Arsenic Removal from Water by Iron-Modified Bamboo Charcoal
文献类型：期刊论文
| 作者 | Liu, Xi1,2; Ao, Hongyi1; Xiong, Xiong1,2; Xiao, Jinguang3; Liu, Jiantong1 |
| 刊名 | WATER AIR AND SOIL POLLUTION
 |
| 出版日期 | 2012-03-01 |
| 卷号 | 223期号:3页码:1033-1044 |
| 关键词 | Adsorption Arsenate Arsenite Bamboo charcoal Freundlich isotherm |
| ISSN号 | 0049-6979 |
| 通讯作者 | Liu, J.(jtliu@ihb.ac.cn) |
| 中文摘要 | The effectiveness of a novel and low-cost adsorbent, iron-modified bamboo charcoal (BC-Fe), for arsenic removal from aqueous systems was evaluated in this study. The BC-Fe was synthesized by loading iron onto bamboo charcoal via soaking in a ferric salt solution. The BC-Fe possessed a porous structure with a surface area of 277.895 m2/g. The adsorption characteristics of arsenic onto BC-Fe were further investigated at various pHs, contact times, arsenic concentrations, and adsorbent doses in batch tests. The corresponding optimum equilibrium pH ranges for As(III) and As(V) removal were 4-5 and 3-4, respectively. The equilibrium times for As(III) and As(V) adsorption were 30 and 35.5 h, respectively. The arsenic removal was strongly dependent on the initial adsorbate concentration and adsorbent dosage. The maximum arsenic removal capacities of BC-Fe under the experimental conditions were 7.237 and 19.771 mg/g for As(III) and As(V), respectively. The pseudo-second-order kinetic model and Freundlich isotherm explained the kinetic and equilibrium of both the As(III) and As(V) adsorbent processes, respectively. Based on these results, the BC-Fe developed in this study is a promising material for the treatment of arsenic-contaminated water. |
| 英文摘要 | The effectiveness of a novel and low-cost adsorbent, iron-modified bamboo charcoal (BC-Fe), for arsenic removal from aqueous systems was evaluated in this study. The BC-Fe was synthesized by loading iron onto bamboo charcoal via soaking in a ferric salt solution. The BC-Fe possessed a porous structure with a surface area of 277.895 m(2)/g. The adsorption characteristics of arsenic onto BC-Fe were further investigated at various pHs, contact times, arsenic concentrations, and adsorbent doses in batch tests. The corresponding optimum equilibrium pH ranges for As(III) and As(V) removal were 4-5 and 3-4, respectively. The equilibrium times for As(III) and As(V) adsorption were 30 and 35.5 h, respectively. The arsenic removal was strongly dependent on the initial adsorbate concentration and adsorbent dosage. The maximum arsenic removal capacities of BC-Fe under the experimental conditions were 7.237 and 19.771 mg/g for As(III) and As(V), respectively. The pseudo-second-order kinetic model and Freundlich isotherm explained the kinetic and equilibrium of both the As(III) and As(V) adsorbent processes, respectively. Based on these results, the BC-Fe developed in this study is a promising material for the treatment of arsenic-contaminated water. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Meteorology & Atmospheric Sciences ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 关键词[WOS] | GRANULAR FERRIC HYDROXIDE ; ACTIVATED CARBON ; AGRICULTURAL WASTE ; AQUEOUS-SOLUTIONS ; DRINKING-WATER ; GROUND-WATER ; ADSORPTION ; ADSORBENTS ; TEMPERATURE ; KINETICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000303385500007 |
| 公开日期 | 2012-03-20 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/16680]  |
| 专题 | 水生生物研究所_水环境工程研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Huazhong Univ Sci & Technol, Natl Lab Coal Combust, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xi,Ao, Hongyi,Xiong, Xiong,et al. Arsenic Removal from Water by Iron-Modified Bamboo Charcoal[J]. WATER AIR AND SOIL POLLUTION,2012,223(3):1033-1044. |
| APA | Liu, Xi,Ao, Hongyi,Xiong, Xiong,Xiao, Jinguang,&Liu, Jiantong.(2012).Arsenic Removal from Water by Iron-Modified Bamboo Charcoal.WATER AIR AND SOIL POLLUTION,223(3),1033-1044. |
| MLA | Liu, Xi,et al."Arsenic Removal from Water by Iron-Modified Bamboo Charcoal".WATER AIR AND SOIL POLLUTION 223.3(2012):1033-1044. |
入库方式： OAI收割
来源：水生生物研究所
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