Comparing of Flotation and Sedimentation Process for Treating Trihalomethanes
The treatment of prechloridized water by the coagulation-dissolved air flotation process and the coagulation-sedimentation process was examined, the removal of trihalomethanes (THMs) and trihalomethanes formation potential (THMFP) were studied. The results show that the removal rate of THM and THMFP treated with flotation process is 37% and 55% respectively, which is respectively 18% and 21% higher than with sedimentation process (19% and 34%); After flotation process, the value of UV254/TOC is decreased significantly, which indicates that the THMFP is decreased significantly, and the formation of THMs during the follow-up chlorination process can be reduced obviously; the removal of THMFP in each molecular weight range treated with flotation is better than with sedimentation, those two processes mainly remove the THMFP of larger molecular weight range and the removal efficiency of THMFP in smaller molecular weight range is poor.
Xiaoming Sun Qishan Wang Yanfang Liu Wenshu Zhu
College of Environment Science and Engineering, Nankai University, Tianjin 300071, China.The Guangxi College of Environment Science and Engineering, Nankai University, Tianjin 300071, China.
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）