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
HunanHW:46869	100,000 population served	2010
GuangdongHW:46972	100,000 population served	2010
GuangdongHW:46982	100,000 population served	2010
GuangdongHW:47013	100,000 population served	2010
GuangdongHW:47017	100,000 population served	2010
GuangdongHW:47124	100,000 population served	2010
GuangdongHW:47130	100,000 population served	2010
GuangdongHW:47150	100,000 population served	2010
GuangxiHW:47181	100,000 population served	2010
GuangxiHW:47192	100,000 population served	2010
GuangxiHW:47225	100,000 population served	2010
HainanHW:47244	100,000 population served	2010
HainanHW:47250	100,000 population served	2010
ChongqingHW:47278	100,000 population served	2010
ChongqingHW:47286	100,000 population served	2010
ChongqingHW:47291	100,000 population served	2010
ChongqingHW:47302	100,000 population served	2010
SichuanHW:47312	100,000 population served	2010
YunnanHW:47485	100,000 population served	2010
GansuHW:47569	100,000 population served	2010
AnhuiHW:46181	99,800 population served	2010
LiaoningHW:45579	99,700 population served	2010
ShanxiHW:45456	99,300 population served	2010
HubeiHW:46805	99,000 population served	2010
ShandongHW:46380	98,600 population served	2010
GuangxiHW:47229	98,600 population served	2010
ShandongHW:46436	98,500 population served	2010
HenanHW:46656	98,400 population served	2010
HebeiHW:45285	98,000 population served	2010
HebeiHW:45295	98,000 population served	2010
HebeiHW:45316	98,000 population served	2010
ZhejiangHW:46103	98,000 population served	2010
HenanHW:46715	98,000 population served	2010
HenanHW:46711	97,800 population served	2010
SichuanHW:47340	97,100 population served	2010
JiangsuHW:45858	97,000 population served	2010
FujianHW:46258	97,000 population served	2010
Xinjiang UygurHW:47626	97,000 population served	2010
HenanHW:46609	96,600 population served	2010
JilinHW:45659	96,500 population served	2010
GuangxiHW:47160	96,300 population served	2010
GuangdongHW:47085	96,200 population served	2010
SichuanHW:47396	96,100 population served	2010
ShanghaiHW:45739	96,000 population served	2010
HenanHW:46703	96,000 population served	2010
FujianHW:46280	95,600 population served	2010
HebeiHW:45321	95,400 population served	2010
Xinjiang UygurHW:47627	95,400 population served	2010
FujianHW:46283	95,300 population served	2010
GuangdongHW:47084	95,200 population served	2010
HebeiHW:45288	95,000 population served	2010
LiaoningHW:45632	95,000 population served	2010
ZhejiangHW:46045	95,000 population served	2010
FujianHW:46262	95,000 population served	2010
HenanHW:46596	95,000 population served	2010
HubeiHW:46781	95,000 population served	2010
HenanHW:46646	94,600 population served	2010
JilinHW:45670	94,500 population served	2010
ChongqingHW:47303	94,000 population served	2010
ShanxiHW:45468	93,500 population served	2010
HenanHW:46599	93,500 population served	2010
HenanHW:46698	93,400 population served	2010
JiangsuHW:45891	93,000 population served	2010
FujianHW:46285	93,000 population served	2010
HubeiHW:46788	93,000 population served	2010
GuizhouHW:47412	93,000 population served	2010
YunnanHW:47464	93,000 population served	2010
Xinjiang UygurHW:47621	93,000 population served	2010
Xinjiang UygurHW:47636	93,000 population served	2010
Nei MongolHW:45496	92,000 population served	2010
GuangdongHW:47047	92,000 population served	2010
GuangxiHW:47193	92,000 population served	2010
ChongqingHW:47281	92,000 population served	2010
ShaanxiHW:47513	92,000 population served	2010
ShanxiHW:45462	91,800 population served	2010
HenanHW:46695	91,500 population served	2010
HeilongjiangHW:45711	91,300 population served	2010
JiangsuHW:45850	91,100 population served	2010
HebeiHW:45319	91,000 population served	2010
HebeiHW:45320	91,000 population served	2010
BeijingHW:45159	90,000 population served	2010
ShanxiHW:45430	90,000 population served	2010
ShanxiHW:45451	90,000 population served	2010
LiaoningHW:45563	90,000 population served	2010
JiangsuHW:45765	90,000 population served	2010
JiangsuHW:45781	90,000 population served	2010
JiangsuHW:45949	90,000 population served	2010
JiangsuHW:45995	90,000 population served	2010
ZhejiangHW:46085	90,000 population served	2010
ZhejiangHW:46141	90,000 population served	2010
FujianHW:46278	90,000 population served	2010
ShandongHW:46405	90,000 population served	2010
ShandongHW:46438	90,000 population served	2010
ShandongHW:46441	90,000 population served	2010
ShandongHW:46454	90,000 population served	2010
ShandongHW:46508	90,000 population served	2010
ShandongHW:46527	90,000 population served	2010
ShandongHW:46541	90,000 population served	2010
HubeiHW:46813	90,000 population served	2010
GuangdongHW:46959	90,000 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.