Wastewater treatment plants in China: 2,486 WWTPs with capacity and treatment

World wastewater treatment plant observatory · data as reported by each inventory

Name	Native size	Year
JilinHW:45668	200,000 population served	2010
HeilongjiangHW:45686	200,000 population served	2010
HeilongjiangHW:45691	200,000 population served	2010
JiangsuHW:45925	200,000 population served	2010
JiangsuHW:45968	200,000 population served	2010
JiangsuHW:45986	200,000 population served	2010
JiangsuHW:45987	200,000 population served	2010
JiangsuHW:46010	200,000 population served	2010
ZhejiangHW:46050	200,000 population served	2010
ZhejiangHW:46125	200,000 population served	2010
AnhuiHW:46179	200,000 population served	2010
AnhuiHW:46184	200,000 population served	2010
AnhuiHW:46192	200,000 population served	2010
AnhuiHW:46202	200,000 population served	2010
AnhuiHW:46241	200,000 population served	2010
FujianHW:46288	200,000 population served	2010
FujianHW:46290	200,000 population served	2010
ShandongHW:46472	200,000 population served	2010
ShandongHW:46560	200,000 population served	2010
HunanHW:46825	200,000 population served	2010
HunanHW:46839	200,000 population served	2010
HunanHW:46892	200,000 population served	2010
GuangdongHW:46960	200,000 population served	2010
GuangdongHW:46966	200,000 population served	2010
GuangdongHW:46971	200,000 population served	2010
GuangdongHW:46984	200,000 population served	2010
GuangdongHW:47016	200,000 population served	2010
GuangdongHW:47027	200,000 population served	2010
GuangdongHW:47151	200,000 population served	2010
GuangxiHW:47170	200,000 population served	2010
GuangxiHW:47179	200,000 population served	2010
GuangxiHW:47186	200,000 population served	2010
GuangxiHW:47238	200,000 population served	2010
ChongqingHW:47268	200,000 population served	2010
ChongqingHW:47280	200,000 population served	2010
GuizhouHW:47401	200,000 population served	2010
GuizhouHW:47428	200,000 population served	2010
GuizhouHW:47430	200,000 population served	2010
YunnanHW:47465	200,000 population served	2010
ShaanxiHW:47518	200,000 population served	2010
ShaanxiHW:47538	200,000 population served	2010
GansuHW:47560	200,000 population served	2010
Xinjiang UygurHW:47622	200,000 population served	2010
SichuanHW:47380	199,600 population served	2010
Xinjiang UygurHW:47614	198,000 population served	2010
ShandongHW:46469	196,800 population served	2010
SichuanHW:47311	196,600 population served	2010
ShanghaiHW:45735	196,000 population served	2010
HubeiHW:46743	195,000 population served	2010
ShanxiHW:45453	193,000 population served	2010
ZhejiangHW:46092	193,000 population served	2010
ShaanxiHW:47497	192,000 population served	2010
HubeiHW:46721	191,200 population served	2010
LiaoningHW:45637	191,000 population served	2010
Nei MongolHW:45546	190,400 population served	2010
HebeiHW:45317	190,000 population served	2010
HebeiHW:45367	190,000 population served	2010
ShanxiHW:45414	190,000 population served	2010
ShanxiHW:45415	190,000 population served	2010
LiaoningHW:45603	190,000 population served	2010
JiangsuHW:45784	190,000 population served	2010
JiangsuHW:45985	190,000 population served	2010
JiangsuHW:46003	190,000 population served	2010
ZhejiangHW:46153	190,000 population served	2010
AnhuiHW:46237	190,000 population served	2010
FujianHW:46249	190,000 population served	2010
JiangxiHW:46333	190,000 population served	2010
ShandongHW:46477	190,000 population served	2010
ShandongHW:46506	190,000 population served	2010
ShandongHW:46517	190,000 population served	2010
ShandongHW:46559	190,000 population served	2010
ShandongHW:46567	190,000 population served	2010
HubeiHW:46763	190,000 population served	2010
GuizhouHW:47413	190,000 population served	2010
QinghaiHW:47584	190,000 population served	2010
HebeiHW:45395	189,000 population served	2010
JiangsuHW:45926	189,000 population served	2010
YunnanHW:47439	189,000 population served	2010
HubeiHW:46801	188,000 population served	2010
ShandongHW:46513	186,600 population served	2010
ShanghaiHW:45746	185,400 population served	2010
HenanHW:46639	185,000 population served	2010
LiaoningHW:45642	184,000 population served	2010
JilinHW:45646	183,000 population served	2010
JiangsuHW:45894	183,000 population served	2010
JiangsuHW:45970	183,000 population served	2010
JiangsuHW:45984	183,000 population served	2010
HunanHW:46856	183,000 population served	2010
GuangdongHW:47029	182,600 population served	2010
ShandongHW:46512	182,400 population served	2010
ShandongHW:46536	182,200 population served	2010
AnhuiHW:46219	182,000 population served	2010
HubeiHW:46768	182,000 population served	2010
HunanHW:46843	182,000 population served	2010
Xinjiang UygurHW:47619	182,000 population served	2010
Nei MongolHW:45492	181,300 population served	2010
ShaanxiHW:47520	181,100 population served	2010
HebeiHW:45239	181,000 population served	2010
BeijingHW:45158	180,000 population served	2010
BeijingHW:45160	180,000 population served	2010

Regulatory context

Partial review. This is not an exhaustive review of applicable law.

China: GB 18918-2002 and the 2025 amendment

Partial documentary review; human legal review pending. MEE announcement 2025 No. 24 modifies GB 18918-2002 and states application from 2026-03-01; it is not a renumbered standard. The annex provides a transition from 2028-01-01 for construction cohorts defined in its tables, which is neither brought forward to 2026 nor generalized to all plants. Territorial scope, effluent destination, classes and permit require review; a HydroWASTE label does not assign a legal class.

Confirm the scope of GB 18918, provincial rules and the individual permit.
Distinguish instantaneous values from averages; verify sampling point and the standard version applicable to the date.
Do not assess a historical inventory against 2026 limits without measurements from the relevant period.
Separate application from 2026-03-01 from the 2028 transition for specific cohorts; no dates, values or rules are assigned here to a facility.

MEE · anuncio 2025 n.º24: modificación GB 18918-2002Legal text · CN; alcance concreto pendiente
MEE · explicación oficial de la modificación, 2026-01-07Official guidance · CN; interpretación oficial de alcance general
MEE · anexo de modificación de GB 18918-2002, apartados I/III/V/VILegal text · Texto de modificación y transición por cohortes; sin valores ni asignación individual

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.