盐酸掺杂聚苯胺处理酸性染料废水的处理效果

Effectiveness of acid-dye waste water treatment by hydrochloride polyaniline

印染废水是一种较难处理的工业废水,具有有机物含量高、色度大、成分复杂、排放量大等特点。用弱酸性艳红B染料溶液模拟染料废水,研究盐酸掺杂聚苯胺处理酸性染料废水的效果。研究了染料废水的初始质量浓度、吸附时间、温度和pH值对吸附效果的影响。实验结果表明:提高弱酸性艳红B的初始质量浓度有利于其去除率的提高,在吸附温度为45℃,吸附时间为3 h,pH值为4时,盐酸掺杂聚苯胺对弱酸性艳红B染料废水的去除率可以达到96%以上,吸附后经过盐酸再生的聚苯胺去除率仍可以达90%以上。

The dyeing wastewater is a kind of industrial wastewater which is difficult to be treated because of its high concentration of organic,dark colority,complicated component and high emission.The effectiveness of acid-dye waste water treated by hydrochloride polyaniline was investigated in this paper. The acid-dye waste water was simulated with C. I. acid red solution and the initial concentration of C. I. acid red dye waste water,the influence of adsorption time,temperature and pH value on treatment effect were investigated in detail. The conclusion can be drawn that： improvement of the C. I. acid red dye waste water initial concentration was beneficial to the removal rate improvement. When the adsorption temperature was 45 ℃,the adsorption time was 3 h and the pH value was 4,the removal rate was higher than 96%. The removal rate can reach above 90% by the regenerated polyaniline which was treatment by hydrochloric acid.