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:45598	160,000 population served	2010
ShanghaiHW:45736	160,000 population served	2010
JiangsuHW:45794	160,000 population served	2010
JiangsuHW:45808	160,000 population served	2010
JiangsuHW:45879	160,000 population served	2010
JiangsuHW:45975	160,000 population served	2010
JiangsuHW:45991	160,000 population served	2010
ZhejiangHW:46041	160,000 population served	2010
ZhejiangHW:46058	160,000 population served	2010
ZhejiangHW:46067	160,000 population served	2010
ZhejiangHW:46150	160,000 population served	2010
AnhuiHW:46170	160,000 population served	2010
AnhuiHW:46203	160,000 population served	2010
AnhuiHW:46205	160,000 population served	2010
AnhuiHW:46233	160,000 population served	2010
JiangxiHW:46312	160,000 population served	2010
JiangxiHW:46334	160,000 population served	2010
JiangxiHW:46365	160,000 population served	2010
ShandongHW:46428	160,000 population served	2010
ShandongHW:46433	160,000 population served	2010
ShandongHW:46449	160,000 population served	2010
ShandongHW:46467	160,000 population served	2010
HenanHW:46696	160,000 population served	2010
GuangdongHW:46955	160,000 population served	2010
GuangdongHW:46974	160,000 population served	2010
GuangdongHW:46983	160,000 population served	2010
GuangdongHW:47141	160,000 population served	2010
GuangxiHW:47188	160,000 population served	2010
GuangxiHW:47206	160,000 population served	2010
ChongqingHW:47277	160,000 population served	2010
ChongqingHW:47287	160,000 population served	2010
ChongqingHW:47298	160,000 population served	2010
Ningxia HuiHW:47592	160,000 population served	2010
GuizhouHW:47423	159,000 population served	2010
HunanHW:46838	158,000 population served	2010
ShandongHW:46538	157,600 population served	2010
HubeiHW:46755	157,600 population served	2010
Xinjiang UygurHW:47624	157,000 population served	2010
HeilongjiangHW:45699	156,000 population served	2010
HenanHW:46685	155,000 population served	2010
HubeiHW:46776	155,000 population served	2010
HunanHW:46881	154,600 population served	2010
HenanHW:46647	154,000 population served	2010
HunanHW:46918	154,000 population served	2010
HubeiHW:46792	153,700 population served	2010
HunanHW:46916	153,300 population served	2010
HubeiHW:46749	153,100 population served	2010
JiangxiHW:46370	153,000 population served	2010
HunanHW:46851	153,000 population served	2010
HebeiHW:45322	152,000 population served	2010
HenanHW:46590	152,000 population served	2010
HunanHW:46926	152,000 population served	2010
GuangdongHW:46944	152,000 population served	2010
GuangdongHW:47076	152,000 population served	2010
HunanHW:46886	151,100 population served	2010
HenanHW:46678	151,000 population served	2010
BeijingHW:45162	150,000 population served	2010
BeijingHW:45178	150,000 population served	2010
TianjinHW:45220	150,000 population served	2010
HebeiHW:45305	150,000 population served	2010
ShanxiHW:45419	150,000 population served	2010
ShanxiHW:45425	150,000 population served	2010
LiaoningHW:45615	150,000 population served	2010
LiaoningHW:45616	150,000 population served	2010
HeilongjiangHW:45707	150,000 population served	2010
HeilongjiangHW:45714	150,000 population served	2010
JiangsuHW:45777	150,000 population served	2010
JiangsuHW:45778	150,000 population served	2010
JiangsuHW:45799	150,000 population served	2010
JiangsuHW:45873	150,000 population served	2010
JiangsuHW:45972	150,000 population served	2010
JiangsuHW:45982	150,000 population served	2010
JiangsuHW:45983	150,000 population served	2010
JiangsuHW:45993	150,000 population served	2010
JiangsuHW:45994	150,000 population served	2010
JiangsuHW:46021	150,000 population served	2010
ZhejiangHW:46036	150,000 population served	2010
ZhejiangHW:46037	150,000 population served	2010
ZhejiangHW:46038	150,000 population served	2010
ZhejiangHW:46052	150,000 population served	2010
ZhejiangHW:46072	150,000 population served	2010
ZhejiangHW:46077	150,000 population served	2010
ZhejiangHW:46100	150,000 population served	2010
ZhejiangHW:46123	150,000 population served	2010
AnhuiHW:46187	150,000 population served	2010
AnhuiHW:46204	150,000 population served	2010
AnhuiHW:46231	150,000 population served	2010
AnhuiHW:46234	150,000 population served	2010
FujianHW:46250	150,000 population served	2010
JiangxiHW:46305	150,000 population served	2010
JiangxiHW:46306	150,000 population served	2010
JiangxiHW:46324	150,000 population served	2010
JiangxiHW:46369	150,000 population served	2010
ShandongHW:46392	150,000 population served	2010
ShandongHW:46421	150,000 population served	2010
ShandongHW:46447	150,000 population served	2010
ShandongHW:46453	150,000 population served	2010
ShandongHW:46464	150,000 population served	2010
ShandongHW:46524	150,000 population served	2010
HenanHW:46584	150,000 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.