磁性铁-黑茶渣基活性炭的制备及对六价铬废水的吸附探究
Preparation of Magnetic Iron-black Tea Dregs Based Activated Carbon and Its Effect on the Adsorption of Adsorption of Hexavalent Chromium Wastewater
苏晓琳 1陈冰虹 1邱文菲 1吴梓博 1余振铵 1黄锦勇 1罗俊斌 2郭海侠2
作者信息
- 1. 北京理工大学珠海学院,广东 珠海 519088
- 2. 珠海汇华环境有限公司,广东 珠海 519000
- 折叠
摘要
以黑茶渣为原料,ZnCl2溶液为活化剂制备出黑茶渣基活性炭,后用化学共沉淀法赋予活性炭磁性物质,制得磁性铁-黑茶渣基活性炭.探究黑茶渣活性炭和铁盐的不同配比、搅拌速度、陈化温度、陈化时间等单因素对其碘吸附性能的影响,得出最佳制备条件:配比为 4∶1,搅拌速度为700 rpm,陈化温度为60˚C,陈化时间为80 min.通过改变pH、转速和投加量,探究3种活性炭对六价铬废水的吸附效果.
Abstract
The black tea dregs were used as the raw material,and ZnCl2 solution was used as the activator to prepare black tea dregs-based activated carbon,and then the magnetic iron-black tea dregs-based activated carbon was obtained by using the chemical co-precipitation method to endow the activated carbon with magnetic substances.We investigated the effects of single factors such as different ratios of black tea dregs activated carbon and iron salt,stirring speed,aging temperature and aging time on its iodine adsorption performance,and came up with the optimal preparation conditions-ratio:4∶1,stirring speed:700 rpm,aging temperature:The optimum preparation conditions were found to be:ratio:4∶1,stirring speed:700 rpm,aging temperature:60℃,aging time:80 min.The adsorption effect of the three activated carbons on hexavalent chromium wastewater was investigated by changing the"pH,rotational speed,and dosage".
关键词
磁性活性炭/茶渣/六价铬吸附Key words
magnetic activated carbon/tea dregs/hexavalent chromium adsorption引用本文复制引用
基金项目
2022年度广东省科技创新战略专项资金项目(攀登计划专项)()
2022年广东省本科高校质量工程建设项目([2021]429)
出版年
2024
NETL
NSTL
万方数据