundwater arsenic	566	618	18.57	92%
230	water quality improve	2,075	2,740	18.57	76%
231	water pollutants	3,156	4,095	18.57	77%
232	tn removal	1,548	2,032	18.57	76%
233	anaerobic sequencing batch reactor	491	512	18.57	96%
234	chemical wastewater	1,085	1,377	18.56	79%
235	water harvest	5,073	6,221	18.56	82%
236	drinking and irrigation	899	1,107	18.56	81%
237	water quality improvement	1,897	2,513	18.56	75%
238	drinking purposes	1,205	1,555	18.56	77%
239	water quality guidelines	714	840	18.55	85%
240	wastewater treatment technologies	905	1,121	18.55	81%
241	industrial wastewaters	2,435	3,231	18.55	75%
242	chloramination	770	923	18.55	83%
243	treatment wetlands	886	1,094	18.55	81%
244	water effluents	1,984	2,642	18.55	75%
245	open defecation	697	816	18.55	85%
246	groundwater pollution	3,603	4,653	18.55	77%
247	multi-effect distillation	610	689	18.55	89%
248	irrigation technology	894	1,107	18.55	81%
249	total maximum daily load (tmdl)	566	625	18.55	91%
250	drinking water safety	636	728	18.55	87%
251	sequential batch reactor	546	597	18.55	91%
252	drinking water standards	1,383	1,819	18.55	76%
253	regulated deficit irrigation (rdi)	494	522	18.55	95%
254	disinfection byproducts	1,659	2,207	18.55	75%
255	disinfection byproduct	1,966	2,629	18.55	75%
256	actual wastewater	700	825	18.54	85%
257	wastewater systems	1,226	1,599	18.54	77%
258	horizontal subsurface flow constructed wetland	507	543	18.54	93%
259	domestic wastewater	6,438	7,651	18.54	84%
260	sanitation system	970	1,227	18.54	79%
261	drinking water reservoir	789	959	18.54	82%
262	desalination technologies	866	1,074	18.54	81%
263	sanitation services	948	1,196	18.54	79%
264	water pollutant	4,358	5,539	18.54	79%
265	water quality monitoring	687	809	18.54	85%
266	improved sanitation	911	1,143	18.53	80%
267	water policy	2,787	3,715	18.53	75%
268	water desalination system	591	669	18.53	88%
269	treated municipal wastewater	668	783	18.53	85%
270	drinking purpose	1,790	2,408	18.53	74%
271	iwrm	979	1,247	18.53	79%
272	water productivity (wp)	472	496	18.53	95%
273	hospital wastewater	993	1,268	18.53	78%
274	refinery wastewater	937	1,185	18.53	79%
275	effluent cod	979	1,248	18.53	78%
276	brackish water desalination	703	837	18.53	84%
277	water recycling	2,544	3,415	18.53	74%
278	effluent wastewater	761	924	18.53	82%
280	transboundary water	1,126	1,468	18.53	77%
281	pollution water	1,737	2,343	18.53	74%
282	chemical oxygen demand (cod) removal	1,872	2,537	18.52	74%
283	non-point source	4,880	6,156	18.52	79%
284	aquaculture wastewater	628	730	18.52	86%
285	quality of drinking water	1,253	1,662	18.52	75%
286	dwtp	579	658	18.52	88%
287	storm water management model (swmm)	602	693	18.51	87%
288	drinking water disinfection	608	703	18.51	86%
289	slaughterhouse wastewater	557	627	18.51	89%
290	water quality indices	836	1,046	18.51	80%
291	wastewater treatment system	4,461	5,726	18.51	78%
292	membrane bioreactor (mbr)	2,190	2,983	18.51	73%
293	wastewater treatment technology	816	1,017	18.51	80%
294	discharge standard	2,391	3,252	18.51	74%
295	sludge volume index	1,011	1,311	18.51	77%
296	plating wastewater	889	1,128	18.51	79%
297	influent wastewater	770	949	18.51	81%
298	multi-reservoir	699	842	18.51	83%
299	water quality monitor	6,138	7,481	18.51	82%
300	nitrogen and phosphorus removal	1,390	1,872	18.51	74%
301	sustainable water resources management	558	631	18.5	88%
302	cod removal efficiency	2,344	3,198	18.5	73%
303	sewage treatment plant (stp)	531	592	18.5	90%
304	water nitrate	1,748	2,391	18.5	73%
305	water quality deterioration	938	1,209	18.5	78%
306	wwtp effluents	465	496	18.5	94%
307	water and sanitation	3,294	4,413	18.5	75%
308	nutrients removal	885	1,129	18.5	78%
309	desalination performance	1,020	1,333	18.5	77%
310	water treatment processes	4,328	5,619	18.5	77%
311	drinking water resources	642	761	18.5	84%
312	water scarce	642	761	18.5	84%
313	wastewater streams	981	1,275	18.5	77%
314	water quality variables	1,236	1,657	18.5	75%
315	drinking water supply	3,120	4,205	18.5	74%
317	arsenic in groundwater	519	577	18.49	90%
318	soil and water conservation measure	610	714	18.49	85%
319	water quality degradation	874	1,117	18.49	78%
320	wastewater discharge	4,406	5,725	18.49	77%
321	sludge retention time	1,004	1,315	18.49	76%
322	contaminated ground	4,722	6,078	18.49	78%
323	thermal desalination	812	1,024	18.49	79%
324	sludge retention	1,074	1,422	18.49	76%
325	irrigation schedules	687	834	18.49	82%
