کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
626331 1455445 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A flux enhancing pretreatment for the ultrafiltration of acid whey
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
A flux enhancing pretreatment for the ultrafiltration of acid whey
چکیده انگلیسی

The reduction in permeate flux caused by fouling is a drawback in the operation of membrane systems that can be alleviated using mechanical and electrical methods. Alternatively, physicochemical treatments provoking the elimination of fouling agents have been proposed as effective strategies for the enhancement of flux. A procedure (comprising salt addition, pH and temperature modification and centrifugation) that removes calcium and phosphate salts from acid whey without altering the profile of valuable proteins is presented in this research work. It has been demonstrated through the paper that this pretreatment enhances significantly the permeate flux of whey when cross-flow ultrafiltered through a 50 kDa tubular ceramic membrane both in total recycle and continuous diafiltration mode. For modelling purposes, a resistances in series model was applied to explain the effect of transmembrane pressure and a complete-standard blocking model fitted the experimental data of the variation of permeate flux with time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 245, Issues 1–3, 15 September 2009, Pages 737-742