环境工程学报2012，Vol.6Issue(12)：4289-4293,5.
水质对紫外消毒在两种典型再生水中应用的影响
Influence of water quality on UV disinfection in two typical reclaimed waters
摘要
Abstract
The effect of water quality on UV disinfection was studied using E. coli as testing bacteria. The result showed that UV could inactivate E. coli effectively and 4.41-1g reduction was achieved at the UV dose of 4 mJ/cm2. Ferric ion and humic acid and dissolved matter in reclaimed waters all had effects on light absorbance degree and UV transmittance of water sample, but no marked effect on inactivation rate of E. coli. At the range of particles concentration (0 -200 mg/L), activated sludge particles and kaolin clay particles shielded E. coli to an insignificant degree relative to particle-free control conditions, while the particles present in W1 reclaimed wa- ter (2.6 mg/L) provided significant protection, showing a significant tailing. Humic acid enforced the photore- activation ability of UV-damaged E. coli, but in reclaimed water, the photoreactivation ability reduced to varying degrees according to different water samples.关键词
再生水/紫外消毒/大肠杆菌/光复活/水质Key words
reclaimed water/UV disinfection/E. coli/photoreactivation/water quality分类
资源环境引用本文复制引用
王秀娟,胡学香,胡春..水质对紫外消毒在两种典型再生水中应用的影响[J].环境工程学报,2012,6(12):4289-4293,5.基金项目
国家水体污染控制与治理科技重大专项 （）
北京市教育委员会共建项目专项资助 （）