326	biological nitrogen removal	1,228	1,654	18.49	74%
327	activated sludge system	2,190	3,022	18.49	72%
328	smart irrigation	720	885	18.49	81%
329	drinking water system	1,044	1,379	18.48	76%
330	final effluent	1,667	2,298	18.48	73%
331	treated wastewater	7,933	9,263	18.48	86%
332	water treatment application	1,308	1,777	18.48	74%
333	source pollution	5,732	7,171	18.48	80%
334	water resource management	6,750	8,179	18.48	83%
335	agricultural wastewater	579	673	18.48	86%
336	desalination technology	950	1,241	18.48	77%
337	household water treatment	464	501	18.48	93%
338	water demand management	593	696	18.47	85%
339	nitritation	1,262	1,717	18.47	74%
340	water quality status	730	907	18.47	80%
341	soil and water conservation measures	589	691	18.47	85%
342	water quality change	1,110	1,491	18.47	74%
343	water quality data	3,276	4,456	18.47	74%
344	water and wastewater treatment	2,094	2,918	18.47	72%
345	drinking water treatment process	508	570	18.47	89%
346	water management system	1,736	2,418	18.47	72%
347	wastewater pollution	623	746	18.47	84%
348	rain-fed agriculture	574	671	18.47	86%
349	treatment of wastewater	5,302	6,772	18.47	78%
350	reuse water	861	1,115	18.46	77%
351	processing wastewater	1,173	1,593	18.46	74%
352	constructed wetland	9,693	10,882	18.46	89%
353	removal of cod	1,343	1,851	18.46	73%
354	sustainable groundwater management	483	535	18.46	90%
355	water resources planning	1,674	2,339	18.46	72%
356	river engineering	881	1,149	18.46	77%
357	water treatment sludge	715	892	18.46	80%
358	water management plan	960	1,272	18.46	75%
359	sustainable water	5,386	6,891	18.46	78%
360	aerobic wastewater treatment	727	912	18.45	80%
361	full irrigation	1,406	1,952	18.45	72%
362	safe drinking water	3,182	4,378	18.45	73%
363	untreated waste	1,462	2,037	18.45	72%
364	water supply systems	2,948	4,085	18.45	72%
365	influent cod	1,028	1,382	18.45	74%
366	nitrogen removal efficiency	1,431	1,993	18.45	72%
367	charge stand	2,396	3,361	18.45	71%
368	influents	1,121	1,526	18.45	73%
369	deficit irrigation (di)	392	403	18.45	97%
370	irrigation water use efficiency (iwue)	425	452	18.45	94%
371	electrocoagulation (ec)	1,019	1,371	18.45	74%
372	sewage treatment plants	2,983	4,142	18.44	72%
373	water resources planning and management	686	854	18.44	80%
374	moving bed biofilm	875	1,150	18.44	76%
375	water treatment systems	3,893	5,269	18.44	74%
376	runoff water quality	573	680	18.44	84%
377	irrigation water quality	971	1,302	18.44	75%
378	model wastewater	594	713	18.44	83%
379	total suspended solids (tss)	2,851	3,985	18.44	72%
380	water pollution	3,924	5,318	18.44	74%
381	water waste	2,065	2,928	18.44	71%
382	groundwater contamination	5,364	6,939	18.43	77%
383	waste water treatment plant	1,812	2,571	18.43	70%
384	water effluent	4,752	6,276	18.43	76%
385	enhanced biological phosphorus removal	1,022	1,386	18.43	74%
386	hydraulic loading rate	962	1,293	18.43	74%
387	surface water treatment	815	1,063	18.43	77%
388	rainwater harvesting systems	438	476	18.43	92%
389	low impact development	1,248	1,736	18.43	72%
390	water quality and quantity	1,032	1,403	18.43	74%
391	disinfection by-products	2,836	3,980	18.43	71%
392	scarcity of water	990	1,338	18.43	74%
393	solar distillation	761	979	18.43	78%
394	wastewater discharges	1,083	1,483	18.43	73%
395	sanitation and hygiene (wash)	500	571	18.43	88%
396	disinfection byproducts (dbps)	691	869	18.43	80%
397	water treatment applications	1,078	1,478	18.43	73%
398	disinfection by-products (dbps)	1,139	1,573	18.43	72%
399	contamination of water	2,260	3,216	18.43	70%
400	rainwater harvesting (rwh)	453	501	18.42	90%
401	riverbank filtration	404	427	18.42	95%
402	pharmaceutical waste	1,406	1,984	18.42	71%
403	moving bed biofilm reactor	832	1,095	18.42	76%
404	non-potable	851	1,125	18.42	76%
405	sanitary sewer	1,048	1,435	18.42	73%
406	quality of groundwater	1,356	1,910	18.42	71%
407	water treatment efficiency	552	655	18.42	84%
408	electroplating wastewater	691	874	18.42	79%
409	membrane desalination	563	673	18.42	84%
410	wastewater treatment facilities	1,313	1,848	18.42	71%
411	simultaneous nitrification	1,093	1,510	18.42	72%
412	biochemical oxygen demand (bod5)	827	1,092	18.42	76%
413	codmn	975	1,326	18.42	74%
414	water treatment plant (wtp)	446	493	18.42	90%
415	water policies	784	1,024	18.42	77%
416	and wastewater treatment	5,557	7,211	18.42	77%
417	water treatment facilities	1,966	2,824	18.41	70%
