| 聚硫酸铁铝制备改进及其处理重金属废水 |
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| 引用本文： | 唐文伟,桂文池,曾新平. 聚硫酸铁铝制备改进及其处理重金属废水[J]. 深圳大学学报(理工版), 2011, 28(3): 276-282 |
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| 作者姓名： | 唐文伟 桂文池 曾新平 |
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| 作者单位： | 1. 同济大学化学系,上海,200092
2. 同济大学生命科学与技术学院,上海,200092 |
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| 基金项目： | 上海市科委自然科学基金资助项目 |
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| 摘 要： | 以亚铁盐和硫酸铝为原料,采用先氧化后水解聚合方式制备4种固体聚合硫酸铁铝(polyfer-ric-alum inum sulfate,PFAS).考察其表观状态、铁铝形态分布及其对重金属废水的处理效果,确定其优化制备方法及分子式.通过正交试验确定最适处理条件:PFAS和聚丙烯酰胺(polyacrylam ide,PAM)的投量分别为200 mg/L和2.0 mg/L.pH值是影响PFAS处理效果的主要因素,在最适pH值下,PFAS处理含Cu2+、N i2+和Cr(Ⅵ)的单一或混合废水时,对Cu2+和N i2+的去除率分别达到99.89%和99.72%,其残留质量浓度均达排放标准,Cu2+和N i2+的共沉淀有利于去除Cr(Ⅵ).
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| 关 键 词： | 应用化学 废水处理 聚合硫酸铁铝 铁铝分布 絮凝剂 正交试验 重金属 |
Improvement of preparation of PFAS and its effect on treating heavy metal in wastewater |
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| TANG Wen-wei,GUI Wen-chi,ZENG Xin-ping. Improvement of preparation of PFAS and its effect on treating heavy metal in wastewater[J]. Journal of Shenzhen University(Science &engineering), 2011, 28(3): 276-282 |
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| Authors: | TANG Wen-wei GUI Wen-chi ZENG Xin-ping |
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| Affiliation: | TANG Wen-wei1,GUI Wen-chi1,and ZENG Xin-ping2 1)Department of Chemistry Tongji University Shanghai 200092 P.R.China2)School of Life Sciences and Technology Tongji University Shanghai 200092 P.R.China |
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| Abstract: | Taking FeSO4 and Al2(SO4)3 as the raw materials,we prepared four types of solid polyferric-aluminum sulfate(PFAS) by oxidation and hydrolytic polymerization.We studied the surface morphology,the distribution of Fe and Al species and its removal rate of heavy metal,so as to confirm the preparation of PFAS and its formula.In this preparation method,PFAS had the security,stability and efficient flocculating ability.Orthogonal experimental method was used to determine the optimal preparation conditions:the dosa... |
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| Keywords: | applied chemistry waste water treatment polyferric-aluminum sulfate(PFAS) distribution of Fe and Al species flocculation orthogonal test heavy metals |
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