کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
639742 1456948 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Restructuring the surface of polyurethane resin enforced filter media to separate surfactant stabilized oil-in-water emulsions via coalescence
ترجمه فارسی عنوان
بازسازی سطوح رزین پلی اورتان برای فیلتر کردن مواد فیلتر برای جدا کردن سورفاکتانت امولسیون های نفتی در آب تثبیت شده از طریق همپوشانی
کلمات کلیدی
امولسیون رزین، رطوبت انعطاف پذیری، سورفاکتانت، امولسیون روغن / آب،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
Reported here is a facile resin emulsification method of treating polyurethane enforced filter media by controlling the initial level of solvent volatilization for resin solidification. The treated media are endowed with varying degrees of lipophilicity as determined by their lipophilic to hydrophilic (L/H) values. An optimized treatment condition was pinned for coalescence separation of surfactant-stabilized oil-in-water emulsions using a surfactant free emulsion as the bench mark. The starting separation efficiency was found to depend on the type of surfactant involved in the order of non-ionic surfactant Tween 80 > cationic surfactant cetyl trimethyl ammonium bromide (CTAB) > anionic surfactant sodium dodecyl benzene sulfonate (SDBS). Quartz crystal microbalance (QCM) experiments showed that Tween 80 had the largest adsorption on the polyurethane coating, while least adsorption occurred to SDBS, and mediocre adsorption to CTAB. However, Tween 80 resulted in the lowest time-weighted averaged efficiency as compared to the other surfactants that barely caused any efficiency changes with filtration time. To make the resin emulsification treatment more environmental friendly, more polar solvents were tested, and ethanol was identified as a good alternative to isopropanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 172, 1 January 2017, Pages 59-67
نویسندگان
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