418	lake restoration	819	1,082	18.41	76%
419	groundwater protection	1,004	1,375	18.41	73%
420	safe drinking	3,342	4,673	18.41	72%
421	basic sanitation	672	849	18.41	79%
422	sanitation systems	679	861	18.41	79%
423	grey water	814	1,077	18.41	76%
424	disinfection by-product	3,328	4,666	18.41	71%
425	water management	5,781	7,481	18.41	77%
426	integrated water resource management	584	712	18.41	82%
427	defluoridation	1,110	1,547	18.4	72%
428	biological phosphorus removal	1,570	2,253	18.4	70%
429	sewage system	1,653	2,377	18.4	70%
430	production wastewater	552	662	18.4	83%
431	desalination processes	905	1,224	18.4	74%
432	assessment of water quality	1,080	1,501	18.4	72%
433	sustainable use of water	553	664	18.4	83%
434	treated effluent	3,607	5,024	18.4	72%
435	wastewater samples	4,005	5,509	18.4	73%
436	sustainable wastewater treatment	447	499	18.4	90%
437	drinking water supplies	1,402	2,003	18.4	70%
438	conventional water treatment	785	1,035	18.4	76%
439	coagulation/flocculation	772	1,015	18.4	76%
440	arsenic removal	2,347	3,384	18.4	69%
441	water quality standard	3,529	4,941	18.4	71%
442	sustainable water use	498	580	18.4	86%
443	desalination plants	2,212	3,206	18.39	69%
444	tertiary treatment	1,815	2,634	18.39	69%
445	water quality changes	862	1,164	18.39	74%
446	pollution of water	1,340	1,920	18.39	70%
447	integrated water management	753	990	18.39	76%
448	total nitrogen removal	1,228	1,746	18.39	70%
449	effluent organic matter	467	534	18.39	87%
450	wwtp	12,138	13,254	18.39	92%
451	nonpoint source	3,050	4,353	18.39	70%
452	treatment of municipal wastewater	584	721	18.38	81%
453	water allocations	488	569	18.38	86%
454	drinking water systems	771	1,023	18.38	75%
455	water resources system	1,068	1,500	18.38	71%
456	advanced wastewater treatment	894	1,222	18.38	73%
457	cod concentration	1,727	2,519	18.38	69%
458	management of irrigation	584	723	18.38	81%
459	tannery waste	1,298	1,865	18.38	70%
460	pit latrine	552	672	18.38	82%
461	wastewater sample	4,524	6,192	18.38	73%
462	chemical water quality	622	786	18.38	79%
463	arsenic contamination	1,587	2,315	18.38	69%
464	agricultural water use	741	980	18.37	76%
465	wastewater treatment applications	492	579	18.37	85%
466	surface water pollution	634	807	18.37	79%
467	water supply and demand	813	1,099	18.37	74%
468	water management systems	812	1,098	18.37	74%
469	mbr system	916	1,267	18.37	72%
470	water health	729	964	18.37	76%
471	humidification-dehumidification	485	570	18.37	85%
472	wastewater sludge	1,579	2,314	18.37	68%
473	irrigation technologies	505	602	18.37	84%
474	oil wastewater	548	671	18.37	82%
475	water standards	1,801	2,650	18.37	68%
476	petrochemical wastewater	529	641	18.37	83%
477	treatment and reuse	894	1,234	18.37	72%
478	water treatment facility	1,163	1,667	18.36	70%
479	household water	1,652	2,428	18.36	68%
480	water quality analysis	1,046	1,480	18.36	71%
481	sludge volume	1,443	2,108	18.36	68%
482	water quality standards	2,487	3,644	18.36	68%
483	nitrate pollution	1,245	1,799	18.36	69%
484	water, sanitation, and hygiene (wash)	429	483	18.36	89%
485	polluted groundwater	568	706	18.36	80%
486	irrigation performance	504	603	18.36	84%
487	sludge volume index (svi)	535	653	18.36	82%
488	tp removal	778	1,049	18.36	74%
489	water, sanitation and hygiene (wash)	437	497	18.36	88%
490	water quality evaluation	838	1,148	18.36	73%
491	water quality monitoring system	527	642	18.35	82%
492	partial nitrification	927	1,296	18.35	72%
493	monitoring water quality	826	1,131	18.35	73%
494	municipal wastewater effluent	438	500	18.35	88%
495	alternative water	1,538	2,268	18.35	68%
496	secondary wastewater	652	846	18.35	77%
497	treated wastewater effluent	432	491	18.35	88%
498	livestock wastewater	461	537	18.35	86%
499	seawater reverse osmosis	855	1,180	18.35	72%
500	real textile wastewater	367	390	18.35	94%
501	water-quality	2,366	3,497	18.35	68%
502	acid wastewater	490	584	18.35	84%
503	activated sludge systems	963	1,358	18.35	71%
504	decentralized wastewater	491	586	18.35	84%
505	water reclamation	2,629	3,870	18.35	68%
506	water reuse	7,680	9,632	18.35	80%
507	water quality model	4,005	5,663	18.35	71%
508	coagulation-flocculation	1,017	1,450	18.34	70%
509	water standard	2,983	4,360	18.34	68%
510	good water quality	793	1,083	18.34	73%
511	greywater treatment	391	429	18.34	91%
512	treatment sludge	997	1,418	18.34	70%
513	water quality variation	561	702	18.34	80%
