不同作物原料热裂解生物质炭对溶液中Cd2+和Pb2+的吸附特性OA北大核心CSCDCSTPCD
Adsorption of Cd2+ and Pb2+ in aqueous solution by biochars produced from the pyrolysis of different crop feedstock
选择由小麦秸秆、玉米秸秆和花生壳经350～500℃热裂解制成的生物质炭,研究生物黑炭对水溶液中Cd2+和Pb2+的吸附特性,分析了pH值、吸附时间、溶液初始质量浓度、生物质炭粒径和投加量对吸附效果的影响.结果表明:生物质炭对Cd+和Pb2+的吸附约10min即达平衡；3种生物质炭对Cd+和Pb2+的等温吸附均可用Langmuir方程和Freundlich方程拟合,玉米秸秆炭对Cd+和Pb2+的最大吸附量远大于小麦秸秆炭和花生壳炭；在生物黑炭…查看全部>>
Biochars were produced from the pyrolysis of wheat, corn straw and peanut husk respectively, at 350-500 . The adsorpents of Cd2+ and Pb2+ in aqueous solution by three biochars were investigated. The effect of pH, contract time, initial solution concention, adsorbent particlesize and adsorbent dose on the adsorption of Cd2+ and Pb2+ on biochars were also estimated. The results indicated that adsorption equilibrium of Cd2+ and Pb2+on biochars almost reached in…查看全部>>
刘莹莹;秦海芝;李恋卿;潘根兴;张旭辉;郑金伟;韩晓君;俞欣研
南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095南京农业大学农业资源与生态环境研究所,江苏南京210095
资源环境
生物质炭Cd2+Pb2+吸附作物原料
biochar Cd2+ Pb2+ adsorption crop feedstock
《生态环境学报》 2012 (1)
146-152,7
农业部农业生态环境保护项目(2110402-1173)
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