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:45783	30,000 population served	2010
JiangsuHW:45785	30,000 population served	2010
JiangsuHW:45965	30,000 population served	2010
JiangsuHW:45967	30,000 population served	2010
JiangsuHW:45971	30,000 population served	2010
JiangsuHW:46020	30,000 population served	2010
ZhejiangHW:46042	30,000 population served	2010
ZhejiangHW:46047	30,000 population served	2010
ZhejiangHW:46055	30,000 population served	2010
ZhejiangHW:46061	30,000 population served	2010
ZhejiangHW:46065	30,000 population served	2010
ZhejiangHW:46079	30,000 population served	2010
ZhejiangHW:46091	30,000 population served	2010
ZhejiangHW:46096	30,000 population served	2010
ZhejiangHW:46111	30,000 population served	2010
ZhejiangHW:46151	30,000 population served	2010
AnhuiHW:46193	30,000 population served	2010
GuangdongHW:47099	30,000 population served	2010
GuangdongHW:47134	30,000 population served	2010
GuangxiHW:47191	30,000 population served	2010
HainanHW:47256	30,000 population served	2010
ShaanxiHW:47544	30,000 population served	2010
ShaanxiHW:47555	30,000 population served	2010
Nei MongolHW:45547	29,800 population served	2010
HebeiHW:45253	29,300 population served	2010
ShanxiHW:45465	29,200 population served	2010
JiangsuHW:45872	29,000 population served	2010
YunnanHW:47457	29,000 population served	2010
ShaanxiHW:47548	28,400 population served	2010
ZhejiangHW:46120	28,200 population served	2010
SichuanHW:47333	28,200 population served	2010
ShanxiHW:45482	28,000 population served	2010
Nei MongolHW:45554	28,000 population served	2010
JiangsuHW:45793	28,000 population served	2010
JiangsuHW:45890	28,000 population served	2010
ZhejiangHW:46108	28,000 population served	2010
HubeiHW:46741	28,000 population served	2010
HunanHW:46906	27,000 population served	2010
ShaanxiHW:47531	26,800 population served	2010
GansuHW:47566	26,800 population served	2010
ZhejiangHW:46117	26,700 population served	2010
ShandongHW:46484	26,400 population served	2010
Ningxia HuiHW:47603	26,400 population served	2010
Nei MongolHW:45530	26,300 population served	2010
HebeiHW:45370	26,000 population served	2010
Nei MongolHW:45525	26,000 population served	2010
LiaoningHW:45610	26,000 population served	2010
JiangsuHW:45871	26,000 population served	2010
JiangsuHW:45911	26,000 population served	2010
JiangsuHW:45914	26,000 population served	2010
HenanHW:46582	26,000 population served	2010
GuangxiHW:47185	26,000 population served	2010
Ningxia HuiHW:47593	26,000 population served	2010
HebeiHW:45229	25,000 population served	2010
JiangsuHW:45963	25,000 population served	2010
HubeiHW:46808	25,000 population served	2010
HubeiHW:46809	25,000 population served	2010
Xinjiang UygurHW:47616	25,000 population served	2010
ShanxiHW:45469	24,200 population served	2010
JiangsuHW:45989	24,000 population served	2010
JiangsuHW:45804	23,000 population served	2010
JiangsuHW:45906	23,000 population served	2010
JiangsuHW:45923	23,000 population served	2010
ZhejiangHW:46073	23,000 population served	2010
FujianHW:46244	23,000 population served	2010
FujianHW:46265	23,000 population served	2010
ChongqingHW:47284	23,000 population served	2010
SichuanHW:47336	22,700 population served	2010
BeijingHW:45172	22,000 population served	2010
ShanxiHW:45463	22,000 population served	2010
JiangsuHW:45852	22,000 population served	2010
JiangsuHW:45870	22,000 population served	2010
JiangsuHW:45937	22,000 population served	2010
JiangsuHW:45951	22,000 population served	2010
JiangsuHW:45962	22,000 population served	2010
ZhejiangHW:46074	22,000 population served	2010
Nei MongolHW:45531	21,000 population served	2010
Nei MongolHW:45550	21,000 population served	2010
JiangsuHW:45944	21,000 population served	2010
ZhejiangHW:46060	21,000 population served	2010
ChongqingHW:47283	21,000 population served	2010
BeijingHW:45192	20,000 population served	2010
HebeiHW:45246	20,000 population served	2010
Nei MongolHW:45510	20,000 population served	2010
Nei MongolHW:45522	20,000 population served	2010
JiangsuHW:45954	20,000 population served	2010
ZhejiangHW:46032	20,000 population served	2010
ZhejiangHW:46051	20,000 population served	2010
ZhejiangHW:46109	20,000 population served	2010
ShandongHW:46555	20,000 population served	2010
GuangxiHW:47157	20,000 population served	2010
ShaanxiHW:47547	20,000 population served	2010
ShanxiHW:45471	19,000 population served	2010
QinghaiHW:47581	19,000 population served	2010
HubeiHW:46761	18,900 population served	2010
GuizhouHW:47426	18,300 population served	2010
HebeiHW:45236	18,000 population served	2010
JiangsuHW:45840	18,000 population served	2010
JiangsuHW:45869	18,000 population served	2010
JiangsuHW:45934	18,000 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.