514	aerobic membrane bioreactor	947	1,337	18.34	71%
515	riparian restoration	363	386	18.34	94%
516	framework directive	6,064	8,018	18.34	76%
517	water desalination	8,702	10,615	18.34	82%
518	reclaimed water	2,410	3,578	18.34	67%
519	efficient use of water	717	960	18.34	75%
520	wastewater treatment efficiency	414	467	18.34	89%
521	domestic sewage treatment	479	571	18.34	84%
522	swine waste	1,353	1,998	18.34	68%
523	non-point sources	1,098	1,589	18.34	69%
524	cod removal rate	1,235	1,811	18.34	68%
525	drinking water samples	1,640	2,449	18.34	67%
526	textile waste	3,738	5,365	18.33	70%
527	discharge standards	987	1,410	18.33	70%
528	constructed wetland systems	405	454	18.33	89%
529	wastewater infrastructure	488	587	18.33	83%
530	low impact development (lid)	703	941	18.33	75%
531	sludge production	1,402	2,081	18.33	67%
532	swro	853	1,191	18.33	72%
533	nps pollution	531	658	18.33	81%
534	integrated water resources management (iwrm)	512	627	18.33	82%
535	piggery wastewater	434	501	18.33	87%
536	vertical flow constructed wetlands	370	400	18.33	93%
537	mixed liquor suspended solid	863	1,209	18.33	71%
538	sustainable water supply	431	497	18.33	87%
539	drinking water sample	1,715	2,575	18.33	67%
540	water sludge	1,819	2,736	18.33	66%
541	effluent water quality	537	670	18.33	80%
542	water/wastewater	655	866	18.32	76%
543	european water framework directive (wfd)	356	380	18.32	94%
544	settleability	1,044	1,513	18.32	69%
545	dbp formation	608	789	18.32	77%
546	vfcw	359	385	18.32	93%
547	desalinated water	1,068	1,553	18.32	69%
548	effluent quality	3,261	4,784	18.32	68%
549	enhanced biological phosphorus removal (ebpr)	636	836	18.32	76%
550	simulated waste	1,814	2,737	18.32	66%
551	urban stormwater	1,782	2,689	18.32	66%
552	industrial wastewater treatment plant	483	584	18.32	83%
553	biological wastewater treatment process	465	555	18.32	84%
554	treated effluents	957	1,373	18.32	70%
555	activated sludge reactor	557	708	18.31	79%
556	sanitation infrastructure	472	568	18.31	83%
557	municipal sewage treatment	687	925	18.31	74%
558	sustainable irrigation	417	479	18.31	87%
559	olive mill	1,841	2,788	18.31	66%
560	freshwater production	648	860	18.31	75%
561	removal of arsenic	1,412	2,120	18.31	67%
562	water managers	1,651	2,497	18.31	66%
563	reclaimed wastewater	610	797	18.31	77%
564	dairy waste	1,327	1,985	18.31	67%
565	sludge floc	1,110	1,632	18.31	68%
566	good ecological status	562	718	18.31	78%
567	maximum contaminant level	1,027	1,496	18.31	69%
568	polluted water	6,354	8,458	18.31	75%
569	water quality modeling	911	1,304	18.31	70%
570	fecal indicator	1,311	1,963	18.31	67%
571	aerobic granule	925	1,328	18.31	70%
572	anaerobic wastewater	584	756	18.31	77%
573	drinking water guidelines	380	422	18.31	90%
574	% cod removal	785	1,094	18.31	72%
575	phenol wastewater	487	596	18.3	82%
576	runoff pollution	491	603	18.3	81%
577	radioactive wastewater	490	602	18.3	81%
578	nh4+-n removal	602	789	18.3	76%
579	oil mill wastewater	389	438	18.3	89%
580	cod removal	689	937	18.3	74%
581	clean drinking water	703	961	18.3	73%
582	simultaneous nitrification and denitrification	744	1,031	18.3	72%
583	aerobic granules	827	1,172	18.3	71%
584	sustainable water resource management	390	441	18.3	88%
585	tmdls	403	462	18.3	87%
586	surface water contamination	449	537	18.29	84%
587	suspended solids (ss)	1,018	1,494	18.29	68%
588	aerobic activated sludge	464	562	18.29	83%
589	water resources management	9,517	11,606	18.29	82%
590	irrigation amount	1,199	1,796	18.29	67%
591	solar disinfection	405	466	18.29	87%
592	wastewater flow	858	1,227	18.29	70%
593	virtual water trade	398	455	18.29	87%
594	anaerobic wastewater treatment	532	676	18.29	79%
595	treated wastewaters	514	646	18.29	80%
596	turbidity removal	1,287	1,943	18.29	66%
597	virtual water	1,174	1,758	18.29	67%
598	sludge reduction	831	1,183	18.29	70%
599	source of drinking water	1,376	2,089	18.29	66%
600	best management practices (bmps)	1,269	1,916	18.29	66%
601	water meter	1,040	1,537	18.29	68%
602	water guidelines	459	556	18.29	83%
603	haloacetic acid	1,275	1,927	18.29	66%
604	drinking-water	1,747	2,684	18.29	65%
605	crop evapotranspiration (etc)	724	1,004	18.29	72%
606	urban stormwater management	465	567	18.28	82%
607	soil and groundwater	2,616	3,983	18.28	66%
608	alternative water source	565	735	18.28	77%
609	groundwater quality	8,996	11,184	18.28	80%
610	domestic wastewater treatment plant	371	414	18.28	90%
