Law Fong Sewage Treatment Facility in Shenzhen river, Shenzhen Water Group, China

shenzhen sewage treatment plant bluegreen infrastructure sustainable development effluent quality eco system anaerobic digestion nutrient removal facility assimilate organic pollutants wastewater shen zhen environmental conservation surplus activated sludge primary sedimentation tank final sedimentation tank marine environment infrastructure environment remove solid aeration tanks stormwater compressed air aerated grit channel law fong ultraviolet disinfection system recylcing treatment capacity grit classifier revitalization renewable digester sanitation grit removal primary sludge relocation to caverns mechanical bar screen inlet work reuse recycle biological enviornmentalfriendly sunrise sludge scraping mechanism rainwater purify uv disinfection purification hygiene dirty