摘要
蚯蚓生态滤池具有流程简单、操作方便、成本低等优点,在保证出水水质的前提下,能有效减少系统污泥产量。但其除磷或除磷脱氮的能力还有待提高。工艺上还存在布水不均匀、局部积水和污泥堵塞等问题。蚯蚓生态滤池的污水污泥降解机理有待进一步深入研究。选择更适宜的填料,优化滤池的污染物负荷、水力负荷和温度等条件,有利于提高滤池污泥减量效率。
With simple process, convenient operation and lower costs, vermifiltration has been used in industrial practice and proved to be effective in sludge reduction without affecting treated water quality. Further researches have to be conducted for decreasing the concentration of P and N in treated water in vemlifiltration process. Problems of uneven water distribution, impounded water and vermifiltration bed clogging by sludge needed to be solved. Further researches on conversion of pollutants or sludge in the vermifiltration system needed to be conducted. To improve the sludge reduction effecieency it is necessary to optimize the conditions of hydraulic loading pollutant loading and temperature during vermifihration process.
出处
《科技信息》
2010年第27期I0005-I0006,共2页
Science & Technology Information
基金
北京市教委劳动卫生与环境卫生科技创新平台资助(PXM2009-014205-074352)
关键词
蚯蚓生态滤池
污泥减量技术
研究进展
Vermifihration
Sludge reduction process
Research development