611	wine waste	1,367	2,082	18.28	66%
612	secondary effluents	556	720	18.28	77%
613	aerobic granular	1,786	2,750	18.28	65%
614	trihalomethanes (thms)	988	1,455	18.28	68%
615	desalination plant	3,836	5,637	18.28	68%
616	groundwater quality assessment	437	522	18.28	84%
617	aerobic granular sludge	1,644	2,530	18.28	65%
618	harvested rainwater	353	386	18.28	91%
619	river basin management plan	381	431	18.28	88%
620	sustainable management of water resources	433	516	18.28	84%
621	irrigation purposes	1,497	2,298	18.28	65%
622	harvesting water	469	576	18.28	81%
623	scale waste	1,261	1,914	18.28	66%
624	waste water treatment plants	836	1,200	18.28	70%
625	reuse of wastewater	569	745	18.28	76%
626	wastewater treatment facility	764	1,078	18.28	71%
627	tile waste	3,769	5,566	18.28	68%
628	wastewater pollutant	437	524	18.27	83%
629	surface drip irrigation	955	1,406	18.27	68%
630	aquifer vulnerability	529	679	18.27	78%
631	water treatment process	8,353	10,636	18.27	79%
632	complex wastewater	495	622	18.27	80%
633	water remediation	4,690	6,725	18.27	70%
634	water treatment and reuse	511	649	18.27	79%
635	sludge flocs	765	1,083	18.27	71%
636	managed aquifer recharge	705	981	18.27	72%
637	wastewater (ww)	414	488	18.27	85%
638	dwtps	320	337	18.27	95%
639	biological activated carbon	661	907	18.27	73%
640	wastewater recycling	506	643	18.26	79%
641	water qualities	934	1,378	18.26	68%
642	contaminated waste	1,984	3,087	18.26	64%
643	biochemical oxygen demand (bod)	1,916	2,983	18.26	64%
644	biological oxygen demand (bod)	1,048	1,574	18.26	67%
645	biological oxygen demand	2,587	3,990	18.26	65%
646	mixed liquor	2,024	3,153	18.26	64%
647	salinity wastewater	402	471	18.26	85%
648	groundwater use	1,232	1,886	18.26	65%
649	mbbr	1,011	1,514	18.26	67%
650	municipal wastewaters	599	805	18.26	74%
651	textile wastewaters	404	475	18.26	85%
652	electrocoagulation process	805	1,161	18.26	69%
653	distillery wastewater	452	555	18.26	81%
654	aerobic granular sludge (ags)	534	694	18.26	77%
655	textile effluent	1,665	2,597	18.26	64%
656	surface drip	1,116	1,694	18.26	66%
657	water resource planning	701	982	18.26	71%
658	water resource allocation	394	459	18.26	86%
659	fecal indicator bacteria	838	1,219	18.26	69%
660	activated sludge floc	473	591	18.25	80%
661	conventional wastewater treatment plant	393	458	18.25	86%
662	advanced water treatment	505	646	18.25	78%
663	water supply system	5,995	8,296	18.25	72%
664	reverse osmosis (ro) desalination	361	406	18.25	89%
665	anaerobic membrane	817	1,185	18.25	69%
666	anaerobic membrane bioreactor	773	1,109	18.25	70%
667	non-point source (nps)	383	442	18.25	87%
668	water infrastructures	415	495	18.25	84%
669	agricultural irrigation	1,641	2,566	18.25	64%
670	groundwater contaminants	515	664	18.25	78%
671	sewage wastewater	492	625	18.25	79%
672	water quality class	476	598	18.25	80%
673	solar desalination system	368	418	18.25	88%
674	submerged membrane	981	1,470	18.25	67%
675	wastewater characteristic	579	775	18.25	75%
676	tn and tp	1,555	2,431	18.25	64%
677	activated sludge wastewater treatment	516	667	18.25	77%
678	cod reduction	1,238	1,909	18.25	65%
679	hydraulic retention time (hrt)	3,151	4,819	18.25	65%
680	microbial water quality	471	591	18.25	80%
681	haloacetic acids	1,078	1,639	18.25	66%
682	water quality characteristics	697	981	18.25	71%
683	uv254	1,393	2,169	18.25	64%
684	mixed liquor suspended solids	729	1,037	18.24	70%
685	irrigation purpose	1,777	2,794	18.24	64%
686	codcr	1,432	2,236	18.24	64%
687	water quality issues	716	1,016	18.24	70%
688	organic wastewater treatment	334	365	18.24	92%
689	efficient water use	525	685	18.24	77%
690	printing and dyeing wastewater	367	419	18.24	88%
691	tile effluent	1,683	2,649	18.24	64%
692	reuse wastewater	396	467	18.24	85%
693	wastewater use	487	621	18.24	78%
694	receiving water bodies	687	969	18.24	71%
695	water quality models	932	1,397	18.24	67%
696	clean water and sanitation	451	561	18.23	80%
697	organic matter removal	1,222	1,895	18.23	64%
698	wastewater influent	401	477	18.23	84%
699	metal wastewater	395	467	18.23	85%
700	drastic model	393	464	18.23	85%
701	water trade	549	731	18.23	75%
702	ballast water treatment	456	571	18.23	80%
703	water treatment membrane	382	447	18.23	85%
704	waste-water treatment	695	988	18.23	70%
705	water contaminant	2,706	4,234	18.23	64%
706	urban water system	665	936	18.23	71%
707	water user	2,533	3,983	18.23	64%
