What are the common standards for wastewater treatment?

The commonly used standards include:  “Code for Design of Outdoor Drainage” GB50014－2006  “Code for Design of Outdoor Water Supply” GB50013－2006  “Code for Design of Sewage Treatment in Petrochemical Industries” SH3095－2000  “Code for General Layout Design of Industrial Enterprises” GB50187－93  “Code for Design of Pipe Trays in Petrochemical Enterprises” SH3055－93  “Emission Standards for Pollutants from Urban Sewage Treatment Plants” GB18918－2002  “Integrated Wastewater Discharge Standards” GB8978－1996  “Code for Construction and Acceptance of Water Supply and Drainage Pipelines in Petrochemical Industries” SH 3533－2003  “Standards for General Drawing” GB/T50103－2001  “Provisions on the Design Content of Foundations for Petrochemical Units” SHSG－033－2003  “Code for Design of Control Rooms and Automatic Analysis Rooms in Petrochemical Industries” SH3006－1999  “Code for Design of Heating, Ventilation and Air Conditioning Systems” GB50019－2003  “Code for Design of Heating, Ventilation and Air Conditioning in Petrochemical Industries” SH3004－1999  “Code for Design of Industrial Metal Pipes” GB50316－2008  “Code for Design of Low-Voltage Power Distribution Systems” GB 50054－1995  “Code for Design of Power Distribution for General Electrical Equipment” GB 50055－1993  “Code for Design of Cables in Electrical Engineering” GB 50217－1994  “Code for Seismic Design of Electrical Facilities” GB 50260－1996  “Code for Grounding Design of Industrial and Civil Electrical Installations” GBJ 65－1983  “Technical Specifications for Aluminum Alloy Cable Trays” CECS 106:2000  “Code for Selection and Design of Automation Instruments in Petrochemical Industries” SH3005－1999  “Code for Design of Control Rooms and Automatic Analysis Rooms in Petrochemical Industries” SH3006－1999  “Code for Design of Industrial and Civil Power Supply and Distribution Systems” GB50052－95  “Technical Specifications for Electrical Design in Buildings” JGJ16－2008  “Code for Design of Relay Protection and Automatic Devices in Electrical Installations” GB50062－2008  “Code for Design of Power Distribution for General Electrical Equipment” GB50055－95  “Technical Specifications for Operation, Maintenance and Safety of Sewage Treatment Plants” CJJ605－94  “Code for Fire Protection Design of Petrochemical Enterprises” GB 50160－2008  “Code for Design of Fire Extinguishers in Buildings” GB 50140－2005  “Code for Design of Concrete Structures” GB50010－2002  “Code for Seismic Design of Buildings” GB50011－2008  “Unified Standards for Drawing of Building Structures” GB/T50001－2001  “Standards for Classification of Building Climate Zones” GB50178－93  “Code for Design of Light Steel Structures” GB50017－2003  “Standards for Noise Levels at the Boundaries of Industrial Enterprises” GB12348－2008