Simultaneous removal of arsenic and antimony from mining wastewater using granular TiO2: Batch and field column studies
文献类型：期刊论文
| 作者 | Qiu, Shixin; Yan, Li; Jing, Chuanyong |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2019 |
| 卷号 | 75页码:269-276 |
| 关键词 | Coexisting As and Sb Surface complexation Breakthrough curves One-dimensional transport |
| ISSN号 | 1001-0742 |
| 英文摘要 | Coexisting arsenic (As) and antimony (Sb) in mining wastewater is a common and great concern. On-site simultaneous removal of As and Sb from mining wastewater was achieved by using a reusable granular TiO2 column in this study. To evaluate the accuracy of the scale-up procedure, As and Sb adsorption from wastewater was studied in both large (600 g TiO2) and small columns (12 g TiO2) based on the proportional diffusivity rapid small-scale column tests (PD-RSSCTs) design. The comparable As and Sb breakthrough curves obtained from small and large columns confirmed the accuracy of the PD-RSSCT theory in the design of large-scale columns. Meanwhile, the consistent As and Sb adsorption results from batch and column experiments suggested that TiO2 adsorption for As and Sb can be predicted from bench-scale tests. Charge distribution multi-site complexation (CD-MUSIC) and one-dimensional transport modeling integrated in the PHREEQC program were performed to study the adsorption behaviors of As and Sb on the TiO2 surface. Coexisting ions, such as Ca2+, Mg2+, and Si4+, play an important role in As and Sb adsorption, and the breakthrough curves were well simulated after considering the compound ion effects. The results from this study highlight the surface reactions of As and Sb on TiO2 and provide a practical way for on-site remediation of industrial wastewater. (c) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/43015]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Shixin,Yan, Li,Jing, Chuanyong. Simultaneous removal of arsenic and antimony from mining wastewater using granular TiO2: Batch and field column studies[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,75:269-276. |
| APA | Qiu, Shixin,Yan, Li,&Jing, Chuanyong.(2019).Simultaneous removal of arsenic and antimony from mining wastewater using granular TiO2: Batch and field column studies.JOURNAL OF ENVIRONMENTAL SCIENCES,75,269-276. |
| MLA | Qiu, Shixin,et al."Simultaneous removal of arsenic and antimony from mining wastewater using granular TiO2: Batch and field column studies".JOURNAL OF ENVIRONMENTAL SCIENCES 75(2019):269-276. |
入库方式： OAI收割
来源：生态环境研究中心
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