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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2020.30.2.138

Evaluation of Chemical Resistance and Cleaning Efficiency Characteristics of Multi bore PSf Hollow Fiber Membrane  

Im, Kwang Seop (Department of materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Kim, Tae Han (Pure Envirech Co. Ltd.)
Jang, Jae Young (Pure Envirech Co. Ltd.)
Nam, Sang Yong (Department of materials Engineering and Convergence Technology, Engineering Research Institute, Gyeongsang National University)
Publication Information
Membrane Journal / v.30, no.2, 2020 , pp. 138-148 More about this Journal
Abstract
The purpose of this study was to identify the cleaning efficiency of fouled multi-bore hollow fiber membranes after purification of contaminated water. The PSf (polysulfone) based hollow fiber membrane manufactured by Pure & B Tech Co., Ltd. Was used in this study. The antifouling characteristics during the water treatment were studied using bovine serum albumin (BSA) as a model compound and the chemical resistance was evaluated after long-term impregnation in sodium hypochlorite (NaOCl) solution and Citric acid to understand the long term stability of the membranes. Water permeability and mechanical strength of the membranes after prolonged chemical exposure was measured to observe the change in mechanical stability and long term performance of the membrane. moreover, the recovery efficiency was also evaluated after chemical enhanced backwashing of a membrane contaminated with bovine serum albumin. The PSf hollow fiber membrane exhibited excellent chemical resistance, and it was confirmed that the efficiency of sodium hypochlorite was high as a result of chemical enhanced backwashing.
Keywords
NIPS; PSf; fouling; chemical resistance; chemical enhanced backwashing;
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Times Cited By KSCI : 2  (Citation Analysis)
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