708	real wastewater treatment	301	316	18.23	95%
709	water quality management	2,653	4,161	18.23	64%
710	benchmark simulation model	350	395	18.23	89%
711	groundwater vulnerability assessment	342	382	18.23	90%
712	source water quality	394	468	18.23	84%
713	wetland protection	454	570	18.22	80%
714	non-point	5,642	8,016	18.22	70%
715	phenolic wastewater	474	605	18.22	78%
716	water scarcity	11,512	13,767	18.22	84%
717	deficit irrigation strategies	301	317	18.22	95%
718	swine wastewater treatment	301	317	18.22	95%
719	olive mill wastewaters	340	380	18.22	89%
720	water management policies	422	517	18.22	82%
721	sanitary sewer overflow	322	351	18.22	92%
722	waste-water	1,718	2,737	18.22	63%
723	wastewater characteristics	553	744	18.22	74%
724	textile industry wastewater	392	467	18.22	84%
725	cod/n	587	804	18.22	73%
726	cod and bod	801	1,182	18.22	68%
727	sewer overflows	1,201	1,879	18.22	64%
728	process wastewater	616	856	18.22	72%
729	sand filtration	1,366	2,161	18.21	63%
730	activated sludge process	3,491	5,368	18.21	65%
731	nitrogen removal process	701	1,007	18.21	70%
732	subsurface drip	885	1,332	18.21	66%
733	submerged membrane bioreactor	650	917	18.21	71%
734	pit latrines	410	499	18.21	82%
735	direct potable reuse	372	435	18.21	86%
736	wastewater collection	724	1,049	18.21	69%
737	pollutant loads	955	1,457	18.21	66%
738	biological water quality	495	646	18.21	77%
739	mlvss	628	880	18.21	71%
740	polluted waters	1,178	1,846	18.21	64%
741	water treatment methods	749	1,095	18.21	68%
742	water quality simulation	529	706	18.21	75%
743	treated wastewater (tww)	298	315	18.21	95%
744	excess sludge	1,208	1,900	18.21	64%
745	nutrient removal	5,365	7,752	18.21	69%
746	treatment of effluent	859	1,291	18.21	67%
747	sewage systems	746	1,091	18.21	68%
748	groundwater treatment	707	1,022	18.21	69%
749	wastewater treatment plant effluents	356	410	18.21	87%
750	water fluoride	767	1,129	18.21	68%
751	water quantity and quality	1,165	1,828	18.21	64%
752	membrane distillation (md)	1,071	1,665	18.21	64%
753	industrial wastewater discharge	381	452	18.21	84%
754	water quality impairment	360	417	18.2	86%
755	sewage treatment plant	6,091	8,598	18.2	71%
756	horizontal subsurface flow constructed wetlands	305	327	18.2	93%
757	stormwater treatment	773	1,141	18.2	68%
758	drinking water reservoirs	406	495	18.2	82%
759	subsurface drip irrigation	766	1,129	18.2	68%
760	sbr system	549	744	18.2	74%
761	aquaculture waste	684	984	18.2	70%
762	membrane bioreactors	1,928	3,101	18.2	62%
763	ammonium removal	948	1,454	18.2	65%
764	rural water	1,514	2,428	18.2	62%
765	wwt	12,831	15,013	18.2	85%
766	domestic effluent	506	670	18.2	76%
767	irrigation water supply	401	488	18.2	82%
768	ecological water	1,063	1,660	18.2	64%
769	diffuse pollution	1,088	1,704	18.2	64%
770	drinking water well	452	577	18.2	78%
771	efficiency of wastewater treatment	353	408	18.19	87%
772	desalination energy	385	462	18.19	83%
773	activated sludge processes	625	883	18.19	71%
774	nitrate in groundwater	363	425	18.19	85%
775	soluble microbial product	956	1,474	18.19	65%
776	treatment performance	2,561	4,095	18.19	63%
777	water quality criteria	1,233	1,959	18.19	63%
778	wetland system	2,032	3,281	18.19	62%
779	artificial wastewater	440	557	18.19	79%
780	water users	1,994	3,221	18.19	62%
781	nonpoint	3,702	5,714	18.19	65%
782	on-site wastewater	430	540	18.19	80%
783	pollutant load	2,217	3,573	18.19	62%
784	household drinking water	310	338	18.19	92%
785	decentralized wastewater treatment	379	453	18.19	84%
786	pollution of groundwater	557	764	18.19	73%
787	average removal rate	805	1,208	18.19	67%
788	municipal wastewater	12,109	14,484	18.19	84%
789	desalination membranes	381	457	18.19	83%
790	water conservation practices	435	550	18.19	79%
791	permeable reactive barrier	1,048	1,642	18.19	64%
792	water safety	1,684	2,730	18.19	62%
793	disinfection of water	519	699	18.18	74%
794	total maximum daily loads	349	404	18.18	86%
795	water treatment system	6,594	9,242	18.18	71%
796	partial nitritation	590	826	18.18	71%
797	water contaminants	1,761	2,860	18.18	62%
798	zero liquid discharge	568	787	18.18	72%
799	full-scale wwtp	291	309	18.18	94%
800	wastewater treatment performance	318	353	18.18	90%
801	sludge retention time (srt)	460	596	18.18	77%
802	anmbr	616	874	18.18	70%
803	residual sodium carbonate	527	715	18.18	74%
804	urban wastewater treatment plants	323	362	18.18	89%
