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
GuangdongHW:47001	49,000 population served	2010
Xinjiang UygurHW:47633	49,000 population served	2010
FujianHW:46281	48,900 population served	2010
SichuanHW:47361	48,800 population served	2010
HunanHW:46911	48,500 population served	2010
ShaanxiHW:47522	48,400 population served	2010
HebeiHW:45314	48,000 population served	2010
HebeiHW:45387	48,000 population served	2010
HebeiHW:45391	48,000 population served	2010
Nei MongolHW:45497	48,000 population served	2010
ZhejiangHW:46152	48,000 population served	2010
AnhuiHW:46227	48,000 population served	2010
ShandongHW:46388	48,000 population served	2010
ShandongHW:46505	48,000 population served	2010
ShandongHW:46550	48,000 population served	2010
GuizhouHW:47417	48,000 population served	2010
QinghaiHW:47582	48,000 population served	2010
HenanHW:46682	47,300 population served	2010
HebeiHW:45385	47,000 population served	2010
GuangxiHW:47231	47,000 population served	2010
SichuanHW:47388	47,000 population served	2010
Nei MongolHW:45516	46,700 population served	2010
JiangxiHW:46326	46,700 population served	2010
HubeiHW:46740	46,500 population served	2010
HebeiHW:45318	46,400 population served	2010
ShandongHW:46540	46,300 population served	2010
Xinjiang UygurHW:47628	46,300 population served	2010
HebeiHW:45262	46,200 population served	2010
HebeiHW:45233	46,000 population served	2010
ShanxiHW:45457	46,000 population served	2010
FujianHW:46261	46,000 population served	2010
GuangdongHW:46941	46,000 population served	2010
GuangxiHW:47161	46,000 population served	2010
YunnanHW:47450	46,000 population served	2010
YunnanHW:47476	46,000 population served	2010
ShaanxiHW:47521	46,000 population served	2010
ShaanxiHW:47551	46,000 population served	2010
HebeiHW:45377	45,000 population served	2010
HebeiHW:45379	45,000 population served	2010
HebeiHW:45394	45,000 population served	2010
JiangsuHW:45773	45,000 population served	2010
JiangsuHW:45844	45,000 population served	2010
JiangsuHW:46008	45,000 population served	2010
ZhejiangHW:46162	45,000 population served	2010
HebeiHW:45308	44,300 population served	2010
SichuanHW:47391	44,300 population served	2010
Nei MongolHW:45500	44,000 population served	2010
Nei MongolHW:45534	43,800 population served	2010
ShanxiHW:45444	43,500 population served	2010
HebeiHW:45409	43,300 population served	2010
HebeiHW:45324	43,000 population served	2010
JiangsuHW:45860	43,000 population served	2010
ZhejiangHW:46027	43,000 population served	2010
ZhejiangHW:46158	43,000 population served	2010
GuangdongHW:46991	43,000 population served	2010
HenanHW:46687	42,800 population served	2010
HunanHW:46848	42,600 population served	2010
YunnanHW:47456	42,500 population served	2010
GansuHW:47557	42,200 population served	2010
BeijingHW:45165	42,000 population served	2010
HebeiHW:45327	42,000 population served	2010
ShanxiHW:45431	42,000 population served	2010
ShanxiHW:45479	42,000 population served	2010
Nei MongolHW:45493	42,000 population served	2010
Nei MongolHW:45515	42,000 population served	2010
JiangsuHW:45878	42,000 population served	2010
ZhejiangHW:46024	42,000 population served	2010
ZhejiangHW:46059	42,000 population served	2010
ZhejiangHW:46114	42,000 population served	2010
GuangxiHW:47163	42,000 population served	2010
GuangxiHW:47173	42,000 population served	2010
Ningxia HuiHW:47589	42,000 population served	2010
Xinjiang UygurHW:47612	42,000 population served	2010
GuangxiHW:47175	41,900 population served	2010
HainanHW:47248	41,400 population served	2010
SichuanHW:47384	41,100 population served	2010
HebeiHW:45255	41,000 population served	2010
ShanxiHW:45432	41,000 population served	2010
Nei MongolHW:45552	41,000 population served	2010
HubeiHW:46812	41,000 population served	2010
HenanHW:46659	40,300 population served	2010
YunnanHW:47474	40,300 population served	2010
TianjinHW:45212	40,000 population served	2010
HebeiHW:45240	40,000 population served	2010
HebeiHW:45261	40,000 population served	2010
HebeiHW:45280	40,000 population served	2010
HebeiHW:45306	40,000 population served	2010
HebeiHW:45356	40,000 population served	2010
ShanxiHW:45428	40,000 population served	2010
Nei MongolHW:45527	40,000 population served	2010
ZhejiangHW:46025	40,000 population served	2010
ZhejiangHW:46029	40,000 population served	2010
ZhejiangHW:46088	40,000 population served	2010
GuangdongHW:46945	40,000 population served	2010
GuangdongHW:47009	40,000 population served	2010
GuangxiHW:47224	40,000 population served	2010
GuangxiHW:47226	40,000 population served	2010
SichuanHW:47379	39,900 population served	2010
Ningxia HuiHW:47595	39,900 population served	2010
HebeiHW:45398	39,700 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.