【摘要】 采用纯铁粉和废铁屑对水溶液中六氯乙烷进行还原脱氯实验。结果表明,有顶空存在的反应体系中脱氯率较低;废铁屑对六氯乙烷的脱氯效果较铁粉要好;反应体系初始pH值对铁的还原脱氯作用有强烈的影响,当溶液pH值为酸性时还原效果达到最好。更多还原

【Abstract】 This paper described the reductive dechlorination of hexachloroethane in aqueous solution by fine powders of pure iron and iron scrapes of machine shops. The results showed that the reductive rate was lowered in the presence of a head-space in the reaction system. The apparent rate of dechlorination with the cheaper powders of iron scrapes was higher in comparison with those of the pure iron. The initial pH of the reaction system had significant effects on the dechlorination, and the reductive reaction was favored in acidic solutions.更多还原