We analyze the performance of membrane filters represented by pore networks using two criteria: (1) total volumetric throughput filtrate over filter lifetime and (2) accumulated foulant concentration in filtrate. first formulate governing equations fluid flow on a general network, we model transport adsorption particles (foulants) within network imposing an advection equation with sink term eac...

This paper compares the difference in membrane flux between direct membrane filtration and coagulation-membrane filtration, and investigates the removal of organics of different molecular weight by coagulation-membrane filtration process, in turn studies the fouling removal mechanism of coagulation process. The results indicate that for COD removal from raw water, coagulation is effective mainl...

The aim of this article is to review the recent progress in coupling membrane separation and electrochemical technologies for water treatment. Process integration strategies have been classified three groups. first group deals with electrocoagulation electrooxidation as pretreatment separation, most cases aimed at reducing fouling decay permeate flux porous ultrafiltration membranes. second ded...

The performance of an optimized tree-type cylindrical-shaped nanoporous fltering membrane proposed in the former study is analytically investigated for varying operational parameter values. Across the membrane thickness, this membrane has two-leveled tree-structured pores including one trunk pore and the multiple branch pores. The physical properties of the surfaces of ...

The performances of the optimized tree-type cylindrical-shaped nanoporous fltering membranes with six or seven branch pores in each pore tree are analytically studied. The radius Rb,1 of the branch pore for fltration is normally on the 1 or 10 nm scales. The larger trunk pore is for ...

Membrane filtration fouling has become a significant issue that restricts its wide application. The electrocoagulation (EC) technique combines variety of synergistic pollutant removal technologies (including flocculation, redox, and air flotation), which can be an ideal pretreatment process for membrane filtration. In this work, novel Cu2+-doped polypyrrole-coated stainless steel mesh (Cu/PPy–S...

hen the drinking water industry began to utilize membrane filtration (microfiltration and ultrafiltration), common water sources included high-quality, low-turbidity lakes that required minimal treatment. Membrane filtration was able to provide the necessary treatment for turbidity removal without the need to integrate other treatment processes. The success of membrane filtration in this niche ...