氯化锌法制备薏米秸秆活性炭工艺研究  

Process Research on Preparation of Activated Carbon from Waste straw

作　　者：龙成梅 成晓东 龙明腾 Long Chengmei;Cheng Xiaodong;Long Mingteng(School of Chemistry and chemical engineering,QianNan Normal University of Nationalities,Guizhou Duyun 558000)

机构地区：[1]黔南民族师范学院化学化工学院,贵州都匀558000

出　　处：《云南化工》2020年第8期46-47,51,共3页Yunnan Chemical Technology

基　　金：贵州省联合基金项目(黔科合LH字[2015]7715)。

摘　　要：以废弃薏米秸秆为原料,用氯化锌活化法制备活性炭。以其对模拟废水中铅离子的吸附率为指标,通过正交实验优化制备工艺。结果表明,氯化锌法制备薏米秸秆活性炭的最适条件是:料液比1∶1(g/mL)、氯化锌质量分数30%、活化温度500℃、活化时间90min。此条件下,薏米秸秆活性炭对模拟废水中铅离子的去除率为98.62%。Using the waste straw of Job's tears as raw material and zinc chloride as activator to prepare activatedcarbon Zinc Chloride.The optimum technology parameters were determined by the orthogonal test.The study showed that the best conditions for preparing activated carbon from Job's tears by zinc chloride were:the ratio of material to liquid was 1:1,the concentration of zinc chloride was 30%,activation temperature was 500℃and activation time was 90min.Under these conditions,the removal rate of Pb2+in waste water is up to 98.62%.

关 键 词：薏米秸秆 氯化锌 活性炭 吸附率 

分 类 号：TQ424.1[化学工程]