倒置A_2/O-MBR工艺处理农村黑臭水体的研究  

Treatment of Rural Black and Odorous Water by Reversed A_2/O-MBR Process

作　　者：陈欣仪 邓杰帆 曾彩明 何觉聪 CHEN Xinyi;DENG Jiefan;ZENG Caiming;HE Juecong(Institute of Environmental Science Research,Dongguan 523009,China)

机构地区：[1]东莞市环境科学研究所,广东东莞523009

出　　处：《东莞理工学院学报》2019年第1期63-68,共6页Journal of Dongguan University of Technology

摘　　要：试验采用倒置A_2/O-MBR工艺处理农村黑臭水体,研究分析系统在最佳运行条件下,对污水中污染物的去除效果。运行结果表明,当水处理量为0. 75 m^3/h时,对污染物CODCr、氨氮、TN和TP的去除效果最佳,去除率分别为84. 90%、96. 42%、30. 22%和47. 75%,出水浓度均可达到《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A标准。系统的脱氮除磷效果较差,主要原因是系统碳源不足,导致缺氧池反硝化不彻底,大量硝酸盐进入厌氧池抑制聚磷菌释磷。因此,提出采用增加碳源和化学辅助除磷等方法,以提高系统脱氮除磷的效果。An inverted A2/O-MBR process was used to treat the black and smelly water in rural areas. The removal effect of pollutants in the wastewater was studied under the optimum operating conditions. The study shows that when the water treatment volume was 0. 75m3/h,the optimal removal efficiencies of COD,ammonia nitrogen,TN and TP were 84. 90%,96. 42%,30. 22%and 47. 75% respectively. Besides,the quality of effluent can reach A Criterion of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants of GB18918-2002. Due to insufficient carbon source in the system,the denitrification was incomplete in the anoxic tank. Thus,A large amount of nitrate flowed into the anaerobic tank and inhibited phosphorus release process,resulting in poor denitrification and phosphorus removal. Therefore,this paper proposes to improve the effects of nitrogen and phosphorus removal by adding external carbon source and chemical reagents.

关 键 词：黑臭水体 倒置A2/O-MBR 脱氮除磷 反硝化 

分 类 号：X522[环境科学与工程—环境工程]