805	sustainable use of water resources	339	389	18.18	87%
806	permanganate index	492	654	18.18	75%
807	bod5	5,141	7,597	18.18	68%
808	bod5/cod	717	1,058	18.18	68%
809	total suspended solids	5,489	8,016	18.18	68%
810	crop water requirement	1,194	1,909	18.18	63%
811	chemical wastewater treatment	427	540	18.18	79%
812	finished water	710	1,046	18.18	68%
813	electroplating waste	753	1,124	18.18	67%
814	water safety plan	364	432	18.17	84%
815	trihalomethanes	2,279	3,704	18.17	62%
816	safety of drinking water	435	555	18.17	78%
817	desalination of seawater	486	645	18.17	75%
818	bioretention	971	1,518	18.17	64%
819	water treatment residual	433	552	18.17	78%
820	nitrogen removal performance	688	1,009	18.17	68%
821	soluble microbial products	865	1,329	18.17	65%
822	toilet flushing	456	593	18.17	77%
823	septic tanks	869	1,337	18.17	65%
824	anoxic/aerobic	368	440	18.17	84%
825	use of water resources	1,166	1,867	18.17	62%
826	mbr process	460	601	18.17	77%
827	seawater reverse osmosis (swro)	439	564	18.17	78%
828	water quality impact	675	988	18.17	68%
829	improved water quality	660	961	18.17	69%
830	drinking water treatment processes	311	345	18.17	90%
831	crop irrigation	849	1,305	18.17	65%
832	tss removal	431	551	18.16	78%
833	multi-reservoir system	331	379	18.16	87%
834	volatile suspended solids	1,086	1,734	18.16	63%
835	water shortages	2,468	4,022	18.16	61%
836	water membrane	800	1,220	18.16	66%
837	water management plans	375	455	18.16	82%
838	chemical oxygen demand removal	692	1,024	18.16	68%
839	municipal sewage treatment plant	505	685	18.16	74%
840	water quality improvements	483	646	18.16	75%
841	effluent concentrations	1,182	1,909	18.16	62%
842	anammox process	1,078	1,726	18.16	62%
843	coagulant dosage	742	1,118	18.15	66%
844	mill waste	2,906	4,698	18.15	62%
845	sewer overflow	1,830	3,022	18.15	61%
846	uasb reactor	1,456	2,392	18.15	61%
847	toilet flush	503	684	18.15	74%
848	water demand	1,323	2,162	18.15	61%
849	antibiotic wastewater	341	399	18.15	85%
850	surface-flow constructed wetland	276	291	18.15	95%
851	wetland treatment	406	512	18.15	79%
852	olive oil mill wastewater	320	364	18.15	88%
853	greywater reuse	277	293	18.15	95%
854	drinking water fluoride	365	441	18.15	83%
855	septic tank	1,693	2,801	18.15	60%
856	hydraulic retention times	1,373	2,254	18.15	61%
857	heavy metal wastewater	331	383	18.15	86%
858	swmm model	335	390	18.15	86%
859	wastewater composition	395	494	18.15	80%
860	nutrient removal efficiency	391	487	18.15	80%
861	wastewater treatment	14,518	16,740	18.15	87%
862	moving bed biofilm reactor (mbbr)	407	516	18.14	79%
863	pollutants removal	1,612	2,674	18.14	60%
864	water quality modelling	580	829	18.14	70%
865	point-source pollution	424	547	18.14	78%
866	phosphate accumulating organism	467	624	18.14	75%
867	surface water and groundwater	1,845	3,068	18.14	60%
868	real municipal wastewater	269	282	18.14	95%
869	conventional activated sludge (cas)	307	345	18.14	89%
870	management of water	5,262	7,896	18.14	67%
871	water desalination plant	673	1,003	18.14	67%
872	recycled water	1,300	2,141	18.14	61%
873	water and wastewater	6,174	8,982	18.14	69%
874	water quality parameters	7,673	10,630	18.14	72%
875	bottled waters	342	405	18.14	84%
876	water protection	2,170	3,607	18.13	60%
877	water quality indexes	336	395	18.13	85%
878	ewater source	471	634	18.13	74%
879	aerated filter	666	992	18.13	67%
880	nitrogen wastewater	337	397	18.13	85%
881	drinking water supply system	375	463	18.13	81%
882	water crisis	1,644	2,742	18.13	60%
883	sludge waste	1,523	2,537	18.13	60%
884	fluoride removal	1,235	2,032	18.13	61%
885	domestic sewage	3,147	5,107	18.13	62%
886	reactive barrier	1,190	1,952	18.13	61%
887	desalination water	309	350	18.13	88%
888	efficient water management	387	485	18.13	80%
889	groundwater samples	5,795	8,565	18.13	68%
890	effluent water	1,718	2,872	18.13	60%
891	stormwater runoff	2,412	4,001	18.13	60%
892	urban storm	2,156	3,596	18.13	60%
893	surface flow wetland	353	426	18.13	83%
894	water demands	2,297	3,824	18.13	60%
895	biological nutrient removal (bnr)	386	484	18.13	80%
896	optimal irrigation	655	975	18.13	67%
897	drinking water contamination	382	477	18.13	80%
898	biological waste	2,696	4,448	18.13	61%
899	winery wastewater	316	363	18.13	87%
900	haloacetic acids (haas)	514	716	18.13	72%
901	nitrogen removal rate	1,060	1,724	18.12	61%
902	sequencing batch reactors (sbr)	292	323	18.12	90%
903	water meters	545	774	18.12	70%
