کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6582072 456353 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hollow fiber ultrafiltration of Ottawa River water: Floatation versus sedimentation pre-treatment
ترجمه فارسی عنوان
اولترافیلتراسیون الیاف توخالی آب رودخانه اتاوا: شناور شدن در مقابل رسوب گذاری قبل از درمان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Coagulation/flocculation/sedimentation is a common form of pre-treatment for UF (ultrafiltration) within water treatment plants, but little research has been conducted on floatation as a part of the pre-treatment. The objective of this study is to compare floatation with sedimentation in the pre-treatment of a water with a high hydrophobic NOM (natural organic matter) content. Fouling tests consisted of multiple filtration/backwashing cycles performed by an automated bench-scale UF hollow fiber membrane system. Alum coagulation coupled with floatation produced the least severe hydraulically irreversible fouling and also produced the highest quality permeate based on TOC (total organic carbon) concentrations. The hydrophobic fraction of NOM was found to affect hydraulically irreversible fouling in the earlier part of the runs while transphilic NOM and particulate organic carbon affected hydraulically reversible fouling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 288, 15 March 2016, Pages 228-237
نویسندگان
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