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
LiaoningHW:45643	133,000 population served	2010
HenanHW:46635	132,400 population served	2010
HunanHW:46939	132,400 population served	2010
YunnanHW:47467	132,100 population served	2010
ShanxiHW:45452	132,000 population served	2010
Nei MongolHW:45536	132,000 population served	2010
JiangsuHW:45760	132,000 population served	2010
JiangsuHW:45801	132,000 population served	2010
FujianHW:46284	132,000 population served	2010
HenanHW:46688	132,000 population served	2010
HunanHW:46858	132,000 population served	2010
HunanHW:46898	132,000 population served	2010
HunanHW:46907	132,000 population served	2010
HainanHW:47255	132,000 population served	2010
ChongqingHW:47290	132,000 population served	2010
Ningxia HuiHW:47586	132,000 population served	2010
HenanHW:46704	131,800 population served	2010
HenanHW:46586	131,500 population served	2010
HenanHW:46667	131,000 population served	2010
GuangdongHW:46948	130,300 population served	2010
BeijingHW:45175	130,000 population served	2010
TianjinHW:45216	130,000 population served	2010
ShanxiHW:45420	130,000 population served	2010
LiaoningHW:45572	130,000 population served	2010
LiaoningHW:45591	130,000 population served	2010
LiaoningHW:45618	130,000 population served	2010
JilinHW:45658	130,000 population served	2010
JilinHW:45671	130,000 population served	2010
HeilongjiangHW:45700	130,000 population served	2010
JiangsuHW:45806	130,000 population served	2010
AnhuiHW:46190	130,000 population served	2010
ShandongHW:46378	130,000 population served	2010
ShandongHW:46398	130,000 population served	2010
ShandongHW:46417	130,000 population served	2010
ShandongHW:46440	130,000 population served	2010
HenanHW:46585	130,000 population served	2010
HubeiHW:46748	130,000 population served	2010
HubeiHW:46759	130,000 population served	2010
HubeiHW:46818	130,000 population served	2010
HunanHW:46874	130,000 population served	2010
GuangdongHW:47015	130,000 population served	2010
GuangdongHW:47136	130,000 population served	2010
HainanHW:47246	130,000 population served	2010
ChongqingHW:47274	130,000 population served	2010
ChongqingHW:47292	130,000 population served	2010
ChongqingHW:47296	130,000 population served	2010
ChongqingHW:47306	130,000 population served	2010
YunnanHW:47466	130,000 population served	2010
SichuanHW:47345	129,800 population served	2010
HebeiHW:45332	129,600 population served	2010
HunanHW:46844	129,400 population served	2010
GansuHW:47572	128,800 population served	2010
HenanHW:46692	128,700 population served	2010
GuangdongHW:47066	128,500 population served	2010
LiaoningHW:45592	128,000 population served	2010
HubeiHW:46787	128,000 population served	2010
HunanHW:46832	128,000 population served	2010
ShandongHW:46420	126,900 population served	2010
HunanHW:46902	126,800 population served	2010
ShaanxiHW:47556	126,800 population served	2010
HunanHW:46885	126,600 population served	2010
HubeiHW:46810	126,300 population served	2010
LiaoningHW:45625	126,000 population served	2010
GuangdongHW:47052	125,900 population served	2010
ShandongHW:46565	125,800 population served	2010
Xinjiang UygurHW:47615	125,400 population served	2010
GuangdongHW:47116	125,200 population served	2010
Nei MongolHW:45549	125,000 population served	2010
LiaoningHW:45602	125,000 population served	2010
ZhejiangHW:46095	125,000 population served	2010
ShandongHW:46563	125,000 population served	2010
GuangdongHW:47106	125,000 population served	2010
GuizhouHW:47407	125,000 population served	2010
HubeiHW:46760	123,400 population served	2010
JiangxiHW:46357	123,000 population served	2010
GuangxiHW:47196	123,000 population served	2010
SichuanHW:47323	123,000 population served	2010
YunnanHW:47447	123,000 population served	2010
AnhuiHW:46172	122,000 population served	2010
GuangxiHW:47189	122,000 population served	2010
SichuanHW:47398	122,000 population served	2010
HubeiHW:46799	121,000 population served	2010
GuangdongHW:46950	121,000 population served	2010
GuizhouHW:47400	120,600 population served	2010
BeijingHW:45163	120,000 population served	2010
BeijingHW:45164	120,000 population served	2010
BeijingHW:45180	120,000 population served	2010
BeijingHW:45188	120,000 population served	2010
TianjinHW:45207	120,000 population served	2010
HebeiHW:45281	120,000 population served	2010
HebeiHW:45282	120,000 population served	2010
HebeiHW:45289	120,000 population served	2010
HebeiHW:45340	120,000 population served	2010
HebeiHW:45371	120,000 population served	2010
LiaoningHW:45629	120,000 population served	2010
JiangsuHW:45798	120,000 population served	2010
JiangsuHW:45809	120,000 population served	2010
JiangsuHW:45811	120,000 population served	2010
JiangsuHW:45831	120,000 population served	2010
JiangsuHW:45856	120,000 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.