Does the wastewater treatment plant need to be designed in accordance with explosion-proof requirements? Are there any relevant standards?

Refer to the \"GB 50015-2003 Code for Design of Water Supply and Drainage in Buildings\" and the \"Design Manual for Water Supply and Drainage\"

Ahah, my suggestion for this colleague in the marine industry is that you refer to the following standards: \"GB 50684-2011 Design Code for Sewage Treatment and Reuse in the Chemical Industry\", \"GB 50747-2012 Design Code for Sewage Treatment in the Petrochemical Industry\", and \"GB 28742-2012 Safety Technical Code for Sewage Treatment Equipment\". Regarding the wastewater treatment plant, it is composed of many separate treatment units. Whether it is designed in accordance with explosion-proof requirements depends on whether those units generate hazardous substances during processing; it is determined by the internal pollutants present in the wastewater produced by the equipment, as well as any flammable or explosive substances generated by the treatment units. Whether to design in accordance with explosion-proof requirements should be determined based on the category of hazardous substances generated by the wastewater treatment unit, as specified by the process engineering team. Generally, in wastewater treatment units, anaerobic sections and oxygen-consuming sections are often classified as explosion-proof areas, while relevant biogas storage and combustion units must also be explosion-proof areas. Its detailed design shall comply with standards such as \"GB 50058-2014 Code for Design of Electrical Installations in Explosive Atmospheres\", \"GBT 29304-2012 Guidelines for Explosion Protection in Hazardous Areas\", and \"GB 3836.1~20 Electrical Equipment for Use in Explosive Gas Environments\".