| 产絮凝剂双菌复合发酵体系的研究以及在水处理中的应用 |
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| 引用本文： | 林海,郝洁,侯瑞荣,张世勇.产絮凝剂双菌复合发酵体系的研究以及在水处理中的应用[J].北京科技大学学报,2007(Z2). |
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| 作者姓名： | 林海 郝洁 侯瑞荣 张世勇 |
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| 作者单位： | 北京科技大学土木与环境工程学院 北京100083 |
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| 摘 要： | 从土壤和活性污泥中筛选到三株絮凝剂产生菌,将其进行双菌混合培养的正交试验,构建出了比单一菌所产絮凝剂絮凝活性更高的复合菌群LH,通过16SrRNA序列分析,初步判定二菌分别为Micrococcus sp.和Paenibacill usvelaei菌.对其性质的初步研究发现,复合菌LH所产絮凝剂MBF-LH为胞外代谢产物,其热稳定性好.LH产絮凝剂的最适碳源、最适培养温度、最适pH值和通气量分别为蔗糖、30℃、pH8和120r/min恒温振荡培养.培养基中添加KCl、CaSO4、K2HPO4能明显提高发酵液絮凝率.絮凝剂MBF-LH处理废水时具有用量少、絮凝率高的特点.
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| 关 键 词： | 微生物絮凝剂 复合菌群 16S rRNA 培养条件优化 |
Investigations on producing bioflocculant by double microorganisms and its application on water treatment |
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| LIN Hai,HAO Jie,HOU Ruirong,ZHANG Shiyong School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing ,China.Investigations on producing bioflocculant by double microorganisms and its application on water treatment[J].Journal of University of Science and Technology Beijing,2007(Z2). |
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| Authors: | LIN Hai HAO Jie HOU Ruirong ZHANG Shiyong School of Civil and Environmental Engineering University of Science and Technology Beijing Beijing China |
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| Institution: | LIN Hai,HAO Jie,HOU Ruirong,ZHANG Shiyong School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | |
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| Keywords: | microbial flocculants multiple microorganisms 16SrRNA culture condition optimizing |
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