| 微生物絮凝剂改善污泥脱水性能的研究 |
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| 引用本文： | 赵继红,杨劲峰,王清宁,刘从彬. 微生物絮凝剂改善污泥脱水性能的研究[J]. 环境科学与技术, 2009, 32(11). DOI: 10.3969/j.issn.1003-6504.2009.11.021 |
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| 作者姓名： | 赵继红 杨劲峰 王清宁 刘从彬 |
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| 作者单位： | 河南工业大学化学化工学院,河南,郑州,450001;河南工业大学化学化工学院,河南,郑州,450001;信阳市环境保护科学研究所,河南,信阳,464000 |
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| 摘 要： | 从活性污泥中筛选出一株微生物絮凝剂产生菌,该菌在优化培养条件下所产微生物絮凝剂命名为M-127。将M-127用于污泥脱水,并与聚丙烯酰胺、聚合氯化铝以及硫酸铝进行脱水效果对比。试验结果表明,M-127投加量为2mg/L时,污泥沉降性能得到明显改善;该絮凝剂用于污泥脱水的最佳条件是:40mg/LM-127,pH=6.5;在此条件下污泥比阻(SSR)可降至4.71×1010m/kg,脱水率可达96.3%,效果优于PAC、PAM以及Al(2SO)43。
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| 关 键 词： | 微生物絮凝剂 污泥 脱水 比阻 |
Microbial Flocculants for Improving the Dewatering Capability of Sludge |
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| ZHAO Ji-hong,YANG Jin-feng,WANG Qing-ning,LIU Cong-bin. Microbial Flocculants for Improving the Dewatering Capability of Sludge[J]. Environmental Science and Technology, 2009, 32(11). DOI: 10.3969/j.issn.1003-6504.2009.11.021 |
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| Authors: | ZHAO Ji-hong YANG Jin-feng WANG Qing-ning LIU Cong-bin |
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| Abstract: | A new kind of flocculants -producing bacteria was isolated from activated sludge,and microbial flocculants produced by the strain under the optimal culture conditions was named M-127,which was used to improve the dewatering capability of sludge,and compared with PAM,PAC and Al(2SO)43. Results showed that settling capability of the sludge could be improved when M-127 dose was 2mg/L. Under the optimal dewatering conditions of microbial flocculants M-127 dose 40mg/L and pH 6.5,the resulting dewatering percentage reached 96.3%,greater than individual dose of PAM,PAC and Al(2SO4)3. |
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| Keywords: | microbial flocculants sewage sludge dewatering specific resistance |
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