北华大学学报（自然科学版）2018，Vol.19Issue(4)：536-539,4.DOI:10.11713/j.issn.1009-4822.2018.04.027
玉米秸秆生物炭对重金属镉、铅的吸附性能
Adsorption of Heavy Metal Cd,Pb by Maize Straw Biochar
摘要
Abstract
Preparation of biochar using maize straw and adsorption of heavy metal Cd2+,Pb2+ as adsorbents,the adsorption capacity and adsorption efficiency of heavy metals adsorbed on biochar were analyzed and evaluated. The pH of Cd2+ optimal adsorption conditions was 5,adsorption equilibrium time was 120 min and pH of Pb2+ optimal adsorption conditions was 1,adsorption equilibrium time was 60 min. Biochar has an excellent effect on adsorption of Cd2+, Pb2+ in aquaculture wastewater. The degradation rate of adsorption was 85% , 98% respectively. The adsorption effect of Pb2+ is obviously better than that of Cd2+. The adsorption processes of Cd2+, Pb2+ on the surface of straw biochar is fit to the Freundlich adsorption model.关键词
玉米秸秆/生物炭/重金属/吸附Key words
maize straw/biochar/heavy metal/adsorption分类
资源环境引用本文复制引用
邹继颖,孙大志,赵家伟,王书成,李健炜,李文悦,吕逸寒,窦赫扬..玉米秸秆生物炭对重金属镉、铅的吸附性能[J].北华大学学报（自然科学版）,2018,19(4):536-539,4.基金项目
国家科技重大专项(2014ZX07201-011) （2014ZX07201-011）
吉林化工学院重大科学技术研究项目(2016029) （2016029）
吉林市科技创新发展计划项目(201750257). （201750257）
