微絮凝-大梯度磁滤工艺对消毒副产物前驱物控制的研究  

Study on microflocculation-great gradient magnetic filtration process to control disinfection by-products precursors

作　　者：曹勇锋[1] 张朝升[1] 荣宏伟[1] 刘涛[1] 陈秋丽[1] 

机构地区：[1]广州大学土木工程学院,广州510006

出　　处：《给水排水》2017年第7期59-63,共5页Water & Wastewater Engineering

基　　金：国家自然科学基金项目(21477027);广东省普通高校青年创新人才项目(2014KQNCX105);广东省科技计划(2014A020216048;2014A020216049)

摘　　要：以珠江水为原水,利用微絮凝-大梯度磁滤工艺对水中消毒副产物前驱物进行处理,研究工艺的磁场强度和磁滤速度的变化对消毒副产物生成势(THMFP)和UV_(254)的去除效果影响。研究发现,去除THMFP以去除三氯甲烷生成势为主;THMFP的去除效率随着磁场强度的升高或滤速的降低而升高,在磁场强度为0.23T时达到最高为47.83%,磁滤速度为6~8m/h时,去除率稳定在46%左右;UV_(254)的去除效果受滤速的影响较大,滤速从6 m/h提高到16 m/h时,去除率从57.56%下降到39.58%,而磁场强度的变化对UV_(254)的去除效率影响较小,去除率稳定在46.0%~50.7%。Disinfection by-products precursors in raw water from the Pearl River was treated by microflocculation-great gradient magnetic filtration process. The removal effects of variation of magnetic field intensity and filtering velocity were studied on the treatment of trihalomathanes for- mation potential（THMFP） and UV254. It was found that the removal of THMFP was mainly to re- move trichloromethane formation potential in water. The removal effect of THMFP increased un- der the increasing of magnetic field intensity and the decreasing filtering velocity, the removal effect reached to the peak of 47.83 % when the magnetic field intensity was 0. 23 T and the removal effect stabled at around 46 % when filtering velocity was between 6 m/h and 8 m/h. The filtering velocity had a large influence on the removal effect of UV254, with removal effect decreased from 57.56% to 39.58%, while the magnetic field intensity had a little influence on the removal effect（46. 0%-50. 7%）.

关 键 词：微絮凝-大梯度磁滤工艺 消毒副产物前驱物 消毒副产物(DBPs) 三卤甲烷生成势(THMFP) 三卤甲烷(THMs) 

分 类 号：TU991.25[建筑科学—市政工程]