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
HubeiHW:46817	18,000 population served	2010
Ningxia HuiHW:47599	16,700 population served	2010
Ningxia HuiHW:47594	16,400 population served	2010
ShandongHW:46496	16,200 population served	2010
JiangsuHW:45868	16,000 population served	2010
ZhejiangHW:46056	16,000 population served	2010
BeijingHW:45179	15,000 population served	2010
HebeiHW:45303	15,000 population served	2010
JiangsuHW:45843	15,000 population served	2010
JiangsuHW:45867	15,000 population served	2010
JiangsuHW:45955	15,000 population served	2010
JiangsuHW:45957	15,000 population served	2010
ChongqingHW:47288	15,000 population served	2010
ShaanxiHW:47514	15,000 population served	2010
JiangsuHW:45884	14,000 population served	2010
YunnanHW:47481	14,000 population served	2010
ZhejiangHW:46049	13,100 population served	2010
JiangsuHW:45956	13,000 population served	2010
SichuanHW:47338	12,500 population served	2010
JiangsuHW:45845	12,000 population served	2010
JiangsuHW:45919	12,000 population served	2010
JiangsuHW:45959	12,000 population served	2010
GuangdongHW:47040	12,000 population served	2010
BeijingHW:45156	11,000 population served	2010
HebeiHW:45380	11,000 population served	2010
JiangsuHW:45960	11,000 population served	2010
GuangdongHW:47038	11,000 population served	2010
ShaanxiHW:47516	10,600 population served	2010
BeijingHW:45184	10,000 population served	2010
TianjinHW:45206	10,000 population served	2010
JiangsuHW:45824	10,000 population served	2010
JiangsuHW:45855	10,000 population served	2010
JiangsuHW:45876	10,000 population served	2010
JiangsuHW:45903	10,000 population served	2010
JiangsuHW:45908	10,000 population served	2010
JiangsuHW:45918	10,000 population served	2010
JiangsuHW:45953	10,000 population served	2010
JiangsuHW:45966	10,000 population served	2010
JiangsuHW:45997	10,000 population served	2010
JiangsuHW:46023	10,000 population served	2010
ZhejiangHW:46078	10,000 population served	2010
ZhejiangHW:46110	10,000 population served	2010
GuangxiHW:47169	10,000 population served	2010
GuangxiHW:47209	10,000 population served	2010
HainanHW:47258	10,000 population served	2010
HainanHW:47259	10,000 population served	2010
HubeiHW:46753	9,600 population served	2010
HubeiHW:46750	8,400 population served	2010
HubeiHW:46751	8,400 population served	2010
JiangsuHW:45828	8,000 population served	2010
JiangsuHW:45829	8,000 population served	2010
JiangsuHW:45830	8,000 population served	2010
JiangsuHW:45907	8,000 population served	2010
JiangsuHW:45929	8,000 population served	2010
JiangsuHW:45976	8,000 population served	2010
ZhejiangHW:46083	8,000 population served	2010
ZhejiangHW:46107	8,000 population served	2010
HunanHW:46820	8,000 population served	2010
HainanHW:47240	8,000 population served	2010
ChongqingHW:47295	8,000 population served	2010
ChongqingHW:47300	8,000 population served	2010
HubeiHW:46754	7,600 population served	2010
GuangdongHW:47039	7,400 population served	2010
SichuanHW:47337	7,300 population served	2010
JiangsuHW:45775	7,000 population served	2010
JiangsuHW:46016	7,000 population served	2010
ChongqingHW:47297	7,000 population served	2010
GuangdongHW:47041	6,900 population served	2010
GuizhouHW:47422	6,800 population served	2010
GuangdongHW:47111	6,300 population served	2010
JiangsuHW:45961	6,000 population served	2010
JiangsuHW:45964	6,000 population served	2010
GuangdongHW:47037	6,000 population served	2010
ChongqingHW:47267	6,000 population served	2010
ZhejiangHW:46075	5,000 population served	2010
ZhejiangHW:46106	5,000 population served	2010
ZhejiangHW:46132	4,600 population served	2010
ZhejiangHW:46127	4,000 population served	2010
ZhejiangHW:46164	4,000 population served	2010
ZhejiangHW:46131	3,100 population served	2010
ZhejiangHW:46101	3,000 population served	2010
ZhejiangHW:46129	3,000 population served	2010
ZhejiangHW:46143	3,000 population served	2010
ZhejiangHW:46102	2,200 population served	2010
JiangsuHW:45935	2,000 population served	2010
ZhejiangHW:46089	2,000 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.