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
JiangsuHW:45998	230,000 population served	2010
AnhuiHW:46188	230,000 population served	2010
AnhuiHW:46199	230,000 population served	2010
ShandongHW:46382	230,000 population served	2010
ShandongHW:46385	230,000 population served	2010
ShandongHW:46410	230,000 population served	2010
ShandongHW:46547	230,000 population served	2010
GuangdongHW:46978	230,000 population served	2010
GuangdongHW:47046	230,000 population served	2010
GuangdongHW:47119	230,000 population served	2010
GuangxiHW:47239	230,000 population served	2010
ShaanxiHW:47504	230,000 population served	2010
ShandongHW:46478	228,100 population served	2010
ShanghaiHW:45749	226,000 population served	2010
SichuanHW:47393	223,400 population served	2010
Nei MongolHW:45535	223,000 population served	2010
HebeiHW:45373	222,200 population served	2010
BeijingHW:45167	220,000 population served	2010
ShanxiHW:45460	220,000 population served	2010
LiaoningHW:45590	220,000 population served	2010
JilinHW:45669	220,000 population served	2010
JiangsuHW:45816	220,000 population served	2010
JiangsuHW:45822	220,000 population served	2010
JiangsuHW:45859	220,000 population served	2010
JiangsuHW:45912	220,000 population served	2010
JiangsuHW:45978	220,000 population served	2010
JiangsuHW:46012	220,000 population served	2010
ZhejiangHW:46087	220,000 population served	2010
AnhuiHW:46197	220,000 population served	2010
AnhuiHW:46240	220,000 population served	2010
FujianHW:46266	220,000 population served	2010
FujianHW:46270	220,000 population served	2010
ShandongHW:46444	220,000 population served	2010
ShandongHW:46474	220,000 population served	2010
ShandongHW:46491	220,000 population served	2010
ShandongHW:46500	220,000 population served	2010
HenanHW:46707	220,000 population served	2010
HubeiHW:46766	220,000 population served	2010
HunanHW:46888	220,000 population served	2010
HunanHW:46934	220,000 population served	2010
GuangdongHW:47019	220,000 population served	2010
GuangdongHW:47036	220,000 population served	2010
GuangdongHW:47044	220,000 population served	2010
ChongqingHW:47293	220,000 population served	2010
GuizhouHW:47403	220,000 population served	2010
ShaanxiHW:47496	220,000 population served	2010
QinghaiHW:47578	220,000 population served	2010
Ningxia HuiHW:47587	220,000 population served	2010
HubeiHW:46798	218,700 population served	2010
ShandongHW:46460	218,000 population served	2010
HunanHW:46920	218,000 population served	2010
ShandongHW:46557	216,000 population served	2010
HunanHW:46878	216,000 population served	2010
GuangdongHW:47074	216,000 population served	2010
HebeiHW:45376	215,000 population served	2010
LiaoningHW:45562	214,700 population served	2010
HebeiHW:45360	214,000 population served	2010
HubeiHW:46797	212,000 population served	2010
ChongqingHW:47279	212,000 population served	2010
HenanHW:46604	211,300 population served	2010
HunanHW:46895	211,000 population served	2010
HebeiHW:45350	210,000 population served	2010
ShanxiHW:45433	210,000 population served	2010
JiangsuHW:45821	210,000 population served	2010
ZhejiangHW:46121	210,000 population served	2010
AnhuiHW:46215	210,000 population served	2010
ShandongHW:46466	210,000 population served	2010
ShandongHW:46529	210,000 population served	2010
HenanHW:46581	210,000 population served	2010
HenanHW:46693	210,000 population served	2010
HunanHW:46854	210,000 population served	2010
HunanHW:46891	210,000 population served	2010
GuangdongHW:46977	210,000 population served	2010
GuangdongHW:47043	210,000 population served	2010
GuangdongHW:47107	210,000 population served	2010
GuizhouHW:47436	210,000 population served	2010
HenanHW:46602	209,800 population served	2010
ShanghaiHW:45750	208,700 population served	2010
JilinHW:45680	208,000 population served	2010
SichuanHW:47360	206,200 population served	2010
HunanHW:46828	205,200 population served	2010
JiangsuHW:45767	205,000 population served	2010
JiangsuHW:45864	205,000 population served	2010
HebeiHW:45412	202,000 population served	2010
Nei MongolHW:45551	202,000 population served	2010
ShandongHW:46487	201,000 population served	2010
BeijingHW:45157	200,000 population served	2010
TianjinHW:45199	200,000 population served	2010
TianjinHW:45203	200,000 population served	2010
TianjinHW:45213	200,000 population served	2010
HebeiHW:45351	200,000 population served	2010
ShanxiHW:45454	200,000 population served	2010
ShanxiHW:45467	200,000 population served	2010
ShanxiHW:45481	200,000 population served	2010
LiaoningHW:45581	200,000 population served	2010
LiaoningHW:45595	200,000 population served	2010
LiaoningHW:45597	200,000 population served	2010
JilinHW:45648	200,000 population served	2010
JilinHW:45662	200,000 population served	2010
JilinHW:45665	200,000 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.