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
GuangxiHW:47220	82,000 population served	2010
ChongqingHW:47262	82,000 population served	2010
ShaanxiHW:47537	82,000 population served	2010
Xinjiang UygurHW:47607	82,000 population served	2010
SichuanHW:47376	81,700 population served	2010
JilinHW:45675	81,600 population served	2010
HenanHW:46653	81,200 population served	2010
HebeiHW:45304	81,000 population served	2010
ShanxiHW:45474	81,000 population served	2010
JilinHW:45674	81,000 population served	2010
HeilongjiangHW:45702	81,000 population served	2010
JiangsuHW:45958	81,000 population served	2010
GuangxiHW:47180	81,000 population served	2010
Ningxia HuiHW:47591	81,000 population served	2010
HenanHW:46699	80,800 population served	2010
BeijingHW:45166	80,000 population served	2010
BeijingHW:45168	80,000 population served	2010
TianjinHW:45197	80,000 population served	2010
TianjinHW:45205	80,000 population served	2010
HebeiHW:45244	80,000 population served	2010
HebeiHW:45272	80,000 population served	2010
HebeiHW:45333	80,000 population served	2010
HebeiHW:45344	80,000 population served	2010
HebeiHW:45366	80,000 population served	2010
ShanxiHW:45424	80,000 population served	2010
ShanxiHW:45480	80,000 population served	2010
Nei MongolHW:45518	80,000 population served	2010
Nei MongolHW:45545	80,000 population served	2010
LiaoningHW:45560	80,000 population served	2010
LiaoningHW:45624	80,000 population served	2010
JiangsuHW:45766	80,000 population served	2010
JiangsuHW:45805	80,000 population served	2010
JiangsuHW:45815	80,000 population served	2010
JiangsuHW:45818	80,000 population served	2010
JiangsuHW:45922	80,000 population served	2010
JiangsuHW:45932	80,000 population served	2010
JiangsuHW:45977	80,000 population served	2010
ZhejiangHW:46028	80,000 population served	2010
ZhejiangHW:46086	80,000 population served	2010
ZhejiangHW:46093	80,000 population served	2010
ZhejiangHW:46136	80,000 population served	2010
JiangxiHW:46303	80,000 population served	2010
JiangxiHW:46343	80,000 population served	2010
JiangxiHW:46361	80,000 population served	2010
JiangxiHW:46363	80,000 population served	2010
ShandongHW:46402	80,000 population served	2010
ShandongHW:46413	80,000 population served	2010
ShandongHW:46414	80,000 population served	2010
ShandongHW:46452	80,000 population served	2010
ShandongHW:46504	80,000 population served	2010
ShandongHW:46580	80,000 population served	2010
HenanHW:46589	80,000 population served	2010
HenanHW:46658	80,000 population served	2010
HubeiHW:46735	80,000 population served	2010
HubeiHW:46785	80,000 population served	2010
HubeiHW:46802	80,000 population served	2010
HunanHW:46908	80,000 population served	2010
GuangdongHW:46999	80,000 population served	2010
GuangdongHW:47097	80,000 population served	2010
GuangdongHW:47144	80,000 population served	2010
HainanHW:47247	80,000 population served	2010
GuizhouHW:47411	80,000 population served	2010
GuizhouHW:47438	80,000 population served	2010
YunnanHW:47462	80,000 population served	2010
YunnanHW:47486	80,000 population served	2010
ShaanxiHW:47506	80,000 population served	2010
ShaanxiHW:47507	80,000 population served	2010
ShaanxiHW:47509	80,000 population served	2010
ShaanxiHW:47534	80,000 population served	2010
Ningxia HuiHW:47596	80,000 population served	2010
Ningxia HuiHW:47600	79,700 population served	2010
JilinHW:45666	79,600 population served	2010
ShandongHW:46374	79,500 population served	2010
GansuHW:47573	79,400 population served	2010
HenanHW:46677	79,200 population served	2010
SichuanHW:47342	79,100 population served	2010
HebeiHW:45381	79,000 population served	2010
LiaoningHW:45608	79,000 population served	2010
SichuanHW:47321	79,000 population served	2010
HebeiHW:45309	78,300 population served	2010
HebeiHW:45265	78,000 population served	2010
ShanxiHW:45436	78,000 population served	2010
JiangsuHW:45941	78,000 population served	2010
JiangxiHW:46364	78,000 population served	2010
HubeiHW:46756	78,000 population served	2010
GuangdongHW:47078	78,000 population served	2010
GuangdongHW:47123	78,000 population served	2010
LiaoningHW:45611	77,400 population served	2010
LiaoningHW:45617	77,000 population served	2010
ShanghaiHW:45725	77,000 population served	2010
HenanHW:46620	77,000 population served	2010
HenanHW:46649	77,000 population served	2010
SichuanHW:47371	77,000 population served	2010
YunnanHW:47484	77,000 population served	2010
SichuanHW:47383	76,500 population served	2010
ShaanxiHW:47524	76,500 population served	2010
FujianHW:46298	76,400 population served	2010
HenanHW:46643	76,200 population served	2010
GuangdongHW:47082	76,100 population served	2010
ShanghaiHW:45732	76,000 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.