【摘要】 本实验使用二氧化氯对水中苯胺的去除进行了研究,考察了反应时间、pH、温度以及二氧化氯用量对苯胺去除率的影响,并通过正交实验设计确定了二氧化氯去除苯胺的最佳操作条件为:pH值为5.8,苯胺与二氧化氯的浓度比为3∶10,反应时间为30 min,温度为35℃时,苯胺的去除率最佳,达到73.26%.同时对反应过程中产生的中间产物也进行了实验研究,可知中间产物是苯醌,当苯胺与二氧化氯的浓度比为1∶7时对苯醌的去除率达到最高.更多还原

【Abstract】 Chlorine dioxide was employed to treat aniline in this experiment.The effects of reaction time,pH,temperature and ClO₂ dosage on removal efficiency of aniline were investigated.Through the orthogonal experiments,the optimum conditions were determined as:pH5.8,dosage ratio between ClO₂ and aniline was 10∶3,reaction time was 30 min and the reaction temperature 35 ℃ when the highest removal efficiency of aniline reached 73.26%.Moreover,the intermediate products formed in the reaction processes were studied,too.And it was found that the main intermediate product was benzoquinone which could be removed by ClO₂ when the reaction concentration ratio between ClO₂ and aniline was 7∶1.更多还原