冶金废弃物制备絮凝剂的研究  

A Study on Flocculant Preparation Using Metallurgical Solid Wastes

作　　者：李辽沙[1] 伍娟[1] 

机构地区：[1]安徽工业大学安徽省冶金工程与资源综合利用重点实验室,安徽马鞍山243002

出　　处：《有色冶金设计与研究》2007年第2期247-250,共4页Nonferrous Metals Engineering & Research

基　　金：国家自然科学基金(50574003);安徽省自然科学基金(050450105)

摘　　要：冶金废弃物是钢铁生产过程中所产生的固体废弃物,含有大量可利用的有效成分,通过深加工对其进行高附加值回收是“变废为宝”(循环经济)的最佳利用形式,用H2SO4将尾矿酸解,得到含铁硫酸盐与含铝硫酸盐混合溶液,经氧化、水解、聚合最终得到含铁、铝的高分子絮凝剂─工业废水处理用絮凝剂,实验分析确定了所制备的絮凝剂的最佳投药量为35mg/L,适用水样的最佳pH为9.0,絮凝实验结果表明:该絮凝剂的絮凝效果优于PFS、PAC等无机絮凝剂,同时具有用量少、沉降快的优势。Metallurgical solid waste is a kind of solid waste produced from metallurgical production process, containing large amount of available components. It is a promising method to recycle the metallurgical solid waste via high value production. Metallurgical solid waste is dissolved by H2SO4, then ferric aluminum mineral is converted into the acid solution system, which mainly contains ferric ion and aluminum ion. After oxidation,hydrolysis,polymerization, the target product —— flocculant used to depurate industrial waste water, was obtained. The floeculant is tested in imitated water treatment and the result shows that the optimum flocculation condition can be obtained while the concentration of the flocculant is 35mg/L at pH =9.0.Comparod with the other flocculant, it is proved that the flocculation has the better flocculation efficiency than PFS and PAC.

关 键 词：絮凝剂 制备 絮凝实验 

分 类 号：X703[环境科学与工程—环境工程]