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标题：Adsorption Kinetics of Fe and Mn with Using Fly Ash from PT Semen Baturaja in Acid Mine Drainage
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作者：Indah Purnamasari ; Endang Supraptiah
期刊名称：IJEMS (Indonesian Journal of Environmental Management and Sustainability)
印刷版ISSN：2598-6260
电子版ISSN：2598-6279
出版年度：2017
卷号：1
期号：1
页码：11-14
DOI：10.26554/ijems.2017.1.1.11-14
语种：English
出版社：ARTS Publishing Corp.
摘要：One used method to reduce heavy metal ions in acid mine drainage is to adsorb them by coal fly ash.This research aimed to study the isotherms equilibrium and the adsorpstion kinetics that fit with decreasing metals ion.Acid mine draigane and fly ash were charge into batch coloumn adsorption with specified comparison.Variables investigated were dactivated and activated fly ash,adsorption times (0,20,30,40,50,and 60 minutes),adsorben weights (10,20,30,40,50,and 60 gram),and pH (1,3,5,7,and 9).The results showed that fly ash can be used to reduce the levels of heavy metal ions Fe and Mn.Coal fly ash adsorption model of acid mine drainagefits to Freundlich adsorption isotherm in all condition.First order pseudo kinetics model is suitable for Fe and Mn adsorption processes.The value of adsorption rate constants of Fe and Mn (deactivated fly ash) were 0.2388 min-1 with R2 = 0.4455 and 0.4173 min-1 with R2 = 0.9781,Fe and Mn (activated fly ash) 0.5043 min-1 with R2 = 1 and 0.2027 min-1 with R2 = 0.8803.
关键词：sintetics adsorption;acid mine drainage;fly ash;Langmuir isotherm;Freundlich isotherm