Preparation of N, O-carboxymethyl Chitosan Composite Nanofiltration Membrane and Its Rejection Performance for the Fermentation Effluent from a Wine Factory  

作　　者：苗晶 李玲玲 陈国华 高从堦 董声雄 

机构地区：[1]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China [2]School of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, China [3]School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China [4]School of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China

出　　处：《Chinese Journal of Chemical Engineering》2008年第2期209-213,共5页中国化学工程学报（英文版）

基　　金：the Special Funds for Major State Basic Research Program of China(2003CB615706)

摘　　要：N, O-carboxymethyl chitosan （NOCC） composite nanofiltration （NF） membranes were prepared by coating and cross-linking. The fermentation effluent from a wine factory was treated with the resulting NOCC/polysulfone （PSF） composite NF membranes. The permeate flux and the removal efficiencies of the resulting NF membranes for the color, chemical oxygen demand （CODcr）, total organic carbon （TOC）, and conductivity of the fermentation effluent were investigated in relation to the driving pressure, the feed flow, and the operation time. The permeate flux and the removal efficiencies were found to increase with the increase of the driving pressure or the feed flow. At 0.40 MPa and ambient temperature the removal efficiencies were 95.5%, 70.7%, 72.6%, and 31.6% for color, CODcr, TOC, and conductivity, respectively. The membrane was found to be stable over a 10-h ooeration for the fermentation effluent treatment.N， O-carboxymethyl 脱乙酰几丁质(NOCC ) 合成 nanofiltration (NF ) 膜被涂层和交联准备。来自一家酒工厂的发酵自河与产生 NOCC/polysulfone (PSF ) 被对待合成 NF 膜。permeate 流动和为颜色，化学需氧量(CODCr ) ，全部的器官的碳(TOC ) ，和发酵自河的电导率的产生 NF 膜的移动效率在与开车压力， feed 流动，和操作时间的关系被调查。permeate 流动和移动效率被发现随开车压力或 feed 流动的增加增加。在 0.40 MPa 和环境温度，移动效率分别地为颜色， CODCr， TOC，和电导率是 95.5% ， 70.7% ， 72.6% ，和 31.6% 。膜被发现在为发酵废水处理的 10-h 操作上稳定。

关 键 词：N O-carboxymethyl chitosan composite nanofiltration membranes fermentation effluent removal efficiencies 

分 类 号：O6[理学—化学]