Trichloromethane formation potential in killing algae with chlorine dioxide

摘要：

　　Trichloromethane was detected by gas chromatography-mass spectrum-selected ion monitoring system during killing algae with chlorine dioxide.After oxidized by chlorine dioxide,the algal solution was filtered to removed algae,the filtrate was cultured with chlorine,and the trichloromethane was also analyzed.The results showed that trichloromethane did not form during killing algae with chlorine dioxide,but the solution which was oxidized by chlorine dioxide and filtered to removed algae generated trichloromethane after cultured with chlorine.The concentration of trichloromethane formed was influenced by the dose of chlorine dioxide used to killing algae,initial algal number and chlorine concentration.When chlorine dioxide was below 3 mg·L-1,the trichloromethane concentration fast increased with the dose of chlorine dioxide increasing,while chlorine dioxide was above 3 mg·L-1,the trichloromethane concentration reached to a steady value.The trichloromethane concentration also increased with the increase of initial algal number and chlorine concentration.But even chlorine concentration was as high as 10 mg·L-1,the trichloromethane concentration was not over 28 μg·L-1,which was lower than the requirement for 0.06 mg·L-1 trichioromethane in China Standards for Drinking Water Quality (GB5749-2006).

关键词： algae chlorine dioxide trichloromethane formation potential

作者: Shaoxiu Li Deiun Zhao Shujie Hu Zhihong Wang Dongmei Li Xiuli Yuan Baohong Xie

作者单位: Faculty of Civil and Traffic Engineering, Guangdong University of Technology, Guangzhou 510006, Chin Water Affair Project Construction and Management Center of Guangzhou, Guangzhou, Guangdong 510640, C

会议类型: 国际会议

会议名称: 2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)

会议地点: 大连

会议语种:英文

页码: 471-473

在线出版日期: 2013-06-04（万方平台首次上网日期，不代表论文的发表时间）