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

作　　者：苏晓琳 陈冰虹 邱文菲 吴梓博 余振铵 黄锦勇[1] 罗俊斌 郭海侠 Su Xiaolin;Chen Binghong;Qiu Wenfei;Wu Zibo;Yu Zhenan;Huang Jinyong;Luo Junbin;Guo Haixia(Zhuhai College of Beijing Institute of Technology,Zhuhai 519088,China;Zhuhai Huihua Environment Co.,Ltd.,Zhuhai 519000,China)

机构地区：[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

出　　处：《广东化工》2024年第12期11-13,24,共4页Guangdong Chemical Industry

基　　金：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)。

摘　　要：以黑茶渣为原料,ZnCl_(2)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p H、转速和投加量,探究3种活性炭对六价铬废水的吸附效果。The black tea dregs were used as the raw material,and ZnCl_(2) 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 

分 类 号：TQ[化学工程]