论文部分内容阅读
病原原生动物如阴子虫和贾第虫及其卵囊或囊对水源水和饮用水的污染及其危害致病,已成为国际研究的重点。其去除方法分为两大类,一为阻截去除,一为杀灭去除,过滤截留其去除病原微生物的效率与滤出水浊度有关,出水浊度≤0.1NTU的处理系统能非常有效地去除病原菌、病毒和病原原生动物虫卵,去除率分别大于6log、5log和4log(即99.9999％,99.999％和99.99％);纳滤和反渗滤膜过滤,能全部去除上述病原微生物。O_3与ClO_2或紫外线联用能将阴胞子卵的灭活率达到4log(99.99％)。
Pathogenic protozoa, such as insects and giardiasis, and oocysts or cysts on the source of water and drinking water pollution and its harmful pathogenic, has become the focus of international research. The removal method is divided into two categories, one for the interception removal, one for the removal of removal, filtration and retention of its efficiency to remove pathogenic microorganisms and turbid water filtration turbidity, effluent turbidity ≤ 0.1NTU processing system can be very effective in removing pathogens , Viruses and protozoa eggs, the removal rates were greater than 6log, 5log and 4log (ie, 99.9999%, 99.999% and 99.99%, respectively); nanofiltration and reverse osmosis membrane filtration, can completely remove the pathogenic microorganisms. O_3 combined with ClO_2 or UV can achieve 4log (99.99%) inactivation rate.