کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
152161 456489 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deep-bed filtration model with multistage deposition kinetics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Deep-bed filtration model with multistage deposition kinetics
چکیده انگلیسی

In the present study, a phenomenological model of deep-bed filtration is suggested. It combines an advection-dispersion equation with an equation of nonlinear multistage accumulation kinetics. The model includes dispersion and accounts for temporal and spatial changes in media porosity.It is suggested that at any location inside the column the filter deposit is formed first as an irreversible ripening layer, followed by formation of reversible deposit during the operable stage. The latter continues until the deposit reaches locally its maximum value. Then, filter breakthrough takes place.The equations are solved numerically, using an explicit finite-difference scheme. The results compare favorably with laboratory experiments at an EPA facility, and with field experiments performed by Mekorot–Israeli Water Company.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 163, Issues 1–2, 15 September 2010, Pages 78–85
نویسندگان
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