| 铝灰酸溶法制备聚合氯化铝 |
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| 引用本文： | 胡保国,蒋晨,赵海侠,方晓波,李松.铝灰酸溶法制备聚合氯化铝[J].化工环保,2013,33(4):325-329. |
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| 作者姓名： | 胡保国 蒋晨 赵海侠 方晓波 李松 |
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| 作者单位： | 浙江农林大学环境与资源学院，浙江杭州311300 |
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| 基金项目： | 浙江省大学生科技创新团队项目，国家水专项课题资助项目 |
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| 摘 要： | 以铝灰为原料采用酸溶法制备了聚合氯化铝（PAC），并通过正交实验优化了PAC制备的最佳工艺参数，并考察了自制PAC对废水COD的去除效果。制备PAC的最佳工艺条件为：m（铝灰）∶V（HCl）∶V（H2O）=10∶20∶40，反应温度85℃，反应时间2.5h，搅拌转速80r/min，熟化时间30h，熟化温度60℃。采用生石灰可高效、经济地调节产品的盐基度，且产品在处理印染废水时COD去除率达64.7%，高于市售同类产品。
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| 关 键 词： | 铝灰 聚合氯化铝 盐基度 酸溶法 絮凝剂 综合利用 |
| 收稿时间： | 2013-08-29 |
Preparation of Polyaluminium Chloride from Alumina Ash by Acid Dissolution Method |
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| Hu Baoguo
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Jiang Chen
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Zhao Haixia
,
Fang Xiaobo
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Li Song.Preparation of Polyaluminium Chloride from Alumina Ash by Acid Dissolution Method[J].Environmental Protection of Chemical Industry,2013,33(4):325-329. |
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| Authors: | Hu Baoguo Jiang Chen Zhao Haixia Fang Xiaobo Li Song |
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| Institution: | School of Environment and Resources,Zhejiang Agriculture and Forestry University,Hangzhou Zhejiang 311300,China |
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| Abstract: | Polyaluminium chloride (PAC) was prepared from aluminum ash by acid dissolution method. The process parameters were optimized through orthogonal tests,and the effect of the self-made PAC on the removal of wastewater COD was studied. The optimum preparation conditions are as follows：m(aluminum ash)∶V(HCl)∶V(H2O)=10∶20∶40,reaction temperature 85 ℃,reaction time 2.5 h,stirring speed 80 r/min,curing time 30 h,curing temperature 60 ℃. The basicity of the product can be adjusted efficiently and economically by quicklime. The COD removal rate of dyeing wastewater reaches 64.7%,which is higher than that of similar flocculants. |
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| Keywords: | alumina ash polyaluminium chloride basicity acid dissolution method flocculant comprehensive utilization |
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