کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
623316 | 1455338 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A case study of fouling development and flux reversibility of treating actual lake water by forward osmosis process
ترجمه فارسی عنوان
مطالعه موردی توسعه فساد و برگشت پذیری جریان آب طبیعی دریاچه با فرایند اسمز معکوس
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کلمات کلیدی
اسمز معکوس آب مقطر غیر کلرینه واقعی، فوران غشاء، تمیز کردن هیدرولیکی غشاء،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Non-chlorinated actual brackish lake water was used as feed to examine the fouling behaviour, includes biofouling and cleaning effects of forward osmosis (FO). Fouling experiments were conducted at different filtration time durations on thin film composite (TFC) membrane in FO mode (active layer facing the feed). Fouling was formed on membrane surface and followed an exponential trend during the experimental period. Microbiological assays and fluorescence excitation-emission spectrophotometer were used to examine the details of the foulants and provide information on the physiological state of the membrane foulants in the FO system. The results indicated that the fouling observed was the combination of bacterial biomass (biofouling) and protein-like organic constituents derived from microbial activity (organic fouling). At the end of the 24Â h fouling experiments, the water flux declined by approximately 65% of the initial value. However, the flux was completely recovered to its initial level following hydraulic cleaning by deionized (DI) water; the fouling on the FO membrane is found to be reversible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 357, 2 February 2015, Pages 55-64
Journal: Desalination - Volume 357, 2 February 2015, Pages 55-64
نویسندگان
Youngpil Chun, Francois Zaviska, Emile Cornelissen, Linda Zou,