扩张床中生物质颗粒与介质间相互作用的定量评价方法——生物质脉冲响应法  

QUANTITATIVE EVALUATION OF BIOMASS-ADSORBENT INTERACTIONS IN EXPANDED BED——BIOMASS PULSE RESPONSE METHOD

作　　者：钟丽娜[1] 林东强[1] 吕淼华[1] 姚善泾[1] 

机构地区：[1]浙江大学化学工程与生物工程学系,浙江杭州310027

出　　处：《化工学报》2004年第11期1908-1911,共4页CIESC Journal

基　　金：国家自然科学基金 (No 2 0 2 0 60 2 9);教育部留学回国人员科研启动基金资助项目~~

摘　　要：The biomass pulse-response method was established and the biomass transmission index was introduced as a quantitative parameter for evaluating the biomass-adsorbent interactions in the expanded bed.With baker’s yeast intact cells and cell debris as the model biomass and anion exchanger Streamline DEAE as the model adsorbent, a series of factors were investigated to optimize the evaluation method.The appropriate operation conditions were chosen as the OD 600 of biomass pulse at the range of 0.5—0.6, and pulse loading at 80% volume of sedimented bed, expansion factor at 2.5.The method was then used to study the influence of ionic strength of fluid phase on the biomass-adsorbent interactions.The consistent results and slight measurement errors demonstrated that the biomass pulse-response method established in the present work is feasible, reliable and effective for quantitative evaluation of biomass-adsorbent interactions in the expanded bed.The biomass pulse-response method was established and the biomass transmission index was introduced as a quantitative parameter for evaluating the biomass-adsorbent interactions in the expanded bed. With baker's yeast intact cells and cell debris as the model biomass and anion exchanger Streamline DEAE as the model adsorbent, a series of factors were investigated to optimize the evaluation method, The appropriate operation conditions were chosen as the OD600 of biomass pulse at the range of 0.5-0.6, and pulse loading at 80% volume of sedimented bed, expansion factor at 2.5. The method was then used to study the influence of ionic strength of fluid phase on the biomass-adsorbent interactions. The consistent results and slight measurement errors demonstrate that the biomass pulse-response method established is feasible, reliable and effective for quantitative evaluation of biomass-adsorbent interactions in the expanded bed.

关 键 词：扩张床吸附 脉冲响应法 生物质固体颗粒 穿透指数 

分 类 号：TQ028.8[化学工程]