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由于活性炭的吸附性能对不同的化合物有很大的差异,使用普通的活性炭,对成份复杂、浓度极低的恶臭污染的去除这不到很好的净化效果,因此,对活性炭提出了化学改性的要求.本文选取常见恶臭污染物中的氨气和三甲胺,用改性活性炭对其吸附性能进行了试验,并且研究了氨气浓度、床层高度对穿透时间的影响.结果表明,用亚铁盐和铜盐配方改性处理的活性炭对氢气和三甲胺有较好的吸附性能.
As the adsorption capacity of activated carbon has great difference for different compounds, the use of common activated carbon can not achieve good purification effect on the removal of malodourous contaminants with complex composition and extremely low concentration. Therefore, the chemical modification of activated carbon has been proposed The ammonia and trimethylamine in common malodorous pollutants were selected.The adsorption capacity of ammonia and trimethylamine in activated carbon was tested.The influence of ammonia concentration and bed height on the breakthrough time was also studied.The results showed that Activated carbon modified by ferrous salt and copper salt has better adsorption performance for hydrogen and trimethylamine.