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当前位置: 首页 > 文章 > 生物絮凝剂(普鲁兰)处理印染废水的研究 安徽农业科学 2008,36 (5) 1972-1973
Position: Home > Articles > Study on Disposing Printing and Dyeing Wastewater with Bio-flocculant Pullulan Journal of Anhui Agricultural Sciences 2008,36 (5) 1972-1973

生物絮凝剂(普鲁兰)处理印染废水的研究

作  者：
王莉
单  位：
常州工程职业技术学院应用化学技术系
关键词：
印染废水;微生物絮凝剂;普鲁兰;絮凝
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%。
译  名：
Study on Disposing Printing and Dyeing Wastewater with Bio-flocculant Pullulan
作  者：
WANG Li(Department of Applied Chemistry Technology,Changzhou Institute of Engineering,Changzhou,Jiangsu 213164)
关键词：
Printing and dyeing wastewater;Microbial flocculant;Pullulan;Flocculation
摘  要：
[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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