Sorption of roxarsone onto soils with different physicochemical properties
文献类型：期刊论文
| 作者 | Fu, Qing-Long1,2; He, Jian-Zhou1,2; Blaney, Lee3; Zhou, Dong-Mei1 |
| 刊名 | Chemosphere
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 159页码:103-112 |
| 关键词 | Roxarsone Organoarsenicals Sorption Soil Partitioning Arsenic |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2016.05.081 |
| 通讯作者 | Zhou, dong-mei(dmzhou@issas.ac.cn) |
| 英文摘要 | Elevated roxarsone (rox) concentrations in soils, caused by land application of rox-bearing poultry litter, mandate investigation of rox sorption onto soils. equilibrium and kinetic studies of rox sorption onto five soils were carried out to explore the relationship between sorption parameters and soil properties, and to reveal the effects of coexisting humic acid (ha), p(v), as(v), and as(iii) on rox transport. experimental results indicated that rox sorption reached equilibrium within 24 h, with pseudo-second order rate constants of 5.74-5.26 x 10(2) g/(mg h); film and intra-particle diffusion were the rate-limiting processes. rox sorption to soils involved partitioning and adsorption phenomena; however, their relative contributions varied for different soils. the maximum rox sorption varied with soil type, ranging from 0.59 to 4.12 mg/g. results from correlation analysis and multiple linear regressions revealed that the maximum sorption capacities, partition coefficients, and desorption percentages were correlated with soil properties, especially iron content, total organic carbon, and dissolved organic carbon. rox sorption to soils was affected more by soil ph than the initial ph of rox-containing solutions. carboxylic and amide functional groups were determined to be responsible for rox sorption to soils. rox sorption capacities decreased in the presence of ha, p(v), as(v), and as(iii), indicating that rox mobility in soils was facilitated by dissolved organic matter (dom) and competing anions. (c) 2016 elsevier ltd. all rights reserved. |
| WOS关键词 | POULTRY LITTER ; ORGANOARSENIC COMPOUNDS ; ARSENATE ADSORPTION ; ORGANIC-COMPOUNDS ; AQUEOUS-SOLUTION ; IRON HYDROXIDE ; ARSANILIC ACID ; METAL-IONS ; DESORPTION ; KINETICS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000380417800013 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375097 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou, Dong-Mei |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Maryland Baltimore Cty, Dept Chem Biochem & Environm Engn, 1000 Hilltop Circle, Baltimore, MD 21250 USA |
| 推荐引用方式 GB/T 7714 | Fu, Qing-Long,He, Jian-Zhou,Blaney, Lee,et al. Sorption of roxarsone onto soils with different physicochemical properties[J]. Chemosphere,2016,159:103-112. |
| APA | Fu, Qing-Long,He, Jian-Zhou,Blaney, Lee,&Zhou, Dong-Mei.(2016).Sorption of roxarsone onto soils with different physicochemical properties.Chemosphere,159,103-112. |
| MLA | Fu, Qing-Long,et al."Sorption of roxarsone onto soils with different physicochemical properties".Chemosphere 159(2016):103-112. |
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来源：中国科学院大学
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