摘要
研究了活性炭处理出水(炭后水)中游离细菌与颗粒物附着细菌分离前后紫外线消毒效果.分离前,研究了3种紫外线强度对游离细菌和颗粒物附着细菌的整体灭活效果.结果发现,炭后水中细菌在低紫外剂量下,低强度更有利于细菌失活;紫外线较难灭活炭后水中颗粒物附着细菌.分离后,低强度紫外线对颗粒物附着细菌的灭活效果优于高强度,且随着紫外线剂量增加,颗粒物对细菌的保护作用增强.
This research studied the ultraviolet disinfection effect before and after the separation of free bacteria and bacteria attached to particles in activated carbon effluent.Before the separation,it studies the ultraviolet disinfection effect of activated carbon effluent under three ultraviolet intensities.The results show that lower ultraviolet intensity is helpful to the inactivation of these bacteria under lower ultraviolet dose and the bacteria attach to particles in activated carbon effluent is difficult to be inactivation by ultraviolet. After the separation, this paper examines the ultraviolet inactivation effect of bacteria attached to particles alone. The results show that the disinfection effect of lower ultraviolet intensity is better than higher ultraviolet intensity. With the ultraviolet dose increasing, the protection effect of particles is more obvious.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第10期117-120,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50778062)
国家高技术研究发展计划资助项目(2006AA06Z311)
关键词
饮用水
活性炭
紫外线消毒
颗粒物附着细菌
drinking water
activated carbon
ultraviolet disinfection
bacteria attached to particles
