一种处理高浓度含砷废水的新工艺  

A Novel Method for Treatment of Wastewater Containing High-density Arsenic

作　　者：韩旻[1] 孙来九[1] 郭人民[1] 王瑛 

机构地区：[1]西北大学应用化学研究所,陕西西安710069 [2]西安热力公司

出　　处：《化学世界》2003年第5期231-233,共3页Chemical World

基　　金：陕西省教育厅重点科研项目 (96JK0 40 )

摘　　要：通过正交试验研究了用石灰、重金属捕集沉淀剂 DTCR处理高浓度含砷废水的工艺条件 ,并与常规法比较了处理效果和处理费用。结果表明 :该法处理效果好 ,处理后的废水可达标排放 ,同时污泥量大大减少 ,易脱水 ,含水率低 ,降低了后处理的难度和费用 ,并且污泥稳定 ,不产生二次污染 。The optimal conditions for treatment of wastewater containing high density arsenic by using heavy metal chelating agent were found via orthogonal test method. The comparison of efficiency and cost of treatment between this novel method and the conventional method was also carried out. The results showed that the efficiency of the novel method is higher and the treated wastewater can reach the wasterwater discharge standards. Moreover, the amount of sludge is reduced and the post treatment is simplified.

关 键 词：含砷废水 重金属捕集沉淀剂 废水处理 螯合反应 

分 类 号：X781[环境科学与工程—环境工程]