Optimum operation conditions of nitrogen and phosphorus removal by a biofilm-activated-sludge system  

作　　者：LIUJun－xin J．W．vanGroenestijin 

机构地区：[1]ResearchCentreforEco－EnviromentalSciences,ChineseAcademyofSciences,Beijing100085,China [2]DepartmentofEnvironmentalBiotechnoloty,TNOInstituteofEnviromentalSciences,EnergyReseachandProc

出　　处：《Journal of Environmental Sciences》2003年第1期25-30,共6页环境科学学报（英文版）

摘　　要：In the biofilm and activated sludge combined system, denitrifying bacteria attached on the fibrous carriers in the anoxic tank, while the sludge containing nitrifying and phosphorus removal bacteria was only recirculated between the aerobic and anaerobic tanks. Therefore, the factors affected and restricted nitrification, denitrification and phosphorus removal in a traditional A/A/O process were resolved. This paper describes the optimum operation conditions for nitrogen and phosphorus removal using this system.In the biofilm and activated sludge combined system, denitrifying bacteria attached on the fibrous carriers in the anoxic tank, while the sludge containing nitrifying and phosphorus removal bacteria was only recirculated between the aerobic and anaerobic tanks. Therefore, the factors affected and restricted nitrification, denitrification and phosphorus removal in a traditional A/A/O process were resolved. This paper describes the optimum operation conditions for nitrogen and phosphorus removal using this system.

关 键 词：NITRIFICATION DENITRIFICATION phosphorus removal BIOFILM activated sludge 

分 类 号：X703[环境科学与工程—环境工程]