家用型生物慢滤装置在窖水处理中的应用

Effects of household biological filtration device in the treatment of cellar water

针对西北村镇集雨水窖的水质问题,利用生物慢滤技术,在传统的窖水水质处理基础上研发了实用型家庭窖水水质处理装置,分析了利用该装置系统进行窖水处理的效果与机理,确定了膜的生长周期.结果表明:在滤速为0.1m/h的情况下,生物膜成长期为15～25d.该装置对浊度平均去除率为95.7%,对CODMn平均去除率为36.8%,对氨氮平均去除率为85.9%,对菌落总数平均去除率为95.7%,对总大肠菌群平均去除率为100%.

Household biological filtration device aims to solve the quality problems of water in towns and counties of northwest China,which is special for the utility-type household water treatment by making full use of the technology of biological filtration and based on the traditional water treatment technologies.The effects and mechanisms were analyzed,meanwhile,the growth period of biofilm was determined on the base of practical application and research.The results showed that if filtering speed could be controlled under 0.1m/h,the growth period of biofilm would be about 15 to 25 days.The average removal rates of turbidity,CODMn,ammonia,aerobic bacterial count,total coliform group were 95.7%,36.8%,85.9%,95.7%,100%,resptectivly.The problems,such as turbidity,organics,ammonia,and microbiology etc.,were effectively solved.This device could be easily operated and conveniently managed,which could be recommended for household water treatment in towns and counties of northwest China.