采用超滤/膜蒸馏联用技术净化含油废水

Purification of oily wastewater by hybrid UF/MD.

作者信息

Gryta M, Karakulski K, Morawski A W

机构信息

Department of Water Technology and Environmental Engineering, Institute of Inorganic Chemical Technology and Environmental Engineering, Technical University of Szczecin, Poland.

出版信息

Water Res. 2001 Oct;35(15):3665-9. doi: 10.1016/s0043-1354(01)00083-5.

DOI:10.1016/s0043-1354(01)00083-5

PMID:11561628

Abstract

Investigations on the treatment of oily wastewater by a combination of ultrafiltration (UF) and membrane distillation (MD) as a final purification method have been performed. A tubular UF module equipped with polyvinylidene fluoride (PVDF) membranes and a capillary MD module with polypropylene membranes were tested using a typical bilge water collected from a harbour without pretreatment. The permeate obtained from the UF process generally contains less than 5 ppm of oil. A further purification of the UF permeate by membrane distillation results in a complete removal of oil from wastewater and a very high reduction of the total organic carbon (99.5%) and total dissolved solids (99.9%).

摘要

已经开展了关于采用超滤（UF）和膜蒸馏（MD）相结合作为最终净化方法处理含油废水的研究。使用从港口收集的未经预处理的典型舱底水，对配备聚偏氟乙烯（PVDF）膜的管式超滤组件和配备聚丙烯膜的毛细管式膜蒸馏组件进行了测试。超滤过程获得的渗透液中油含量通常低于5 ppm。通过膜蒸馏对超滤渗透液进一步净化，可实现废水中油的完全去除以及总有机碳（99.5%）和总溶解固体（99.9%）的大幅降低。