集约化养猪场冲栏水的达标处理  

ABR-ICEAS System for Piggery Wastewater Treatment

作　　者：杨虹[1] 李道棠[1] 朱章玉[1] 董洪涛 陈源 

机构地区：[1]上海交通大学生命科学技术学院,上海200240

出　　处：《上海交通大学学报》2000年第4期558-560,共3页Journal of Shanghai Jiaotong University

基　　金：上海市环境保护科学技术发展基金资助项目! (沪环科97-0 0 5 )

摘　　要：采用厌氧 ABR反应器与好氧 -缺氧 ICEAS反应器串联工艺处理养猪场冲栏废水 .在无外加碱度条件下 ,由于进水中的碱度不够补偿硝化过程中碱度的消耗 ,而使 ICEAS反应器中的 p H降低至 5.5左右 ,严重抑制了硝化细菌和亚硝化细菌的活性 ,导致了 NH+4- N的去除率小于 60 %,出水中 NH+4- N的浓度为 60 0 mg/L左右 ,无法达到排放标准 .在外加 Ca CO3 ( 3.9g/L )的条件下 ,NH+4- N去除率达 97%,出水中 NH+4- N浓度为 43mg/L左右 ,COD总去除率达 95.5%,出水中 COD浓度为 2 50The treatment of wastewater from piggeries was studied by using anaerobic ABR reactor and aerobic anoxic ICEAS reactor in series in lab. Under the condition of no extra alkalinity added to the influent of ICEAS, as the alkalinity in the influent was not enough to compensate the alkalinity consumed in the process of nitrification, the pH in the ICEAS reactor then went down to about 5.5. Since the lower pH inhibited the bioactivity of bacteria for nitrification, the NH + 4-N removal efficiency was less than 60% and the NH + 4-N concentration in the effluent was about 600 mg/L which can not meet the Shanghai Discharge Standard for Piggery Wastewater. Under the condition of extra alkalinity CaCO 3(3.9 g/L) added to the influent of ICEAS, the removal efficiency of NH + 4-N reached 97%, the NH + 4-N concentration in the effluent was about 43 mg/L, the total COD removal efficiency arrived at 95.5% and the COD concentration in the effluent was about 250 mg/L, which all can meet the Shanghai Discharge Standard for piggery waste water (NH + 4-N<80 mg/L,COD<360 mg/L).

关 键 词：废水处理 冲栏废水 达标 集约化养猪场 

分 类 号：X710.3[环境科学与工程—环境工程]