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生物法净化低浓度SO₂气体的生化反应过程控制因素研究

Study on Controlling Factors in Biochemical Reaction Process of Degenerating Low Concentration SO₂ with Microorganism Method

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【Author】 WANG Yan-yan1,XIA Rui2,ZHANG Ming-yu3,HUANG Bing3,CHEN Liang3 (1.Department of Chemistry,College of Sciences,Kunming University of Science and Technology,Kunming 650093,China; 2.Kunming Jinyu Environmental Engineering Technology Co.Ltd,Kunming 650000,China; 3.Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China)

【机构】昆明理工大学理学院化学系；昆明锦钰环保科技有限公司；昆明理工大学环境科学与工程学院；昆明理工大学环境科学与工程学院云南昆明650093；云南昆明650000；云南昆明650093；

【摘要】通过考察固定化微生物和游离菌净化低浓度SO2气体的宏观、微观反应速率,对底物在固定化微生物小球中的扩散传递模型进行了研究,确定了传质控制是影响固定化微生物催化活性的主要因素,固定化微生物小球中底物浓度沿小球半径由外向内逐渐降低的主要原因是内扩散阻力的存在。更多还原

【Abstract】 The diffuse transmission model of the substrate in the immobilized microorganism balls was studied through surveying macroscopical and microcosmic reaction rate of purifying low concentration SO2 with immobilized microbial biomass and free microbe.It was established that the mass transfer control was the key factor of affecting the catalytic activity of immobilized microorganisms;the internal diffusion resistance was the prime reason why the substrate concentration reduced generally along the crown radiu in the immobilized microorganism balls.更多还原