Practice of High Concentration Sludge for Efficient Nutrient Removal from Municipal Sewage  

作　　者：李昂 张雁秋 李燕 

机构地区：[1]School of Environment Science and Spatial Informatics,China University of Mining and Technology [2]Jiangsu Key Laboratory of Resources and Environmental Information Engineering,China University of Mining and Technology

出　　处：《Journal of Donghua University(English Edition)》2010年第3期430-434,共5页东华大学学报（英文版）

基　　金：the Fund on Science and Technology of China University of Mining and Technology,China(No.0P080307);Key Extension Programon Scientific and Technological Achievements of China(No.2004EC000132)

摘　　要：ECOSUNIDE is a new activated sludge process based on the sludge concentration optimization theory.With it,we carried out a high sludge concentration by changing influent mode and distributing carbon source in a reasonable way,which can improve the ecological superiority of nitrification and denitrification for the growth of phosphorous accumulating organisms(PAOs)and nitrifiers and raised the nutrient removal efficiency of municipal sewage treatment plants.In 2007,we adopted this technique in Linyi Sewage Treatment Plant in Shandong Province,China.After the reconstruction,we achieved the high efficiency of nutrient removal with low investment under the dynamic load of the secondary sewage treatment plant.The effluent water qualities meet the classⅠ-A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002)and the rest effluent indexes meet the classⅠ-B criteria.Besides,we have above 20% operating cost cut by stopping the internal reflux without power charge increased and any new pool structures built.ECOSUNIDE is a new activated sludge process based on the sludge concentration optimization theory.With it,we carried out a high sludge concentration by changing influent mode and distributing carbon source in a reasonable way,which can improve the ecological superiority of nitrification and denitrification for the growth of phosphorous accumulating organisms（PAOs）and nitrifiers and raised the nutrient removal efficiency of municipal sewage treatment plants.In 2007,we adopted this technique in Linyi Sewage Treatment Plant in Shandong Province,China.After the reconstruction,we achieved the high efficiency of nutrient removal with low investment under the dynamic load of the secondary sewage treatment plant.The effluent water qualities meet the classⅠ-A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant（GB 18918-2002）and the rest effluent indexes meet the classⅠ-B criteria.Besides,we have above 20% operating cost cut by stopping the internal reflux without power charge increased and any new pool structures built.

关 键 词：ECOSUNIDE sludge concentration optimization high sludge concentration nutrient removal 

分 类 号：X703.1[环境科学与工程—环境工程]