Institutional Repository of Coll Civil Engn
| Roles of Mg-Al layered double hydroxides and solution chemistry on P transport in soil | |
Jiang, Xiaoqian1,2; Zhang, Miaoyue3,4; Yan, Binggang5; Hu, Jiawei5 ; Chen, Jiayu1,2,6; Guan, Yuntao1,2,6
| |
| 2019-10 | |
| 发表期刊 | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| 卷号 | 373页码:1111-1119 |
| 摘要 | Mg-Al layered double hydroxides (LDHs) were synthesized and applied to soils to control phosphorus (P) loss. Saturated soil column experiments and numerical modeling were conducted to investigate the transport, retention, and release behavior of P in natural soil with and without mixing LDHs under various solution chemistries. Retention of P in the soil increased with the addition of 0.5% LDHs and in the presence of Ca2+ in comparison to K+. The simulated results showed that irreversible retention of P is greater in the presence of Ca2+ than K+ in soil without LDHs and in the presence of 0.5% LDHs in comparison to the absence. The increase of ionic strength (IS) for K+ from 1 to 100mM resulted in increased P retention in LDH-soil system due to more inner-sphere complexes and increased adhesive force. Near equilibrium retention on the reversible site occurred for all these experiments. The P was desorbed and the transport of dissolved P was improved with the reduction of IS in the presence of K+. On the other side, larger ion exchange and reduction of IS in the presence of Ca2+ induced the release of Fe/Al oxides which brought transport of P absorbed on those minerals, suggesting the potential for Fe/Al oxides-facilitated transport of P under the change of soil solution chemistry. Additionally, the transport and stability of LDHs in soil column were also investigated. The dissolution and transport of LDHs could be impeded in presence of high cation valence and IS. |
| 关键词 | Phosphorus Soil Layered double hydroxides Cation exchange Breakthrough curves Retention profiles |
| DOI | 10.1016/j.cej.2019.05.083 |
| 收录类别 | SCI ; SCIE |
| 语种 | 英语 |
| 资助项目 | Shenzhen Science and Innovation Commission[JSGG20170412145935322] |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Environmental ; Engineering, Chemical |
| WOS记录号 | WOS:000471682900105 |
| 出版者 | ELSEVIER SCIENCE SA |
| EI入藏号 | 20192206977072 |
| EI主题词 | Magnesium compounds |
| EI分类号 | 483.1 Soils and Soil Mechanics - 541.2 Aluminum Alloys - 542.2 Magnesium and Alloys - 801.4 Physical Chemistry - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/31552 |
| 专题 | 土木工程学院 |
| 通讯作者 | Guan, Yuntao |
| 作者单位 | 1.Tsinghua Univ, Grad Sch Shenzhen, Beijing, Peoples R China; 2.Tsinghua Univ, Guangdong Prov Engn Technol Res Ctr Urban Water C, Grad Sch Shenzhen, Beijing, Peoples R China; 3.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China; 4.Sun Yat Sen Univ, Guangdong Prov Key Lab Environm Pollut Control &, Guangzhou, Guangdong, Peoples R China; 5.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Gansu, Peoples R China; 6.Tsinghua Univ, Sch Environm, State Environm Protect Key Lab Microorganism Appl, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Xiaoqian,Zhang, Miaoyue,Yan, Binggang,et al. Roles of Mg-Al layered double hydroxides and solution chemistry on P transport in soil[J]. CHEMICAL ENGINEERING JOURNAL,2019,373:1111-1119. |
| APA | Jiang, Xiaoqian,Zhang, Miaoyue,Yan, Binggang,Hu, Jiawei,Chen, Jiayu,&Guan, Yuntao.(2019).Roles of Mg-Al layered double hydroxides and solution chemistry on P transport in soil.CHEMICAL ENGINEERING JOURNAL,373,1111-1119. |
| MLA | Jiang, Xiaoqian,et al."Roles of Mg-Al layered double hydroxides and solution chemistry on P transport in soil".CHEMICAL ENGINEERING JOURNAL 373(2019):1111-1119. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Jiang-2019-Roles of （2158KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论