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:45861	120,000 population served	2010
JiangsuHW:45865	120,000 population served	2010
JiangsuHW:45913	120,000 population served	2010
JiangsuHW:45996	120,000 population served	2010
ZhejiangHW:46046	120,000 population served	2010
ZhejiangHW:46099	120,000 population served	2010
ZhejiangHW:46118	120,000 population served	2010
ZhejiangHW:46155	120,000 population served	2010
AnhuiHW:46220	120,000 population served	2010
FujianHW:46246	120,000 population served	2010
FujianHW:46254	120,000 population served	2010
FujianHW:46264	120,000 population served	2010
FujianHW:46301	120,000 population served	2010
JiangxiHW:46359	120,000 population served	2010
JiangxiHW:46360	120,000 population served	2010
ShandongHW:46424	120,000 population served	2010
ShandongHW:46426	120,000 population served	2010
ShandongHW:46430	120,000 population served	2010
ShandongHW:46434	120,000 population served	2010
ShandongHW:46471	120,000 population served	2010
ShandongHW:46498	120,000 population served	2010
ShandongHW:46551	120,000 population served	2010
HenanHW:46633	120,000 population served	2010
HubeiHW:46745	120,000 population served	2010
HubeiHW:46746	120,000 population served	2010
HubeiHW:46794	120,000 population served	2010
HubeiHW:46800	120,000 population served	2010
HunanHW:46821	120,000 population served	2010
HunanHW:46883	120,000 population served	2010
GuangdongHW:46962	120,000 population served	2010
GuangdongHW:46976	120,000 population served	2010
GuangdongHW:46979	120,000 population served	2010
GuangdongHW:46994	120,000 population served	2010
GuangdongHW:47005	120,000 population served	2010
GuangdongHW:47103	120,000 population served	2010
GuangdongHW:47120	120,000 population served	2010
GuangdongHW:47122	120,000 population served	2010
GuangxiHW:47166	120,000 population served	2010
GuangxiHW:47201	120,000 population served	2010
GuangxiHW:47204	120,000 population served	2010
GuangxiHW:47221	120,000 population served	2010
GuangxiHW:47228	120,000 population served	2010
HainanHW:47249	120,000 population served	2010
ChongqingHW:47294	120,000 population served	2010
GuizhouHW:47402	120,000 population served	2010
GuizhouHW:47416	120,000 population served	2010
YunnanHW:47477	120,000 population served	2010
ShaanxiHW:47535	120,000 population served	2010
ShaanxiHW:47541	120,000 population served	2010
ShaanxiHW:47545	120,000 population served	2010
SichuanHW:47316	119,400 population served	2010
GuangxiHW:47203	119,100 population served	2010
JiangsuHW:45759	119,000 population served	2010
SichuanHW:47346	118,900 population served	2010
GuangxiHW:47159	118,500 population served	2010
ShandongHW:46511	118,400 population served	2010
HunanHW:46901	118,400 population served	2010
BeijingHW:45183	118,000 population served	2010
HebeiHW:45401	118,000 population served	2010
LiaoningHW:45586	118,000 population served	2010
ShandongHW:46411	117,500 population served	2010
ShandongHW:46553	117,400 population served	2010
YunnanHW:47471	117,000 population served	2010
ShandongHW:46520	116,900 population served	2010
ShandongHW:46535	116,900 population served	2010
HenanHW:46694	116,600 population served	2010
ShandongHW:46526	116,000 population served	2010
HunanHW:46829	116,000 population served	2010
GuangdongHW:47045	116,000 population served	2010
ShandongHW:46384	115,800 population served	2010
SichuanHW:47310	115,500 population served	2010
LiaoningHW:45640	115,000 population served	2010
HenanHW:46611	115,000 population served	2010
HunanHW:46927	115,000 population served	2010
GuangdongHW:47048	115,000 population served	2010
YunnanHW:47455	113,800 population served	2010
SichuanHW:47349	113,700 population served	2010
GuangxiHW:47234	113,500 population served	2010
ShanxiHW:45439	113,300 population served	2010
JiangsuHW:45832	113,000 population served	2010
JiangsuHW:45846	113,000 population served	2010
GuangxiHW:47165	113,000 population served	2010
YunnanHW:47452	113,000 population served	2010
SichuanHW:47370	112,500 population served	2010
LiaoningHW:45561	112,000 population served	2010
FujianHW:46255	112,000 population served	2010
HubeiHW:46793	112,000 population served	2010
YunnanHW:47487	112,000 population served	2010
GansuHW:47571	112,000 population served	2010
SichuanHW:47322	111,800 population served	2010
HenanHW:46717	111,200 population served	2010
TianjinHW:45219	110,000 population served	2010
HebeiHW:45250	110,000 population served	2010
LiaoningHW:45564	110,000 population served	2010
LiaoningHW:45620	110,000 population served	2010
HeilongjiangHW:45704	110,000 population served	2010
JiangsuHW:45825	110,000 population served	2010
JiangsuHW:45921	110,000 population served	2010
JiangsuHW:45952	110,000 population served	2010
ZhejiangHW:46119	110,000 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.