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《POLYMERIC MATERIALS SCIENCE & CNGINEERING》 1995-03
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A STUDY ON THE POROUS POLYMER CARRIER FOR MICROORGANISM IMMOBILIZATION

Zheng Bangqian;Zhang Jiehui;Wu Zhongxin(Polymer Research Institute,Chengdu University of Science and Technology,Chengdu) Fang Zhihua;Yang Ping(Department of Chemical and Engineering,Chengdu University of Science and Technology,Chengdu)  
A porous polymer carrier of partially hydroyzed poly(methylacrylate-vinyl acetate-methyl methacrylate) (carrier A) has been prepared by suspension copolymerization and a sequent hydrolysis process.The effects of copolymer composition,the amounts of crosslinking agent and porosity agent,and the hydrolysis condition on the porous structure of the carrier A were studied.The SEM,X-ray and electron diffraction were used to examine the structure of the carrier.The experimental results have shown that the porous structure of the carrier A is strongly dependent upon the composition of copolymer,the amounts of crosslinking agent and NaOH used in hydrolysis.The carrier A can immobilizate the microorganism very well,and the immobilizate microorganisms are mainly located at the outer surface and inside wall of porosity of the carrier A.In the fermentation experiment,the carrier A immobilized microoganism can produce the more amount of methane than other polymer carrier,active carbon or active sludge can.
【Fund】: 国家自然科学基金
【CateGory Index】: O643.36
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