Arsenic sorption by red mud-modified biochar produced from rice straw
作者: Chuan WuLiu HuangSheng-Guo XueYu-Ying HuangWilliam HartleyMeng-qian CuiMing-Hung Wong
作者单位: 1Central South University
2Chinese Academy of Sciences
3Harper Adams University
4The Education University of Hong Kong
刊名: Environmental Science and Pollution Research, 2017, Vol.24 (22), pp.18168-18178
来源数据库: Springer Journal
DOI: 10.1007/s11356-017-9466-7
关键词: Red mudBiocharArsenateHematiteMagnetiteGibbsite
英文摘要: Red mud-modified biochar (RM-BC) has been produced to be utilized as a novel adsorbent to remove As because it can effectively combine the beneficial features of red mud (rich metal oxide composition and porous structure) and biochar (large surface area and porous structure properties). SEM-EDS and XRD analyses demonstrated that red mud had loaded successfully on the surface of biochar. With the increasing of pH in solution, arsenate (As(V)) adsorption on RM-BC decreased while arsenite (As(III)) increased. Arsenate adsorption kinetics process on RM-BC fitted the pseudo-second-order model, while that of As(III) favored the Elovich model. All sorption isotherms produced superior fits with the Langmuir model. RM-BC exhibited improved As removal capabilities, with a maximum adsorption...
原始语种摘要: Red mud-modified biochar (RM-BC) has been produced to be utilized as a novel adsorbent to remove As because it can effectively combine the beneficial features of red mud (rich metal oxide composition and porous structure) and biochar (large surface area and porous structure properties). SEM-EDS and XRD analyses demonstrated that red mud had loaded successfully on the surface of biochar. With the increasing of pH in solution, arsenate (As(V)) adsorption on RM-BC decreased while arsenite (As(III)) increased. Arsenate adsorption kinetics process on RM-BC fitted the pseudo-second-order model, while that of As(III) favored the Elovich model. All sorption isotherms produced superior fits with the Langmuir model. RM-BC exhibited improved As removal capabilities, with a maximum adsorption...
全文获取路径: Springer  (合作)
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影响因子:2.618 (2012)

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关键词翻译
关键词翻译
  • sorption 吸着
  • modified 改进
  • adsorbent 吸附剂
  • produced 出品
  • removing 删除
  • removal 消去
  • aluminum 
  • kinetics 动力学
  • waste 岩屑
  • arsenite 砷华