| 微生物絮凝剂产生菌的筛选及其絮凝特性 |
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| 引用本文： | 邱忠平,茆灿泉,刘源月,杨立中,王艳捷,肖开勇.微生物絮凝剂产生菌的筛选及其絮凝特性[J].环境工程学报,2009,3(7):1185-1188. |
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| 作者姓名： | 邱忠平 茆灿泉 刘源月 杨立中 王艳捷 肖开勇 |
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| 作者单位： | 1. 西南交通大学生物工程学院,成都,610031
2. 南京大学国际地球系统科学所,南京,210093 |
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| 基金项目： | 国家“863”高技术研究发展计划项目（2006AA06Z353）；四川省科技厅科技支撑计划项目（2008SZ0008）；西南交通大学科学研究基金资助项目（2007B10） |
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| 摘 要： | 采用常规的微生物学方法，从垃圾渗滤液中筛选到一株高效微生物絮凝剂产生菌LB1，根据其形态学和生理生化特征初步鉴定该菌株属于假单胞菌属，命名为Pseudonomas sp. LB1。LB1所产微生物絮凝剂的絮凝特性的研究结果表明，LB1的最佳产絮凝时间为96 h，所产絮凝活性物质主要是其生长过程中的胞外分泌物和细胞生长后期的次级代谢产物，菌体细胞本身具有一定的助凝作用。LB1所产絮凝剂最佳加样量为3％（体积分数V/V）；对pH的适应范围较宽，在4～10之间具有较高的絮凝活性，均大于75％；温度为25℃时絮凝率为86.3％，在25～60℃之间，絮凝率基本保持稳定；LB1所产絮凝剂对几种废水具有较好的絮凝效果。
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| 关 键 词： | 微生物絮凝剂 絮凝活性 假单胞菌 筛选 废水处理 |
| 收稿时间： | 1/6/2009 12:00:00 AM |
Screening of a bioflocculant-producing strain and its flocculation characteristics |
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| Qiu Zhongping,Mao Canquan,Liu Yuanyue,Yang Lizhong,Wang Yanjie and Xiao Kaiyong.Screening of a bioflocculant-producing strain and its flocculation characteristics[J].Techniques and Equipment for Environmental Pollution Control,2009,3(7):1185-1188. |
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| Authors: | Qiu Zhongping Mao Canquan Liu Yuanyue Yang Lizhong Wang Yanjie and Xiao Kaiyong |
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| Institution: | College of Bioengineering, Southwest Jiaotong University, Chengdu 610031,China,College of Bioengineering, Southwest Jiaotong University, Chengdu 610031,China,International Institute for Earth Science System of Nanjing University, Nanjing 210093,China,College of Bioengineering, Southwest Jiaotong University, Chengdu 610031,China,College of Bioengineering, Southwest Jiaotong University, Chengdu 610031,China and College of Bioengineering, Southwest Jiaotong University, Chengdu 610031,China |
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| Abstract: | A high effective bioflocculation,named LB1,was isolated and screened from the leachate by routine micro-method.The strain was identified as Pseudonomas sp.LB1 based on the morphologic and physiological-biochemical characteristics of the strain.The biological characteristics of micro-flocs produced by LB1 were investigated.The results show that the optimal production period of the micro-floc by using LB1 is 96 hours;and the products,found in the fermentation liquor,comprise the extracellular organic matter(E... |
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| Keywords: | microbial flocculant flocculating activity Pseudonomas sp LB1 screening wastewater treatment |
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