摘要
影响上向流曝气生物滤池反冲洗效果因素包括冲洗强度和冲洗时间等。针对矿区生活污水特点,对矿区生活污水厂的曝气生物滤池进行了反冲洗强度及其控制的研究。研究结果表明:采用负压脉冲方式反冲洗滤池,运行周期为48 h,平均水力反冲洗强度、速度梯度、反冲洗所需水量及水冲洗时间为26.25L/(m2/s)、649.4 s-1、43.4 L和169 s时,可实现滤床的快速更新,反冲洗耗水率为1.45%,效果明显。
The washing strengths and washi ng time is keys to the biological aerated filter.Based on the characteristic of the domestic sewage in coal mining area,we studied the Backwashing strength and it＇s Control of Biological Aerated Filter.The result show： using negative pressure pulse backwashing Aerated Filter,operation period is 48 hours,and at the average hydraulic The Backwashing strength of 26.25 L/（m2/s）,the velocity gradient is 649.4s-1,the water is 43.4 L,and the Backwashing time is 169 s,the Sewage Treatment worked batter,the Backwashing water consumption rate can reach 1.45 %,and can rapidly update the filter bed.
出处
《能源环境保护》
2015年第2期17-19,41,共4页
Energy Environmental Protection
关键词
曝气生物滤池
矿区生活污水
负压脉冲
反冲洗强度
Biological Aerated Filter
Domestic Sewage in Mining Area
Negative pressure pulse
The Backwashing strength
