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
HebeiHW:45312	61,200 population served	2010
GuangdongHW:47056	61,200 population served	2010
LiaoningHW:45609	61,000 population served	2010
JilinHW:45654	61,000 population served	2010
JiangsuHW:45898	61,000 population served	2010
JiangxiHW:46323	61,000 population served	2010
JiangxiHW:46351	61,000 population served	2010
HunanHW:46890	61,000 population served	2010
GuangdongHW:47025	61,000 population served	2010
GuangdongHW:47137	61,000 population served	2010
GuangxiHW:47214	61,000 population served	2010
ChongqingHW:47269	61,000 population served	2010
GuizhouHW:47425	61,000 population served	2010
GansuHW:47561	61,000 population served	2010
HenanHW:46640	60,800 population served	2010
YunnanHW:47473	60,700 population served	2010
HenanHW:46615	60,600 population served	2010
HebeiHW:45257	60,500 population served	2010
HebeiHW:45313	60,500 population served	2010
BeijingHW:45169	60,000 population served	2010
BeijingHW:45176	60,000 population served	2010
BeijingHW:45181	60,000 population served	2010
HebeiHW:45224	60,000 population served	2010
HebeiHW:45342	60,000 population served	2010
HebeiHW:45346	60,000 population served	2010
HebeiHW:45353	60,000 population served	2010
HebeiHW:45388	60,000 population served	2010
ShanxiHW:45417	60,000 population served	2010
ShanxiHW:45426	60,000 population served	2010
Nei MongolHW:45512	60,000 population served	2010
Nei MongolHW:45519	60,000 population served	2010
LiaoningHW:45584	60,000 population served	2010
JiangsuHW:45820	60,000 population served	2010
JiangsuHW:45827	60,000 population served	2010
JiangsuHW:45933	60,000 population served	2010
JiangsuHW:46015	60,000 population served	2010
JiangxiHW:46356	60,000 population served	2010
ShandongHW:46379	60,000 population served	2010
ShandongHW:46389	60,000 population served	2010
ShandongHW:46415	60,000 population served	2010
ShandongHW:46451	60,000 population served	2010
HubeiHW:46814	60,000 population served	2010
HunanHW:46849	60,000 population served	2010
HunanHW:46859	60,000 population served	2010
HunanHW:46924	60,000 population served	2010
GuangdongHW:47087	60,000 population served	2010
GuangdongHW:47138	60,000 population served	2010
GuangxiHW:47167	60,000 population served	2010
GuangxiHW:47207	60,000 population served	2010
GuangxiHW:47230	60,000 population served	2010
GuangxiHW:47236	60,000 population served	2010
HainanHW:47252	60,000 population served	2010
ChongqingHW:47305	60,000 population served	2010
GuizhouHW:47409	60,000 population served	2010
YunnanHW:47449	60,000 population served	2010
GansuHW:47568	59,500 population served	2010
HunanHW:46870	59,200 population served	2010
HebeiHW:45339	59,000 population served	2010
ShanxiHW:45450	59,000 population served	2010
FujianHW:46245	59,000 population served	2010
HenanHW:46610	59,000 population served	2010
HenanHW:46625	59,000 population served	2010
HubeiHW:46742	59,000 population served	2010
HainanHW:47257	59,000 population served	2010
JiangxiHW:46329	58,700 population served	2010
HenanHW:46631	58,600 population served	2010
ShaanxiHW:47525	58,600 population served	2010
HenanHW:46600	58,500 population served	2010
HenanHW:46630	58,500 population served	2010
GuangdongHW:47010	58,500 population served	2010
HenanHW:46642	58,200 population served	2010
GuangdongHW:47113	58,100 population served	2010
YunnanHW:47468	58,100 population served	2010
BeijingHW:45193	58,000 population served	2010
HebeiHW:45238	58,000 population served	2010
HebeiHW:45273	58,000 population served	2010
HebeiHW:45286	58,000 population served	2010
HebeiHW:45298	58,000 population served	2010
JiangsuHW:45826	58,000 population served	2010
JiangsuHW:45974	58,000 population served	2010
HenanHW:46608	58,000 population served	2010
HenanHW:46626	58,000 population served	2010
Nei MongolHW:45556	57,500 population served	2010
HenanHW:46614	57,500 population served	2010
HebeiHW:45259	57,300 population served	2010
HebeiHW:45297	57,000 population served	2010
Nei MongolHW:45538	57,000 population served	2010
ShandongHW:46494	57,000 population served	2010
HenanHW:46641	57,000 population served	2010
GuangxiHW:47176	57,000 population served	2010
SichuanHW:47363	56,500 population served	2010
HenanHW:46676	56,100 population served	2010
HunanHW:46842	56,100 population served	2010
HebeiHW:45287	56,000 population served	2010
ShanxiHW:45423	56,000 population served	2010
ShanxiHW:45483	56,000 population served	2010
JiangsuHW:45920	56,000 population served	2010
GuangdongHW:47109	56,000 population served	2010
GuangxiHW:47213	56,000 population served	2010
GuizhouHW:47427	56,000 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.