| 无机-有机复合絮凝剂PST的制备及其脱色性能 |
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| 引用本文： | 张淑娟,杨宇,林亲铁.无机-有机复合絮凝剂PST的制备及其脱色性能[J].环境科学与技术,2013(5):105-107. |
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| 作者姓名： | 张淑娟 杨宇 林亲铁 |
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| 作者单位： | 中山大学环境科学与工程学院;广州市固体废物管理中心;广东工业大学环境科学与工程学院 |
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| 基金项目： | 广东省自然科学基金项目(990238);广东省科技计划项目(2002C31625);佛山市科技发展专项资金(200606007) |
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| 摘 要： | 以天然高分子淀粉、铝盐、铁盐为主要原料,制备了无机-有机复合絮凝剂PST。采用正交实验的方法,以模拟印染废水的COD去除率和脱色率为指标,评价PST的絮凝性能。结果表明,PST的最优制备条件为Al3+/淀粉(质量比)=1:1、Fe3+/淀粉(质量比)=0.1:1,pH=1,60℃恒温磁力搅拌器反应4 h。在以上最佳条件下,COD去除率高达87.86%,脱色率为95.40%。
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| 关 键 词： | 复合絮凝剂 正交试验 脱色率 |
Preparation of Inorganic-organic Compound Flocculants PST and Its Decolorization Capability |
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| ZHANG Shu-juan,YANG Yu,LIN Qin-tie.Preparation of Inorganic-organic Compound Flocculants PST and Its Decolorization Capability[J].Environmental Science and Technology,2013(5):105-107. |
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| Authors: | ZHANG Shu-juan YANG Yu LIN Qin-tie |
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| Institution: | 1.School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou 510275,China; 2.Guangzhou Solid Waste Management Centre,Guangzhou 510030,China;3.School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | With natural polymer starch,aluminum salt,molysite as raw materials,the modified organic-inorganic compound flocculants PST was synthesized.Using COD removal rate and decoloration rate as indexes,flocculent property of PST was evaluated by orthogonal experiment.Results indicated that the best technological conditions of preparing compound flocculants PST was the mass ratio of starch and aluminum 1:1,mass ratio of starch and iron 1:0.1 under the constant temperature of 60 ℃ and reaction solution stirred for 4 h by magnetic force stirrer.Under the conditions,CODCr removal rate was 87.86% and decoloration rate 95.40%. |
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| Keywords: | compound flocculants orthogonal experiment decoloration rate |
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