摘要
利用纳滤膜(NF)对微污染的H市自来水进行深度处理试验与研究,用经氯化的含TOC为0.23～0.34mg/L纳滤水对模拟小型试验配水系统内异养型微生物的生长与繁殖情况进行检测和电镜观察,来探讨纳滤出水是否具有生物稳定性.结果表明:在已形成生物膜的不同材质的铸铁管和ABS管中通入5个半月纳滤水后,在系统的终端细菌总数由1.43×104cfu/mL缓慢减到2.1×103cfu/mL,并且ABS管上在5个半月的时间内未形成生物膜,但纳滤膜出水的AOC值还有待于进一步测定.
A bench experiment was carried out to study biological stability of two simulated distribution water systems by input the NF effluent with0.23～0.34mg /L of TOC,and observing the regrowth of bacteria in the system.The results of routine analysis and telescopic observation indicated that after5and half months operation since input of NF filtrate the cast-iron pipe and ABS pipe distribution systems,in which the biofilm was formed,the total bacteria of terminal effluent from these system were decreased slowly from the original1.43×10 4 to2.1×10 3 cfu/mL,and stayed around this figure since then.
出处
《哈尔滨建筑大学学报》
北大核心
2002年第4期53-55,共3页
Journal of Harbin University of Civil Engineering and Architecture
