| 生物絮凝剂(普鲁兰)处理印染废水的研究 |
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| 引用本文： | 王莉.生物絮凝剂(普鲁兰)处理印染废水的研究[J].安徽农业科学,2008,36(5):1972-1973. |
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| 作者姓名： | 王莉 |
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| 作者单位： | 常州工程职业技术学院应用化学技术系,江苏常州,213164 |
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| 摘 要： | 目的]确定生物絮凝剂普鲁兰处理印染废水的最佳絮凝条件,开发有效地处理印染废水的新技术。方法]用新型微生物絮凝剂普鲁兰作为生物絮凝剂,AlCl3溶液作为助凝剂,对印染废水分别进行条件试验和混凝正交试验,寻找最佳絮凝范围和条件,并对不同的普鲁兰用量、助凝剂用量、pH值等6个因素进行了探讨。结果]条件试验表明,普鲁兰与AlCl3的最佳配比为2∶6。CODcr去除率正交分析表明,6个因素对CODcr去除率的影响依次为:混合时间>普鲁兰用量>反应时间>AlCl3>沉淀时间>pH值。最佳絮凝条件为:3g/L普鲁兰、12 g/L AlCl3溶液、pH值6.5、混合时间30 s、反应时间15 min和沉淀时间40 min。结论]在最佳絮凝条件下,印染废水中CODcr去除率达81%。
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| 关 键 词： | 印染废水 微生物絮凝剂 普鲁兰 絮凝 |
| 文章编号： | 0517-6611（2008）05-01972-02 |
| 收稿时间： | 2007-10-29 |
| 修稿时间： | 2007年10月29 |
Study on Disposing Printing and Dyeing Wastewater with Bio-flocculant Pullulan |
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| WANG Li.Study on Disposing Printing and Dyeing Wastewater with Bio-flocculant Pullulan[J].Journal of Anhui Agricultural Sciences,2008,36(5):1972-1973. |
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| Authors: | WANG Li |
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| Abstract: | Objective] The study aimed to confirm the optimum flocculation condition for disposing printing and dyeing waste water with bio-flocculant Pullulan and develop new technology for disposing printing and dyeing waste water effectively.Method] With new type microbial flocculant Pullulan as bio-flocculant,AlCl3 solution as coagulant aid,the conditional and orthogonal coagulation experiments were conducted on the printing and dyeing waste water to seek for the optimum flocculation range and condition.And the 6 factors of different Pullulan dosages,coagulant aid dosages,pH values and so on were discussed.Result] The conditional experiment showed that the optimum ratio of Pullulan and AlCl3 was 2∶6.The orthogonal analysis on removal rate of CODcr showed that the 6 factors influencing CODcr removal rate in order was mixing time > Pullulan dosage > reaction time > AlCl3 > sedimentation time > pH value.The optimum flocculation condition was Pullulan of 3 g/L,AlCl3 solution of 12 g/L,pH value of 6.5,mixing time of 30 s,reaction time of 15 min and sedimentation time of 40 min.Conclusion] Under the optimum flocculation condition,the removal rate of CODcr in printing and dyeing waste water reached 81%. |
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| Keywords: | Printing and dyeing wastewater Microbial flocculant Pullulan Flocculation |
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