蒽醌生产中废硫酸的萃取脱色处理  

Decolorization of waste sulfuric acid from anthraquinone production process by extraction method

作　　者：张海江[1] 卢建杭[1] 刘维屏[1] 

机构地区：[1]浙江大学环境与资源化学研究所,杭州310027

出　　处：《环境污染与防治》2000年第1期22-23,共2页Environmental Pollution & Control

摘　　要：以萃取法对蒽醌生产中的废硫酸进行脱色处理 ,优化选择萃取剂 ,并对脱色工艺进行初步的探讨。处理前的废硫酸色度约50 0 0倍 ,COD浓度约 30 0 0 0 mg/ L,经过萃取脱色后色度低于 1 50倍 ,去除率 >97% ,COD浓度约 2 50 mg/ L,去除率约为 99% ,硫酸含量约 40 %。同活性炭吸附等方法相比 ,该萃取法具有操作简单、成本低。A new method involving extraction to decolor the waste sulfuric acid discharged from the process of anthraquinone production was described.Under the optimization conditions of extraction agents and operation,the color and organic components of waste acid were efficiently removed.The color removal efficiency was more than 97 % and COD removal efficiency was about 99 %.Comparing with the tradition method,such as activated carbon adsorption process,the extraction method was more convenient and efficient.

关 键 词：废硫酸 萃取 脱色 蒽醌 废水处理 

分 类 号：X783[环境科学与工程—环境工程]