Ozone Oxidation for the Mitigation of Ultrafiltration Membrane Fouling by Secondary Wastewater Effluent Organic Matter
For better understanding the effect of ozone oxidation pretreatment on the fouling of ultrafiltration membrane by secondary wastewater effluent organic matters (EfDM),the interaction forces of membrane-foulant and foulant-foulant before and after pretreatment were investigated by atomic force microscopy with self-made membrane material probe and foulant-coated probe,respectively.Moreover,the EfDM fouling experiments were carried out with PVDF UF membrane before and after pretreatment.Results showed that the highest DOC and UV254 remove rate of EfDM were reached 19.4% and 42.4% respectively with ozone oxidation pre-treatment.And the membrane-foulant and foulant-foulant adhesion forces were reduced from 1.44mN/m and 0.88mN/m to 0.23mN/m and 0.38mN/m.It reveals that ozone oxidation pre-treatment of effluent organic matters can efficiently mitigate the membrane fouling.And the results can provide a microcosmic theory evidence for ozone pretreatment further application in wastewater treatment and reuse.
effluent organic matter ozone oxidation atomic force microscopy membrane fouling adhesion force
Feng Ling Wang Lei Miao Rui Liu Ziwen Zhang Caihao
School of Environmental & Municipal Engineering, Xi an University of Architecture and Technology Yan Ta Road.No.13, Xian, 710055, China
国际会议
2013青岛国际脱盐大会(Qingdao International Conference 2013 on Desalination and Water Reuse)
青岛
英文
225-230
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）