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首页> 外文期刊>Environmental Science & Technology >Produced Water Treatment by Micellar-Enhanced Ultrafiltration
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Produced Water Treatment by Micellar-Enhanced Ultrafiltration

机译：胶束增强超滤处理采出水

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摘要

A water treatment approach combining ultrafiltration (UF) and micellar-enhanced ultrafiltration (MEUF) techniques was used for the removal of organic contaminants in field produced water samples from Canada and the United States. Free oil droplets and suspended solids were separated by initial UF treatments while MEUF was necessary for the removal of dissolved organics. It was shown that the amphiphilic characteristics of someorganics commonly existing in produced water contributed to lowering the critical micelle concentration (CMC) of the surfactant employed. Lower surfactant concentrations could, therefore, be employed leading to lower fouling and back contamination and higher permeate flux. In addition, the incorporation of organic contaminants into the structure of cetylpyridinium chloride (CPC) micelles resulted in larger size and higher dissolution capacity of the "mixed micelles". The performance of polymeric and ceramic membranes of different molecular weight cutoffs (MWCOs) was evaluated by analyzing the permeate flux, recovery ratio, and solute percent rejection as functions of trans-membrane pressure (TMP). A mathematical model based on Darcy's law and the resistance in-series model successfully described the flux decline as a function of TMP for the two field samples and the two membranes studied.
机译：一种采用超滤（UF）和胶束增强超滤（MEUF）技术相结合的水处理方法，用于去除加拿大和美国现场生产的水样中的有机污染物。游离的油滴和悬浮的固体通过最初的超滤处理而分离，而MEUF是去除溶解的有机物所必需的。结果表明，采出水中通常存在的某些有机物的两亲特性有助于降低所用表面活性剂的临界胶束浓度（CMC）。因此，可以采用较低的表面活性剂浓度，从而导致较低的结垢和反污染以及较高的渗透通量。另外，将有机污染物掺入氯化十六烷基吡啶鎓（CPC）胶束的结构中导致“混合胶束”的较大尺寸和较高溶解能力。通过分析渗透通量，回收率和溶质截留率作为跨膜压（TMP）的函数，评估了不同分子量截留值（MWCO）的聚合物和陶瓷膜的性能。基于达西定律和串联电阻模型的数学模型成功地描述了两个现场样品和两个膜的通量下降与TMP的关系。

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  • 来源
    《Environmental Science & Technology》 |2010年第5期|p.1767-1772|共6页
  • 作者

    ALI DERISZADEH; MAEN M. HUSEIN; rnTHOMAS G. HARDING;

  • 作者单位

    Department of Chemical & Petroleum Engineering, University of Calgary 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4;

    rnDepartment of Chemical & Petroleum Engineering, University of Calgary 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4;

    rnDepartment of Chemical & Petroleum Engineering, University of Calgary 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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