904	drinking waters	1,163	1,913	18.12	61%
905	conventional activated sludge process	382	479	18.12	80%
906	biological aerated filter	615	905	18.12	68%
907	total suspended solid	6,132	9,002	18.12	68%
908	fluoride in drinking water	513	717	18.12	72%
909	wastewater treatment methods	392	498	18.12	79%
910	monitoring of water quality	673	1,015	18.12	66%
911	brewery wastewater	428	563	18.12	76%
912	safe water	2,162	3,631	18.12	60%
913	agricultural water resource	399	511	18.12	78%
914	drinking water treatment plants (dwtps)	260	272	18.11	96%
915	water footprint	2,063	3,473	18.11	59%
916	potable water supply	546	781	18.11	70%
917	ebpr	921	1,480	18.11	62%
918	petrochemical waste	564	815	18.11	69%
919	real industrial wastewater	262	276	18.11	95%
920	treatment water	1,690	2,855	18.11	59%
921	anoxic/oxic	493	684	18.11	72%
922	wfd	2,388	4,005	18.11	60%
923	water quality parameter	8,035	11,147	18.11	72%
924	water quality prediction	565	818	18.11	69%
925	wastewater plant	714	1,097	18.11	65%
926	acidic wastewater	397	510	18.11	78%
927	event mean concentration	423	557	18.11	76%
928	sewage effluent	2,085	3,523	18.11	59%
929	discharge limit	1,030	1,687	18.11	61%
930	advanced treatment process	376	473	18.11	79%
931	onsite wastewater	342	413	18.11	83%
932	water risk	713	1,097	18.11	65%
933	oil mill waste	468	640	18.11	73%
934	trihalomethane	2,804	4,662	18.1	60%
935	water for irrigation	2,124	3,591	18.1	59%
936	discharge limits	718	1,107	18.1	65%
937	transboundary river basin	340	410	18.1	83%
938	crop evapotranspiration	2,164	3,658	18.1	59%
939	contaminated water	12,999	15,817	18.1	82%
940	waste-activated sludge	304	348	18.1	87%
941	water management strategy	396	510	18.1	78%
942	tn removal efficiency	417	548	18.1	76%
943	waste water treatment	5,202	7,964	18.1	65%
944	sewage treatment process	474	653	18.1	73%
945	wastewater pollutants	336	404	18.1	83%
946	drinking and irrigation purposes	336	404	18.1	83%
947	tertiary wastewater	357	441	18.1	81%
948	wastewater source	429	571	18.1	75%
949	water supply infrastructure	334	401	18.1	83%
950	autotrophic denitrification	744	1,161	18.1	64%
951	groundwater sample	6,066	9,028	18.1	67%
952	arsenic drinking water	270	292	18.1	92%
953	direct contact membrane distillation	802	1,271	18.1	63%
954	water planning	823	1,311	18.1	63%
955	mixed liquor suspended solids (mlss)	425	565	18.1	75%
956	direct contact membrane	808	1,283	18.09	63%
957	groundwater and surface water	1,517	2,578	18.09	59%
958	effluent treatment plant	751	1,176	18.09	64%
959	wastewater disinfection	423	562	18.09	75%
960	activated sludge treatment	948	1,547	18.09	61%
961	hydrology and water quality	376	477	18.09	79%
962	water management decisions	358	445	18.09	80%
963	indicators of water quality	491	688	18.09	71%
964	sludge blanket	2,090	3,560	18.09	59%
965	international river	516	735	18.09	70%
966	practical wastewater treatment	267	288	18.09	93%
967	anoxic-oxic	416	550	18.09	76%
968	industrial waste water	1,290	2,178	18.09	59%
969	irrigation practice	1,422	2,416	18.09	59%
970	reverse osmosis (ro)	4,379	6,944	18.09	63%
971	removal rate of cod	590	875	18.09	67%
972	nitrate removal	2,306	3,917	18.09	59%
973	total dissolved solids (tds)	2,573	4,342	18.09	59%
974	ballast water management	372	471	18.09	79%
975	natural coagulant	558	815	18.09	68%
976	agricultural water	5,012	7,772	18.09	64%
977	variation of water quality	317	374	18.09	85%
978	wetland systems	975	1,603	18.09	61%
979	permeate quality	444	603	18.09	74%
980	phosphate accumulating organisms	432	581	18.09	74%
981	upflow anaerobic sludge blanket	1,294	2,191	18.09	59%
982	water quality impacts	551	803	18.09	69%
983	water price	902	1,467	18.09	61%
984	omww	307	357	18.09	86%
985	treatment train	861	1,390	18.09	62%
986	purification of wastewater	416	552	18.09	75%
987	biological treatment process	820	1,313	18.09	62%
988	wastewater contaminant	304	352	18.09	86%
989	dye-containing wastewater	262	281	18.08	93%
990	drinking water wells	379	485	18.08	78%
991	fecal contamination	1,589	2,720	18.08	58%
992	phosphorus removal	5,792	8,758	18.08	66%
993	allocation of water	965	1,588	18.08	61%
994	urban water cycle	387	500	18.08	77%
995	on-site wastewater treatment	314	370	18.08	85%
996	dyes wastewater	293	334	18.08	88%
997	microbial source tracking	643	980	18.08	66%
998	color removal	2,027	3,475	18.08	58%
999	granular sludge	2,922	4,901	18.08	60%
1000	irrigation practices	1,156	1,947	18.08	59%