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.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2000年第1期22-23,共2页
Environmental Pollution & Control
关键词
废硫酸
萃取
脱色
蒽醌
废水处理
Waste sulfuric acid Extraction Decolorization
