牛粪生物炭对废水中Cu(Ⅱ)的吸附效果及机理研究  

Adsorption of Cu(Ⅱ) in Wastewater by Cow Dung Biochar and Study on Its Effect and Mechanism

作　　者：韩明梅[1] 庄晓娟[1] 吕卫华[1] HAN Ming-mei;ZHUANG Xiao-juan;LV Wei-hua(College of Chemistry and Environment Science,Inner Mongolia Normal University,Inner Mongolia Huhehot 010022,China)

机构地区：[1]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022

出　　处：《广州化工》2022年第19期86-89,共4页GuangZhou Chemical Industry

基　　金：内蒙古师范大学生态文明建设专项(No:2019STWM003)。

摘　　要：为了有效去除废水中Cu^(2+),以牛粪为原料,制取生物炭,采用等温吸附法及动力学吸附法研究生物炭对废水中的Cu^(2+)的吸附效果,并通过XRD、FTIR、BET与元素分析等进行表征。结果表明:热解温度、时间、pH是影响生物炭产率及吸附量的因素。700℃制备的牛粪生物炭(CDB700[2h])对废水中的Cu^(2+)吸附量是最高,达到了0.623 mg·g^(-1),去除率达到了99.7%。说明,CDB700[2h]具有作为废水中Cu^(2+)吸附材质的潜力,本研究为生物炭去除废水中重金属污染的修复提供了理论依据与应用参考。In order to effectively remove Cu^(2+) from wastewater,biochar was prepared from cow dung.The adsorption effect of biochar on Cu^(2+) in wastewater was studied by isothermal adsorption method and kinetic adsorption method,cow dung biochar were studied by XRD,FTIR,BET and elemental analysis.The results showed that pyrolysis temperature,time and pH were the factors affecting the yield and adsorption capacity of biochar.The adsorption capacity of Cu^(2+) in wastewater by cow dung biochar(CDB700[2h])prepared at 700℃was the highest,reaching 0.623 mg·g^(-1),and the removal rate was 99.7%.Therefore,CDB700[2h]has the potential to be used as Cu^(2+) adsorption material in wastewater.The theoretical basis and application reference were provided for the remediation of heavy metal pollution in wastewater by biochar.

关 键 词：牛粪生物炭 Cu^(2+) 吸附效果 机理研究 

分 类 号：O614.12[理学—无机化学]