Institute of Inorganic Chemical Technology and Environment Engineering, West Pomeranian University of Technology in Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, Poland.
J Hazard Mater. 2011 Feb 28;186(2-3):1667-71. doi: 10.1016/j.jhazmat.2010.12.041. Epub 2010 Dec 17.
Treatment of waste emulsions generated in the cable factory from copper wire drawing was investigated using the integrated membrane processes: ultrafiltration (UF) and nanofiltration (NF). The application of UF tubular membranes (MWCO 100 kDa) resulted in 98% retention of oil and lubricants, whereas the degree of passage of copper ions (the major component of effluents from cable factory) was 99%. The average permeate flux amounted to 45 l/m(2) h for the transmembrane pressure of 3.5 bar during the UF pretreatment of waste emulsions. The Silt Density Index (SDI) values of UF permeates were appropriate for the application of spiral wound membranes in the NF process. The complete removal of oil and lubricants was achieved in NF process and the content of TOC was reduced by more than 90%. The rejection of copper ions in the NF process was 90% and 98% for NF270 and NF90 membranes (FILMTEC), respectively. The quality of NF permeates allows a direct reuse of treated water for the preparation of fresh emulsion.
采用膜集成工艺——超滤（UF）和纳滤（NF）处理电线电缆厂铜拉丝过程中产生的废乳化液。应用 UF 管式膜（MWCO 为 100 kDa）可使油和润滑剂的截留率达到 98%，而铜离子（电缆厂废水的主要成分）的透过率为 99%。在 UF 预处理废乳化液过程中，跨膜压力为 3.5 bar 时，平均渗透通量为 45 l/（m(2)·h）。UF 渗透物的淤渣密度指数（SDI）值适用于卷式膜在 NF 过程中的应用。在 NF 过程中可完全去除油和润滑剂，TOC 的含量减少了 90%以上。NF270 和 NF90 膜（FILMTEC）对铜离子的截留率分别为 90%和 98%。NF 渗透物的质量允许将处理后的水直接再用于制备新鲜乳液。
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