Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15026
Title: Development of hollow fiber membrane bioreactor for the cometabolic transformation of 4-chlorophenol in the presence of phenol
Authors: LI YI (HT016027U)
Keywords: Hollow fiber membrane, Cometabolism, Transformation, Biological activated carbon, Phenol, 4-chlorophenol
Issue Date: 11-Mar-2006
Source: LI YI (HT016027U) (2006-03-11). Development of hollow fiber membrane bioreactor for the cometabolic transformation of 4-chlorophenol in the presence of phenol. ScholarBank@NUS Repository.
Abstract: Polysulfone (PS) hollow fiber membranes bioreactors, as well as impregnated with Granular Activated Carbon (GAC), were fabricated, characterized, and developed for the cometabolic biotransformation of 4-chlorophenol (4-cp) in the presence of phenol, utilizing the principles of cell immobilization and biological activated carbons (BAC) process. Pseudomonas putida ATCC49451 were immobilized in asymmetric polysulfone hollow fiber membranes through entrapment within the porous regions and through attachment on the membrane surfaces. With cell immobilization, phenol and 4-cp were transformed at concentrations where suspension cells cannot grow and transform the substrates, both under batch and continuous modes. Hybrid hollow fiber membrane bioreactor was further set up with the incorporation of GAC. Study under different operation conditions showed that the combination of cell immobilization and biological activated carbon increased the bioreactor performance effectively due to the bioregeneration of GAC and enhanced mass transport in the hybrid hollow fiber membrane bioreactor.
URI: http://scholarbank.nus.edu.sg/handle/10635/15026
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