Treatment performances of capillary infiltration system for municipal wastewater
The treatment performances of capillary infiltration system fed by municipal wastewater were investigated in this paper. The composite fillers were constructed in capillary infiltration system to reach the prospective treatment effects. Compared to the single filler, composite filler promoted the ventilating condition and improved the distribution situation. The higher treatment efficiencies of NH4 +-N, TN, COD and TP were achieved. It was found that the optimum hydraulic load and the ratio of feeding time and drying time (F/D) of the capillary infiltration system were 10cm/d and 1:3 (F=45min, D=135min), respectively. When the hydraulic load was 10cm/d, the removal efficiencies of NH4 +-N, TN, COD and TP were 97.9％, 29.1％, 68.4％ and 89.7％, respectively. Moreover, the average removal efficiencies of NH4 +-N, TN, COD and TP were 96％, 22.3％, 68.4％ and 89.7％, respectively, under the situation of 1:3 F/D. These results would provide a valuable reference to the design of practical capillary infiltration project.
municipal wastewater capillary infiltration hydraulic load the ratio of feeding time and drying time
Liangbo ZHANG Jian YANG Yuanlin QUE Yifan WU
State Key Laboratory of Pollution Control and Resources Reuse,School of Environmental Science and Engineering,Tongji University Shanghai 200092,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）