地下渗滤基质中微生物空间分布与污水净化效果相关分析  

SPATIAL DISTRIBUTION OF MICROORGANISMS IN SWIS AND THEIR CORRELATION WITH POLLUTANTS REMOVAL FOR WASTEWATER TREATMENT

作　　者：张思[1] 宁国辉[1] 李昊阳[2] 杨铮铮[1] 谢建治[1] 

机构地区：[1]河北农业大学资源与环境科学学院,河北省农田生态环境重点实验室,河北保定071001 [2]北京林业大学生物科学与技术学院,北京100083

出　　处：《水处理技术》2014年第7期63-66,79,共5页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07209-008-005;2008ZX07209-007-05);国家科技支撑计划项日(2007BAD87B04);河北省科技厅项目(09227102D)

摘　　要：利用混菌法和稀释法,测定了地下渗滤系统基质中不同深度的微生物数量,并分析了微生物数量与污水净化效果的关系。结果表明,基质中不同空间位置微生物数量不同,除反硝化细菌其他细菌一般呈现从表层到底层逐渐递减的规律;细菌数量与COD去除率相关性显著,细菌和反硝化菌数量与TN去除率相关性显著,亚硝酸菌数量与NH3-N去除率相关性极显著,说明微生物的作用是去除它们的主要途径;微生物数量与TP去除率相关性不显著,说明微生物在TP去除的过程中作用不大。The number of mieroorganisms at different depth in subsurface wastewater infiltration systems （SWIS） was monitored by plate counting and MPN, and the correlation between number of microorganisms and wastewater purification effects were studied. The results indicate： The number of mierooiganisms in substrate in different spaces is different, except the denitrifying bacteria and other bacteria generally decreasing from the surface to the bottom. The number of bacteria and COD removal rate is significantly correlated, the number of bacteria and denitrifying bacteria is significant correlation with TN removal rate, and the number of nitrite bacteria is extremely significant correlation with NH4^＋-N removal rate, indicating that the action of microorganism probably is the main way for their removal. The number of mieroorganism is not interrelated markedly to removal of TP, which showing that microorganism in the process of TP removal is very limited.

关 键 词：地下渗滤系统 微生物 净化效果 相关性 

分 类 号：X703.1[环境科学与工程—环境工程]