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
BeijingHW:45173	180,000 population served	2010
HebeiHW:45334	180,000 population served	2010
HebeiHW:45337	180,000 population served	2010
ShanxiHW:45416	180,000 population served	2010
LiaoningHW:45566	180,000 population served	2010
LiaoningHW:45638	180,000 population served	2010
JilinHW:45651	180,000 population served	2010
JilinHW:45655	180,000 population served	2010
JilinHW:45682	180,000 population served	2010
ShanghaiHW:45744	180,000 population served	2010
JiangsuHW:45927	180,000 population served	2010
ZhejiangHW:46149	180,000 population served	2010
AnhuiHW:46180	180,000 population served	2010
AnhuiHW:46214	180,000 population served	2010
AnhuiHW:46236	180,000 population served	2010
AnhuiHW:46238	180,000 population served	2010
FujianHW:46271	180,000 population served	2010
FujianHW:46272	180,000 population served	2010
JiangxiHW:46304	180,000 population served	2010
JiangxiHW:46332	180,000 population served	2010
ShandongHW:46457	180,000 population served	2010
ShandongHW:46473	180,000 population served	2010
ShandongHW:46476	180,000 population served	2010
ShandongHW:46556	180,000 population served	2010
HubeiHW:46757	180,000 population served	2010
HubeiHW:46789	180,000 population served	2010
GuangdongHW:46961	180,000 population served	2010
GuangdongHW:46968	180,000 population served	2010
GuangdongHW:46995	180,000 population served	2010
GuangdongHW:47146	180,000 population served	2010
GuangdongHW:47149	180,000 population served	2010
ChongqingHW:47275	180,000 population served	2010
ShandongHW:46579	179,500 population served	2010
YunnanHW:47454	179,500 population served	2010
AnhuiHW:46195	178,900 population served	2010
HunanHW:46876	178,300 population served	2010
Xinjiang UygurHW:47609	178,300 population served	2010
ShanghaiHW:45758	176,800 population served	2010
ShandongHW:46463	176,200 population served	2010
HunanHW:46834	176,200 population served	2010
TianjinHW:45217	176,000 population served	2010
FujianHW:46286	176,000 population served	2010
ShandongHW:46429	176,000 population served	2010
GuangdongHW:46996	176,000 population served	2010
Nei MongolHW:45495	175,000 population served	2010
HubeiHW:46804	175,000 population served	2010
HunanHW:46938	175,000 population served	2010
GuangxiHW:47208	175,000 population served	2010
HunanHW:46904	174,500 population served	2010
SichuanHW:47318	173,500 population served	2010
ZhejiangHW:46159	172,000 population served	2010
AnhuiHW:46182	172,000 population served	2010
SichuanHW:47355	170,800 population served	2010
HebeiHW:45270	170,000 population served	2010
JiangsuHW:46004	170,000 population served	2010
ZhejiangHW:46062	170,000 population served	2010
ZhejiangHW:46128	170,000 population served	2010
ShandongHW:46397	170,000 population served	2010
ShandongHW:46419	170,000 population served	2010
ShandongHW:46427	170,000 population served	2010
ShandongHW:46475	170,000 population served	2010
GuangdongHW:46953	170,000 population served	2010
HeilongjiangHW:45689	169,000 population served	2010
HeilongjiangHW:45692	169,000 population served	2010
HenanHW:46595	169,000 population served	2010
HunanHW:46875	168,700 population served	2010
JiangsuHW:45938	168,400 population served	2010
LiaoningHW:45585	168,000 population served	2010
JiangsuHW:45902	168,000 population served	2010
FujianHW:46276	168,000 population served	2010
GuangdongHW:46943	168,000 population served	2010
JilinHW:45664	167,000 population served	2010
SichuanHW:47344	166,300 population served	2010
HainanHW:47251	165,800 population served	2010
AnhuiHW:46221	165,000 population served	2010
GuangdongHW:47131	165,000 population served	2010
ChongqingHW:47307	165,000 population served	2010
YunnanHW:47478	165,000 population served	2010
GansuHW:47563	164,500 population served	2010
HebeiHW:45396	164,000 population served	2010
ShandongHW:46545	164,000 population served	2010
HunanHW:46831	164,000 population served	2010
Ningxia HuiHW:47601	164,000 population served	2010
HunanHW:46850	163,500 population served	2010
HubeiHW:46811	163,300 population served	2010
HeilongjiangHW:45697	163,000 population served	2010
JiangsuHW:45847	163,000 population served	2010
HubeiHW:46773	163,000 population served	2010
HunanHW:46914	163,000 population served	2010
GuangdongHW:47054	163,000 population served	2010
GuangxiHW:47178	163,000 population served	2010
GuangxiHW:47182	163,000 population served	2010
HunanHW:46929	162,700 population served	2010
JiangsuHW:46022	162,000 population served	2010
JilinHW:45645	161,000 population served	2010
HenanHW:46680	161,000 population served	2010
GuangdongHW:47067	161,000 population served	2010
GuangdongHW:47110	161,000 population served	2010
HebeiHW:45335	160,000 population served	2010
HebeiHW:45336	160,000 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.