自来水厂除锰滤池的成熟与微生物群落的研究

Study on the Maturation of the Filters in Water Plants andthe Formation of Microbial Community

为探讨自来水厂除锰滤池成熟的生物机理，从生产滤池和实验滤柱成熟过程的不同阶段取１０００多个水质和细菌样品进行了分析测试．实验结果表明：滤池（柱）的成熟过程是不同细菌有规律的增殖并固定在滤料和包埋于铁泥的过程；当每ｇ滤砂的细菌个数超过１０４时，滤池（柱）才能成熟和高速除锰，承受反冲洗强度及提高出水质量．根据细菌数量和除锰效果，把滤池的成熟过程分为适应期、第１增长期、第２增长期和稳定期等４个时期．本文工作为加速滤池的成熟和有效除锰提供了实验依据．

A great number of the bacterial and water sample was taken for study on the mechanism of maturation of the filters in water plants.The test indicated that the maturation of the filters is due to the regular reproduction of the bacteria,including the iron bacteria and some other bacteria.Not only the microbes on the filter sands,but also the microbes in the ferric mud contribute to the maturation of the filters and the quality of the water product.The maturation of the filters can be divided into four period according to the Mnremoving capacity and amount of the bacteria:adjusting period,increasing period Ⅰ,increasing period Ⅱ and stable period.