title: Filtration and removal performances of membrane adsorbers.
abstract: Membrane adsorbers are promising candidates for the efficient and effective removal of heavy metals in waste water due to their unattainable adsorption and filtration capabilities. In the present study, zeolite nanoparticles incorporated polysulfone (PSf10) membrane was synthesized by means of non-solvent induced phase separation technique for the removal of lead and nickel ions in water. PSf10 showed a remarkable sorption capability and after repeated (adsorption/desorption)5cycles in batch experiments, it preserved 77% and 92% of its initial sorption capacity for the lead and nickel, respectively. Addition of nanoparticles increased the pore radius of the native PSf from 10 to 19nm, while bovine serum albumin rejection remained unchanged at 98%. Increments in the pore size and enhancement in hydrophilicity caused to increase hydraulic permeability of the native PSf from 23 to 57L/m2hbar. Cross-flow filtration studies revealed that the filtrate concentrations were inversely affected by the initial metal concentration and transmembrane pressure due to reaction limited region. Nonlinear rational regression model perfectly described the filtration behavior of the PSf10 within the experimental range and suggested that lower initial metal concentration and pressure with a short filtration time should be selected for the target response to be minimum.
authors.affiliation: Department of Bioengineering, Manisa Celal Bayar University, Şehit Prof. Dr. İlhan Varank Kampusu, 45140, Yunusemre, Manisa, Turkey. Electronic address: yilmazyurekli@gmail.com.
authors.forename: Yilmaz
authors.initials: Y
authors.lastname: Yurekli
authors.affiliation: Department of Metallurgical and Materials Engineering, Manisa Celal Bayar University, Sehit Prof. Dr. İlhan Varank Kampusu, 45140, Yunusemre, Manisa, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Yildirim
authors.affiliation: Mechanical Engineering Department, Izmir Katip Çelebi University, Balatçık Kampusu, Çiğli, Izmir, Turkey.
authors.forename: Levent
authors.initials: L
authors.lastname: Aydin
authors.affiliation: Mechanical Engineering Department, Izmir Katip Çelebi University, Balatçık Kampusu, Çiğli, Izmir, Turkey.
authors.forename: Melih
authors.initials: M
authors.lastname: Savran
keywords: Cross-flow filtration; Heavy metals removal; Membrane adsorber; Rational regression