کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9680811 1455505 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low pressure membrane processes ∼ doing more with less energy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Low pressure membrane processes ∼ doing more with less energy
چکیده انگلیسی
This paper discusses strategies to reduce energy usage in low pressure membrane processes. Studies on the role of air bubbling to control fouling in submerged membrane systems are described. Factors of importance are shown to include fibre movement and the use of the most appropriate bubble size. Results are given that favour the use of small bubbles, and this is supported by shear stress analysis using particle image velocimetry. It is also shown, for deadend filtration of low solids feed, that the optimal flux based on conventional economics is much greater than the optimal flux based on minimization of energy usage. This observation may be of general applicability and illustrates the capital cost penalty inherent in minimizing environmental impact of membrane processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 185, Issues 1–3, 1 November 2005, Pages 159-165
نویسندگان
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