کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
624520 1455405 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrodynamics and mass transfer simulation of wastewater treatment in membrane reactors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Hydrodynamics and mass transfer simulation of wastewater treatment in membrane reactors
چکیده انگلیسی

This work presents CFD simulation of hollow-fiber membrane reactors (HFMRs) for separation of ammonia from aqueous solutions. Simulations are carried out to predict ammonia transport in a membrane reactor. Mass transfer and hydrodynamics of the system were investigated through solving conservation equations. The conservation equations solved here were the Navier–Stokes and continuity equations. Finite element analysis was applied for numerical solution of the system equations. UMFPACK was chosen as linear solver and showed good convergence. The influence of effective parameters on the mass transfer and hydrodynamics of the ammonia removal was investigated. Simulation results showed that total flux of ammonia decreases sharply in the region near the membrane inlet. Hydrodynamic investigations also revealed that velocity reached fully developed after a short distance from the reactor entrance. The results of this work confirmed that feed and solvent velocities are the most important parameters in the removal of ammonia. It is also indicated that the numerical procedure is useful and capable to predict the performance of hollow-fiber membrane reactors for separation of ammonia from aqueous solutions.

Figure optionsDownload as PowerPoint slideHighlights
► Development of a new approach for simulation of membrane reactors.
► CFD simulation of wastewater treatment using hollow-fiber membrane reactors.
► Application of finite element analysis in membrane reactors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 286, 1 February 2012, Pages 290–295
نویسندگان
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