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
YunnanHW:47440	56,000 population served	2010
Xinjiang UygurHW:47631	56,000 population served	2010
ShaanxiHW:47527	55,600 population served	2010
HunanHW:46841	55,300 population served	2010
HunanHW:46861	55,300 population served	2010
HebeiHW:45235	55,000 population served	2010
HebeiHW:45263	55,000 population served	2010
Nei MongolHW:45511	55,000 population served	2010
Nei MongolHW:45557	55,000 population served	2010
HubeiHW:46747	55,000 population served	2010
HubeiHW:46816	55,000 population served	2010
GuangxiHW:47174	55,000 population served	2010
SichuanHW:47372	55,000 population served	2010
GuizhouHW:47429	55,000 population served	2010
HunanHW:46896	54,900 population served	2010
Xinjiang UygurHW:47630	54,900 population served	2010
HainanHW:47254	54,800 population served	2010
SichuanHW:47357	54,300 population served	2010
ShanxiHW:45466	54,200 population served	2010
ShandongHW:46470	54,000 population served	2010
HubeiHW:46790	54,000 population served	2010
SichuanHW:47382	53,300 population served	2010
JiangxiHW:46338	53,200 population served	2010
HebeiHW:45268	53,000 population served	2010
HebeiHW:45299	53,000 population served	2010
JiangsuHW:45885	53,000 population served	2010
FujianHW:46289	53,000 population served	2010
JiangxiHW:46339	53,000 population served	2010
ShanxiHW:45446	52,900 population served	2010
SichuanHW:47328	52,900 population served	2010
GuizhouHW:47433	52,900 population served	2010
Xinjiang UygurHW:47620	52,800 population served	2010
HenanHW:46652	52,600 population served	2010
SichuanHW:47324	52,200 population served	2010
ShanxiHW:45441	52,000 population served	2010
LiaoningHW:45628	52,000 population served	2010
JilinHW:45661	52,000 population served	2010
ShanghaiHW:45731	52,000 population served	2010
JiangsuHW:45769	52,000 population served	2010
AnhuiHW:46217	52,000 population served	2010
FujianHW:46294	52,000 population served	2010
GuangdongHW:47059	52,000 population served	2010
GuangdongHW:47114	52,000 population served	2010
ChongqingHW:47271	52,000 population served	2010
GuizhouHW:47435	52,000 population served	2010
HenanHW:46673	51,700 population served	2010
SichuanHW:47358	51,300 population served	2010
ShanxiHW:45484	51,200 population served	2010
GuangdongHW:47053	51,200 population served	2010
LiaoningHW:45587	51,000 population served	2010
ShanghaiHW:45751	51,000 population served	2010
ZhejiangHW:46130	51,000 population served	2010
JiangxiHW:46336	51,000 population served	2010
ShandongHW:46399	51,000 population served	2010
HenanHW:46664	51,000 population served	2010
HunanHW:46847	51,000 population served	2010
HunanHW:46893	51,000 population served	2010
ShaanxiHW:47526	51,000 population served	2010
HenanHW:46660	50,800 population served	2010
ShanxiHW:45461	50,500 population served	2010
BeijingHW:45186	50,000 population served	2010
BeijingHW:45191	50,000 population served	2010
TianjinHW:45211	50,000 population served	2010
TianjinHW:45218	50,000 population served	2010
TianjinHW:45221	50,000 population served	2010
HebeiHW:45230	50,000 population served	2010
HebeiHW:45241	50,000 population served	2010
HebeiHW:45284	50,000 population served	2010
HebeiHW:45291	50,000 population served	2010
HebeiHW:45307	50,000 population served	2010
HebeiHW:45365	50,000 population served	2010
HebeiHW:45383	50,000 population served	2010
HebeiHW:45386	50,000 population served	2010
HebeiHW:45399	50,000 population served	2010
ShanxiHW:45429	50,000 population served	2010
HeilongjiangHW:45706	50,000 population served	2010
JiangsuHW:45768	50,000 population served	2010
JiangsuHW:45796	50,000 population served	2010
JiangsuHW:45931	50,000 population served	2010
JiangsuHW:45979	50,000 population served	2010
JiangsuHW:46006	50,000 population served	2010
JiangsuHW:46014	50,000 population served	2010
ZhejiangHW:46048	50,000 population served	2010
FujianHW:46252	50,000 population served	2010
JiangxiHW:46307	50,000 population served	2010
JiangxiHW:46325	50,000 population served	2010
JiangxiHW:46340	50,000 population served	2010
JiangxiHW:46344	50,000 population served	2010
JiangxiHW:46352	50,000 population served	2010
ShandongHW:46401	50,000 population served	2010
ShandongHW:46578	50,000 population served	2010
HubeiHW:46744	50,000 population served	2010
GuangdongHW:47060	50,000 population served	2010
GuangdongHW:47133	50,000 population served	2010
GuangxiHW:47215	50,000 population served	2010
GuizhouHW:47421	50,000 population served	2010
YunnanHW:47453	50,000 population served	2010
YunnanHW:47461	49,600 population served	2010
YunnanHW:47479	49,200 population served	2010
HenanHW:46689	49,000 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.