灌溉排水学报2017，Vol.36Issue(2)：12-19,8.DOI:10.13522/j.cnki.ggps.2017.02.002
小麦秸秆和小麦秸秆生物质炭对低质量浓度Cd2+的吸附特性研究
Absorption ofCd2+at Low Concentration by Wheat Straw and Wheat Straw Derived-biochar
摘要
Abstract
Wheat straw and wheat straw derived-biochar were taken as the research object.Adsorption property and its influential factors of Cd2+at low concentration to the wheat straw and wheat straw derived-biochar in aque-ous solution were investigated.The results indicated that adsorption isotherm fit well with Langmiur equation,ad-sorption equilibrium of Cd2+on wheat straw and wheat straw derived-biochar almost reached in 10 minutes.Under the experimental condition,the removal rate of Cd2+on biochar was over 90%,which was 70%on wheat straw. There was significant effect of pH values on adsorption of Cd2+by the biochar and wheat straw,temperature had effects on adsorption of Cd2+by wheat straw,but there was no significant effect of temperature on adsorption of Cd2+by the biochar.When 0.5 g/L wheat straw or biochar were used,there was no effect of different dosing quan-tity on adsorption of Cd2+by wheat straw and its derived-biochar.关键词
小麦秸秆/生物质炭/吸附/Cd2+Key words
wheat straw/absorption/biochar/Cd2+分类
资源环境引用本文复制引用
高青,齐学斌,赵志娟,李中阳,樊涛..小麦秸秆和小麦秸秆生物质炭对低质量浓度Cd2+的吸附特性研究[J].灌溉排水学报,2017,36(2):12-19,8.基金项目
公益性行业(农业)科研专项经费资助项目(201203077) （农业）
国家863计划项目(2012AA101404) （2012AA101404）
中央级公益性科研院所基本科研业务费专项(0032015035) （0032015035）
