Purification of oily wastewater by hybrid UF/MD

被引:158
作者
Gryta, M [1 ]
Karakulski, K [1 ]
Morawski, AW [1 ]
机构
[1] Tech Univ Szczecin, Inst Inorgan Chem Technol & Environm Engn, Dept Water Technol & Environm Engn, PL-70322 Szczecin, Poland
关键词
ultrafiltration; tubular membrane; membrane distillation; oily wastewater; bilge water;
D O I
10.1016/S0043-1354(01)00083-5
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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%). (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3665 / 3669
页数:5
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