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
GuangdongHW:47000	90,000 population served	2010
GuangxiHW:47200	90,000 population served	2010
ChongqingHW:47299	90,000 population served	2010
ShanxiHW:45445	89,200 population served	2010
HebeiHW:45264	89,000 population served	2010
ShanxiHW:45476	89,000 population served	2010
Nei MongolHW:45513	89,000 population served	2010
Nei MongolHW:45541	89,000 population served	2010
JiangsuHW:45946	89,000 population served	2010
ZhejiangHW:46033	89,000 population served	2010
FujianHW:46247	89,000 population served	2010
ShandongHW:46409	89,000 population served	2010
ShandongHW:46546	89,000 population served	2010
HubeiHW:46728	89,000 population served	2010
GuizhouHW:47420	89,000 population served	2010
Xinjiang UygurHW:47632	89,000 population served	2010
GuangxiHW:47235	88,900 population served	2010
HunanHW:46836	88,500 population served	2010
HunanHW:46894	88,500 population served	2010
Nei MongolHW:45501	88,000 population served	2010
LiaoningHW:45582	88,000 population served	2010
JiangsuHW:45848	88,000 population served	2010
AnhuiHW:46224	88,000 population served	2010
HenanHW:46714	88,000 population served	2010
HenanHW:46674	87,600 population served	2010
JilinHW:45673	87,000 population served	2010
HeilongjiangHW:45687	87,000 population served	2010
HenanHW:46718	87,000 population served	2010
HubeiHW:46729	87,000 population served	2010
HubeiHW:46752	87,000 population served	2010
ShaanxiHW:47519	87,000 population served	2010
QinghaiHW:47583	87,000 population served	2010
JiangxiHW:46366	86,700 population served	2010
HunanHW:46857	86,700 population served	2010
HubeiHW:46783	86,400 population served	2010
SichuanHW:47315	86,300 population served	2010
YunnanHW:47490	86,300 population served	2010
ShaanxiHW:47528	86,200 population served	2010
JiangsuHW:45899	86,000 population served	2010
AnhuiHW:46229	86,000 population served	2010
FujianHW:46248	86,000 population served	2010
ShandongHW:46435	86,000 population served	2010
HenanHW:46598	86,000 population served	2010
GuangdongHW:46980	86,000 population served	2010
SichuanHW:47309	86,000 population served	2010
YunnanHW:47458	86,000 population served	2010
HunanHW:46846	85,900 population served	2010
ShandongHW:46523	85,500 population served	2010
ShandongHW:46373	85,400 population served	2010
HebeiHW:45254	85,000 population served	2010
HebeiHW:45328	85,000 population served	2010
HebeiHW:45363	85,000 population served	2010
HebeiHW:45404	85,000 population served	2010
JiangsuHW:45942	85,000 population served	2010
JiangsuHW:45943	85,000 population served	2010
ZhejiangHW:46080	85,000 population served	2010
FujianHW:46251	85,000 population served	2010
SichuanHW:47314	85,000 population served	2010
GuizhouHW:47432	85,000 population served	2010
GuizhouHW:47434	85,000 population served	2010
HebeiHW:45323	84,600 population served	2010
HenanHW:46632	84,500 population served	2010
HebeiHW:45247	84,200 population served	2010
ShandongHW:46530	84,200 population served	2010
ZhejiangHW:46054	84,000 population served	2010
FujianHW:46297	84,000 population served	2010
JiangxiHW:46322	84,000 population served	2010
JiangxiHW:46371	84,000 population served	2010
HenanHW:46634	84,000 population served	2010
GuangdongHW:47049	84,000 population served	2010
GuangdongHW:47080	84,000 population served	2010
HenanHW:46665	83,900 population served	2010
HunanHW:46865	83,800 population served	2010
LiaoningHW:45619	83,500 population served	2010
SichuanHW:47329	83,300 population served	2010
Xinjiang UygurHW:47611	83,100 population served	2010
JiangsuHW:45764	83,000 population served	2010
JiangsuHW:45915	83,000 population served	2010
ZhejiangHW:46076	83,000 population served	2010
FujianHW:46300	83,000 population served	2010
FujianHW:46302	83,000 population served	2010
ShaanxiHW:47508	83,000 population served	2010
Nei MongolHW:45505	82,900 population served	2010
HenanHW:46697	82,700 population served	2010
SichuanHW:47352	82,700 population served	2010
GuangdongHW:47073	82,600 population served	2010
SichuanHW:47397	82,600 population served	2010
YunnanHW:47470	82,400 population served	2010
HubeiHW:46730	82,300 population served	2010
GuangdongHW:47083	82,300 population served	2010
GuangdongHW:47018	82,200 population served	2010
GuangxiHW:47211	82,100 population served	2010
HebeiHW:45231	82,000 population served	2010
HebeiHW:45237	82,000 population served	2010
JiangsuHW:45896	82,000 population served	2010
JiangxiHW:46313	82,000 population served	2010
JiangxiHW:46321	82,000 population served	2010
ShandongHW:46376	82,000 population served	2010
ShandongHW:46502	82,000 population served	2010
GuangxiHW:47199	82,000 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.