猪场稳定塘废水的IBAF脱氮影响因素研究  

Study on the Biological Nitrogen Removal of Swine Lagoon Wastewater by IBAF System

作　　者：王新[1] 倪晋仁[1] 翟风敏[1] 

机构地区：[1]北京大学环境工程系水沙科学教育部重点实验室,北京100871

出　　处：《应用基础与工程科学学报》2006年第1期10-15,共6页Journal of Basic Science and Engineering

基　　金：国家863基金项目资助(2004AA649360)

摘　　要：低碳氮比高氨氮是猪场稳定塘废水生物脱氮时遇到的主要问题.采用固定化曝气生物滤池(IBAF)工艺处理猪场稳定塘废水,重点对碱度、DO、碳源等影响脱氮过程的因素进行了研究.结果表明,补充1.5g/L的Na2CO3可维持废水碱度使硝化反应进行完全,载体外部DO浓度为3.0mg/L时脱氮效率最高,反硝化阶段补充新鲜废水做碳源时总氮去除率为93%,可大幅度降低运行成本.本实验为解决养猪废水的脱氮问题提供了一条新途径.Low C/N and high concentration ammonia is the main problem in the nitrogen removal of the swine lagoon wastewater. In this study, the immobilized-microorganism Biological Aerobic Fiher was used to treat swine lagoon wastewater, Factors influencing the biological nitrification and denitrification were mainly studied. When 1.5g/L Na2CO3 was added to swine lagoon wastewater, the nitrification process would react completely. The highest TN removal efficiency was reached when DO was 3.0mg/L The TN removal efficiency was 93% when the fresh rinse wastewater was used as the carbon resource in the denitrification, which could reduce the operation cost. This research provided a new way to resolve nitrogen-removal problem of the swine wastewater.

关 键 词：养猪废水 曝气生物滤池 固定化微生物 硝化 反硝化 

分 类 号：X713[环境科学与工程—环境工程]