蚯蚓生物滤池的硝化性能及其影响因素研究  

Study on Nitrification Performance of Vermibiofilter and Its Influencing Factors

作　　者：邢美燕[1] 杨健[1] 马小杰 陈巧燕[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]上海市城市建设设计研究院,上海200125

出　　处：《中国给水排水》2008年第3期9-12,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2003AA601020)

摘　　要：以厌氧水解池/高负荷生物滤池/蚯蚓生物滤池组合中试工艺为基础,考察了蚯蚓生物滤池的硝化性能及其影响因素。试验结果表明,在滤床温度为16.6～29.5℃时,蚯蚓生物滤池具有较好的硝化性能,硝化速率为0.2～0.5mgNH4+-N/(g.h);当滤床温度<10℃时硝化速率<0.1mgNH4+-N/(g.h),最小值仅为0.0456mgNH4+-N/(g.h)。蚯蚓密度与硝化菌数量呈线性正相关,说明蚯蚓与硝化菌之间存在协同生长效应。Based on the integrated pilot-scale process of anaerobic hydrolysis tank, high-load bio- filter and vermibiofiher, the nitrification performance of the vermibiofiher and the influencing factors were investigated. The results indicate that the nitrification rate of the vennibiofiher ranges from 0. 2 to 0. 5 mgNH4^＋ -N/（ g ·h）at the filter-bed temperature of 16.6 to 29.5 ℃, and the nitrification rate is less than 0. 1 mgNH4^＋ - N/（ g ·h） at the filter-bed temperature of less than 10 ℃ with the smallest value of 0. 045 6 mgNH4^＋ -N/（ g·h）. There is a positive linear correlation between the earthworm density and the nitro- bacteria quantity, which means that the earthworms and the nitrobacteria can exist synergistically.

关 键 词：蚯蚓生物滤池 硝化性能 温度 水力负荷 

分 类 号：X703[环境科学与工程—环境工程]