饮用水源突发性苯胺污染应急处理技术研究

Study on emergency treatment of the sudden aniline pollution of drinking water sources

分别从水样浓度、pH、反应时间、药剂投加量以及两者联用时的投加顺序等方面研究了粉末活性炭、高锰酸钾以及两者联合使用时对苯胺的去除效果。结果表明,当污染发生时,高锰酸钾和粉末活性炭联用处理技术是可行的;先投加粉末活性炭再加高锰酸钾处理比先投加高锰酸钾再投加活性炭的去除效果好;当水样pH在中性条件下,粉末活性炭和高锰酸钾联用处理技术的去除效果好;应急处理的反应时间是30min。

Bach experiments were carried out using potassium permanganate and powdered activated carbon to treat aniline containing water. Effect of aniline concentration, solution pH, reaction time, reagent dosage, reagent adding sequence on aniline removal efficiency was investigated. The experiment results could provide reference for emergency treatment of the sudden aniline pollution of drinking water sources. Results showed that it was feasible to use potassium permanganate and powder activated carbon for emergency treatment of the sudden aniline pollution. When the potassium permanganate and powdered activated carbon were used jointly in emergency pollutant treatment, the aniline removal rate was relative high if adding the powdered activated carbon before potassium permanganate. The composition of potassium permanganate and powdered activated carbon presented perfect aniline removal efficien cy especially under neutral conditions. The optimum treatment time was 30 rain.