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采用聚酰胺复合薄膜技术处理含油废水

Oily Wastewater Treatment Using Polyamide Thin Film Composite Membrane Technology.

作者信息

Elhady Sarah, Bassyouni Mohamed, Mansour Ramadan A, Elzahar Medhat H, Abdel-Hamid Shereen, Elhenawy Yasser, Saleh Mamdou Y

机构信息

Public Works Department of Sanitary and Environmental Engineering, the High Institute of Engineering and Technology in New Damietta, New Damietta 34518, Egypt.

Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said 42526, Egypt.

出版信息

Membranes (Basel). 2020 Apr 28;10(5):84. doi: 10.3390/membranes10050084.

DOI:10.3390/membranes10050084
PMID:32354064
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7281104/
Abstract

In this study, polyamide (PA) thin film composite (TFC) reverse osmosis (RO) membrane filtration was used in edible oil wastewater emulsion treatment. The PA-TFC membrane was characterized using mechanical, thermal, chemical, and physical tests. Surface morphology and cross-sections of TFCs were characterized using SEM. The effects of edible oil concentrations, average droplets size, and contact angle on separation efficiency and flux were studied in detail. Purification performance was enhanced using activated carbon as a pre-treatment unit. The performance of the RO unit was assessed by chemical oxygen demand (COD) removal and permeate flux. Oil concentration in wastewater varied between 3000 mg/L and 6000 mg/L. Oily wastewater showed a higher contact angle (62.9°) than de-ionized water (33°). Experimental results showed that the presence of activated carbon increases the permeation COD removal from 94% to 99%. The RO membrane filtration coupled with an activated carbon unit of oily wastewater is a convenient hybrid technique for removal of high-concentration edible oil wastewater emulsion up to 99%. Using activated carbon as an adsorption pre-treatment unit improved the permeate flux from 34 L/mhr to 75 L/mhr.

摘要

在本研究中，聚酰胺（PA）薄膜复合（TFC）反渗透（RO）膜过滤被用于食用油废水乳液处理。采用机械、热、化学和物理测试对PA-TFC膜进行表征。利用扫描电子显微镜（SEM）对TFC的表面形态和横截面进行表征。详细研究了食用油浓度、平均液滴尺寸和接触角对分离效率和通量的影响。使用活性炭作为预处理单元提高了净化性能。通过化学需氧量（COD）去除率和渗透通量评估RO单元的性能。废水中的油浓度在3000 mg/L至6000 mg/L之间变化。含油废水的接触角（62.9°）高于去离子水（33°）。实验结果表明，活性炭的存在使渗透COD去除率从94%提高到99%。RO膜过滤与含油废水的活性炭单元相结合是一种方便的混合技术，可去除高达99%的高浓度食用油废水乳液。使用活性炭作为吸附预处理单元可使渗透通量从34 L/（m·hr）提高到75 L/（m·hr）。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/4b6f9e4dd2ef/membranes-10-00084-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/7d3c9bf8dcfa/membranes-10-00084-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/e7a64975e143/membranes-10-00084-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/07f206a53f4f/membranes-10-00084-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/6964d2b46635/membranes-10-00084-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/d2277b895e4f/membranes-10-00084-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/6ef65fd5966a/membranes-10-00084-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/707a0b13421a/membranes-10-00084-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/765a5d929dee/membranes-10-00084-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/00337a1f2221/membranes-10-00084-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/4b6f9e4dd2ef/membranes-10-00084-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/7d3c9bf8dcfa/membranes-10-00084-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/98f708019427/membranes-10-00084-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/cb3eeb6bcb7c/membranes-10-00084-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/e7a64975e143/membranes-10-00084-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/07f206a53f4f/membranes-10-00084-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/6964d2b46635/membranes-10-00084-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/d2277b895e4f/membranes-10-00084-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/6ef65fd5966a/membranes-10-00084-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/707a0b13421a/membranes-10-00084-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/765a5d929dee/membranes-10-00084-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/00337a1f2221/membranes-10-00084-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7e76/7281104/4b6f9e4dd2ef/membranes-10-00084-g012.jpg

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