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
HenanHW:46666	150,000 population served	2010
HubeiHW:46774	150,000 population served	2010
HunanHW:46852	150,000 population served	2010
HunanHW:46855	150,000 population served	2010
GuangdongHW:47068	150,000 population served	2010
GuangdongHW:47132	150,000 population served	2010
HainanHW:47242	150,000 population served	2010
ChongqingHW:47276	150,000 population served	2010
ChongqingHW:47282	150,000 population served	2010
ChongqingHW:47289	150,000 population served	2010
Xinjiang UygurHW:47634	150,000 population served	2010
JilinHW:45657	149,800 population served	2010
HunanHW:46899	149,500 population served	2010
JiangsuHW:45866	149,000 population served	2010
ShandongHW:46570	149,000 population served	2010
HubeiHW:46775	149,000 population served	2010
GuangdongHW:47061	148,700 population served	2010
HubeiHW:46764	148,300 population served	2010
HebeiHW:45276	148,000 population served	2010
HenanHW:46657	148,000 population served	2010
SichuanHW:47326	148,000 population served	2010
JiangxiHW:46316	147,000 population served	2010
HubeiHW:46771	147,000 population served	2010
SichuanHW:47378	146,400 population served	2010
HenanHW:46603	146,200 population served	2010
LiaoningHW:45571	146,000 population served	2010
JilinHW:45676	146,000 population served	2010
JiangsuHW:45803	146,000 population served	2010
YunnanHW:47483	146,000 population served	2010
ShandongHW:46518	145,800 population served	2010
ShandongHW:46548	145,600 population served	2010
ShandongHW:46562	145,000 population served	2010
ChongqingHW:47301	144,000 population served	2010
ShandongHW:46528	143,700 population served	2010
HunanHW:46837	142,100 population served	2010
AnhuiHW:46196	142,000 population served	2010
AnhuiHW:46198	142,000 population served	2010
HenanHW:46679	142,000 population served	2010
GuangdongHW:47058	142,000 population served	2010
GuangdongHW:47112	142,000 population served	2010
BeijingHW:45195	140,000 population served	2010
TianjinHW:45198	140,000 population served	2010
TianjinHW:45201	140,000 population served	2010
HebeiHW:45242	140,000 population served	2010
HebeiHW:45315	140,000 population served	2010
HebeiHW:45338	140,000 population served	2010
HebeiHW:45389	140,000 population served	2010
Nei MongolHW:45537	140,000 population served	2010
LiaoningHW:45636	140,000 population served	2010
JiangsuHW:45810	140,000 population served	2010
JiangsuHW:45819	140,000 population served	2010
JiangsuHW:45973	140,000 population served	2010
ZhejiangHW:46098	140,000 population served	2010
ZhejiangHW:46105	140,000 population served	2010
AnhuiHW:46206	140,000 population served	2010
AnhuiHW:46210	140,000 population served	2010
AnhuiHW:46222	140,000 population served	2010
FujianHW:46259	140,000 population served	2010
FujianHW:46263	140,000 population served	2010
JiangxiHW:46328	140,000 population served	2010
JiangxiHW:46330	140,000 population served	2010
JiangxiHW:46341	140,000 population served	2010
ShandongHW:46400	140,000 population served	2010
ShandongHW:46403	140,000 population served	2010
ShandongHW:46406	140,000 population served	2010
ShandongHW:46418	140,000 population served	2010
ShandongHW:46432	140,000 population served	2010
ShandongHW:46443	140,000 population served	2010
ShandongHW:46519	140,000 population served	2010
ShandongHW:46544	140,000 population served	2010
HenanHW:46588	140,000 population served	2010
HenanHW:46662	140,000 population served	2010
GuangdongHW:46969	140,000 population served	2010
GuangdongHW:47143	140,000 population served	2010
GuangxiHW:47168	140,000 population served	2010
GuangxiHW:47212	140,000 population served	2010
SichuanHW:47320	140,000 population served	2010
QinghaiHW:47577	140,000 population served	2010
ShanghaiHW:45729	138,000 population served	2010
HunanHW:46884	137,400 population served	2010
HubeiHW:46780	137,200 population served	2010
HeilongjiangHW:45690	137,000 population served	2010
JiangsuHW:45797	137,000 population served	2010
HubeiHW:46796	137,000 population served	2010
GuangdongHW:47057	136,700 population served	2010
ShandongHW:46558	136,600 population served	2010
HenanHW:46648	136,400 population served	2010
HebeiHW:45372	136,000 population served	2010
FujianHW:46275	136,000 population served	2010
HubeiHW:46786	136,000 population served	2010
GuangdongHW:47006	136,000 population served	2010
FujianHW:46267	135,200 population served	2010
ShanxiHW:45413	135,000 population served	2010
FujianHW:46282	135,000 population served	2010
HunanHW:46931	135,000 population served	2010
GuizhouHW:47431	135,000 population served	2010
SichuanHW:47308	134,400 population served	2010
HenanHW:46597	134,100 population served	2010
ShandongHW:46482	134,000 population served	2010
HenanHW:46617	134,000 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.