摘要
采用同比例反硝化深床中试装置,对比单层填料反硝化深床滤池与双层填料反硝化深床滤池的脱氮能力。结果表明,双层填料反硝化深床滤池对水质的要求更低,脱氮量较单层填料反硝化深床滤池更大;最佳反冲洗周期为1 d,超过设定周期连续运行对TN的去除无明显影响;同时,对于该系统应根据填料层的性质设置不同的反冲洗周期,可有效延长滤池的使用周期。
A comparative analysis of the denitrification abilities between single denitrification deep bed filter and dual packing denitrification deep bed filter was achieved by the pilot plant using the same proportion of denitrification deep beds. The results showed that the lower water quality of dual packing denitrification deep bed filter required, the better denitrification capacity became campared with single denitrification deep bed filter. The best backwash cycle was one day, and continuous operation when exceeding predefined periodic time had no effect on the removal of TN. At the same time, the service cycle of the filter was prolonged effectively by setting different backwash cycles depending on the properties of packing layer.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第7期94-96,共3页
China Water & Wastewater
关键词
双层填料反硝化深床滤池
改性聚氨酯填料
脱氮
反硝化速率
dual packing denitrification deep bed filter
modified polyurethane
nitrogen removal
denitrification rate