| 一株高效脱硫菌的筛选及性能研究 |
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| 引用本文： | 李浪,李潮舟,屈建航,陈允.一株高效脱硫菌的筛选及性能研究[J].环境科学与技术,2012(Z2):70-73. |
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| 作者姓名： | 李浪 李潮舟 屈建航 陈允 |
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| 作者单位： | 河南工业大学生物工程学院;河南省轻工业设计院;上海海洋大学海洋科学学院 |
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| 基金项目： | 国家自然科学青年基金项目(31000065);河南省教育厅自然科学研究计划项目(2011B180012) |
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| 摘 要： | 生物法烟气脱硫技术具有独特的优势,高效菌株的筛选是重要条件。从污水处理厂活性污泥中分离到一株高效亚硫酸盐还原细菌SRB,该菌为兼性厌氧菌、弧状菌体、不产芽孢、革兰氏阴性,结合菌落形态等特征,判定为脱硫弧菌属。以单因素实验考查了pH、温度、SO32-浓度、培养时间对脱硫效率的影响,正交实验法确定了最佳工艺条件和影响因素顺序。结果表明,影响该菌株脱硫能力大小的因素顺序为SO32->温度>pH>时间,最佳脱硫条件为温度30℃、SO32-浓度为4 500 mg/L、pH 6.0、时间4 d,该优化条件下的脱硫效率为81.4%。
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| 关 键 词： | 脱硫菌 工艺条件 正交实验 生物法烟气脱硫 |
Isolation and Performance Study of an Efficient Desulfurization Bacterium |
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| LI Lang,LI Chao-Zhou,QU Jian-Hang,CHEN Yun.Isolation and Performance Study of an Efficient Desulfurization Bacterium[J].Environmental Science and Technology,2012(Z2):70-73. |
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| Authors: | LI Lang LI Chao-Zhou QU Jian-Hang CHEN Yun |
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| Institution: | 1(1.College of Biological Engineering,Henan University of Technology,Zhengzhou 450001,China;2.College of Marine Science,Shanghai Ocean University,Shanghai 201306,China;3.Henan Design Institute of Light Industry,Zhengzhou 450003,China) |
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| Abstract: | Microbial flue gas desulfurization technology has particular advantages,and screening of efficient strain is an important precondition.A sulfate reducing bacterial strain named SRB was isolated from the sludge collected in a sewage plant.This strain was facultative anaerobic,short rod or arc-shaped,Gram-negative and no spore forming,which was determined as Desulfovibrio sp.The effect of pH,temperature,concentration of SO32-and time on desulfurization was studied and optimized by a L9(34) orthogonal design.Results showed that the sequence of affecting desulphurization ability of strain SRB was concentration of SO32-,temperature,pH and time;the final optimized conditions were 30 ℃,4 500 mg/L SO32-,pH 6.0 and 4 d,with a optimized desulphurization ability of 81.4%. |
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| Keywords: | desulfurization strain orthogonal design microbial gas desulfurization |
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