固体聚合硫酸铁制备及其处理选矿废水的研究.pdfVIP

第 34 卷 第 1 期 广西大学学报 : 自然科学版 Vol . 34 ,No . 1 2009 年 2 月 　 Journal of Guangxi University : Nat Sci Ed Feb . ,2009 文章编号 :100 17445 (2009) 0 1006304 固体聚合硫酸铁制备及其处理选矿废水的研究 吴烈善 ,李 　楠 ,伍敏莉 ,杨 　彦 (广西大学 环境学院 , 广西 南宁 530004) ( ) 摘要 :采用钛白生产中的副产品绿矾 FeSO ·7 H O 为原料 ,在一定的温度下经氧化剂氧化 ,再加入硫酸和一 4 2 定量的催化剂经水解聚合 、静置熟化制备固体聚合硫酸铁 。通过单因素实验研究确定了硫铁比、反应温度 ,氧 化时间这三个因素的取值范围 ,进而用混合均匀实验 ,确定了制备固体聚合硫酸铁的最佳工艺条件 。产品盐 基度为 13 . 38 % ,对浊度大于 2000 N TU 的选矿废水的除浊率达 99 . 50 %. 关键词 :固体聚合硫酸铁 ;混凝剂 ;盐基度 ;浊度 ;选矿废水 中图分类号 : TQ 138. 1 ; X781 　　　文献标识码 :A Preparation of sol id polyf erric sulfate and its perf ormance in processing ore dressing waste water WU Lieshan ,L I Nan ,WU Minli , YAN G Yan (College of t he Enviroment , Guangxi University , Nanning 530004 ,China) Abstract : The copperas , a raw material , was oxidized by t he oxidant under cert ain temperat ure , and t hen t he sulfuric acid and t he cat alyst were added to t he mixt ure . After t he hydrolisis poly merization curing ,t he polymeric ferric sulfate ( PF S) was p rep ared . Based on t he single factor ex periment s which were designed for t he optimization of t he reaction temperat ure , t he oxidition time ,and t he ratio of sulfate and iron ,t he optimized technological condition for t he p rep aration of t he solid PF S was determined t hrough t he mix uniform design experiment s. The basicity of t he p roduct was 1318 % and t he remocal rate of t urbidity of one dressing waste water (in which t he t urbidit y was more