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Professional Standard Category: Engineering Construction Standard

CECS 149-2003    Specification for design of nitrogen and phosphorus removal in activated sludge system
城市污水生物脱氮除磷处理设计规程 ;
Category No.:CECS Valid Status:abolished
Issued Organization:CECS Issued Date:2003-4-15
Implemented Date:2003-6-1 Abolished Date:2016-12-30
Superseded Standard.: Superseded Date:
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CECS : 3091   CECS : 0188   CECS : 109-2000   CECS : 5794   CECS 18-2000   CECS 72-1997   CECS:06-1988   CECS : 9998   CECA/GC 4-2017   CECS : 5493   CECS : 1890   CECS : 8496   CECS 3191   CECA/GC2-2007   CEL 004-2020   CECS : 6294   CECS:08-1989   CECS : 9397   CEL 021-2021   CECS 38:92  

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