中国化学工程学报（英文版）
中國化學工程學報（英文版）
중국화학공정학보（영문판）
CHINESE JOURNAL OF CHEMICAL ENGINEERING
2008年
5期
801-804
,共4页
晋卫%郭伟%吕效平%韩萍芳%王延儒
晉衛%郭偉%呂效平%韓萍芳%王延儒
진위%곽위%려효평%한평방%왕연유
ultrasound%membrane%ultrafiltration%cleaning%permeate flux6.accepted 2008-06-13
PolyvinyIidcncnuoride(PVDF)hollow fiber ultrafiltration membrane is frequently employed in water treatment.However,the fouling of ultrafiltration membranes affects the economic effectiveness of such process significantly.The ultrasound generated by flat plate transducer(UFPT) was used to clean the polluted PVDF ul-the membrane surface were studied.The new membrane was easy to be polluted by the saturated CaClz solution.A flux Could be recovered about 81%.The flux recovery of old membrane polluted was increased to 73.2%after 7 hsoaking in citric acid aqueous solution.but its flux recovery without soaking was only increased to 56.2%.
