不同曝气能耗对水蚯蚓原位消解污泥的影响  

THE EFFECT OF DIFFERENT ENERGY CONSUMPTION OF AERATION ON IN-SITU SLUDGE REDUCTION BY AQUATIC WORMS

作　　者：黄伟飞 舒英钢 蔡璐[2] 斯昇亮 金建华 黄铁锋 

机构地区：[1]诸暨市菲达宏宇环境发展有限公司,浙江诸暨311800 [2]中国科学院地理科学与资源研究所,北京100101

出　　处：《环境工程》2013年第3期1-4,共4页Environmental Engineering

基　　金：国家高技术研究发展计划(863)项目(2009AA064301)

摘　　要：水蚯蚓原位消解污泥过程中,曝气参数的设定十分重要。为评价曝气能耗对水蚯蚓消解污泥的影响并设定适宜的曝气量,研究污水处理系统耦合水蚯蚓后不同曝气梯度下的运行情况,并对耦合水蚯蚓前后的系统进行比较。结果表明:溶解氧最适范围为2～3 mg/L,曝气能耗约为0.19 kW.h/t;溶解氧高于3 mg/L时系统能效并无提高,且能耗增大。During the process of in-situ sludge reduction by aquatic worms, aeration parameter is crucial. To assess the effect of energy consumption of aeration on the sludge reduction and determine an optimal aeration parameter, it was investigated the operations of aquatic worm reactor in different aerations as well as compared the treatment results of conventional reactor and aquatic worm reactor. Results revealed that the optimal concentration of dissolved oxygen was 2 ~ 3 mg/L and the corresponding power of aeration was around 0.19 kW. h/t. When the concentration of dissolved oxygen was above 3 rag/L, the aeration efficiency was not improved with only power consumption increased.

关 键 词：水蚯蚓 原位消解污泥 曝气能耗 溶解氧 污水处理 

分 类 号：X703[环境科学与工程—环境工程]