Enhanced passivation of thallium, vanadium and arsenic in contaminated soils: critical role of Fe-Mn-biochar
文献类型：期刊论文
| 作者 | Deng, Pengyuan1; Yuan, Wenhuan1; Wang, Jin1; Li, Liangzhong2; Zhou, Yuchen1; Beiyuan, Jingzi3; Xu, Haofan3; Jiang, Shunlong1; Tan, Zicong1; Gao, Yurong1,3 |
| 刊名 | BIOCHAR
 |
| 出版日期 | 2024-06-20 |
| 卷号 | 6期号:1页码:13 |
| 关键词 | Modified biochar Toxic metal Environmental risk Soil amendment |
| ISSN号 | 2524-7972 |
| DOI | 10.1007/s42773-024-00344-z |
| 通讯作者 | Liu, Juan(liujuan858585@163.com) |
| 英文摘要 | Thallium (Tl), vanadium (V) and arsenic (As) are considered as typical toxic elements of increased interest. Their accumulation in soils can pose a substantial health threat to human beings. In this study, Fe-Mn modified biochar (FMBC) was chemically constructed to immobilize Tl, V and As in contaminated soils. The results showed that compared with pristine biochar (BC), FMBC can achieve significantly higher passivation effects for the studied contaminated soils, which reduced the bioavailable Tl, V and As contents by 83.9%, 71.09% and 71.92%, respectively. The passivation of Tl, As, and V via FMBC application was partially attributed to a notable increase in pH, which enhances the availability of adsorptive sites. Further, the newly formed minerals, including cancrinite, gibbsite and Fe-Mn (hydr)oxides, serve as additional adsorbents, substantially reducing the mobility of Tl, V and As. Additionally, the oxidation of Tl(I) to Tl(III) by the Fe-Mn (hydr)oxide of FMBC significantly enhanced Tl immobilization, consequently diminishing its bioavailability. The findings suggest that significant environmental threats could be alleviated through the potential application of FMBC in treating Tl-As-V dominated contamination in soils, providing a new perspective for the sustainable utilization of industrially polluted soils. FMBC effectively reduced the bioavailability of Tl, As and V in contaminated soils. Formation of new minerals during passivation can enhance adsorption of the studied elements. Effective immobilization of Tl may be mainly ascribed to oxidation of Tl(I) to Tl(III) by FMBC. |
| WOS关键词 | POLLUTION ; SORPTION ; REMOVAL |
| 资助项目 | Natural Science Foundation of China[42173007] ; Guangdong Provincial Natural Science Foundation for Distinguished Young Scholars[2021B1515020078] ; Guangzhou Science and Technology Program[2024A03J0458] ; Guangdong Basic and Applied Basic Research Foundation[2023A1515012381] ; Earth Critical Zone[PT252022024] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001250358400001 |
| 出版者 | SPRINGER SINGAPORE PTE LTD |
| 资助机构 | Natural Science Foundation of China ; Guangdong Provincial Natural Science Foundation for Distinguished Young Scholars ; Guangzhou Science and Technology Program ; Guangdong Basic and Applied Basic Research Foundation ; Earth Critical Zone |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42159]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Liu, Juan |
| 作者单位 | 1.Guangzhou Univ, Sch Environm Sci & Engn, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Pengyuan,Yuan, Wenhuan,Wang, Jin,et al. Enhanced passivation of thallium, vanadium and arsenic in contaminated soils: critical role of Fe-Mn-biochar[J]. BIOCHAR,2024,6(1):13. |
| APA | Deng, Pengyuan.,Yuan, Wenhuan.,Wang, Jin.,Li, Liangzhong.,Zhou, Yuchen.,...&Liu, Juan.(2024).Enhanced passivation of thallium, vanadium and arsenic in contaminated soils: critical role of Fe-Mn-biochar.BIOCHAR,6(1),13. |
| MLA | Deng, Pengyuan,et al."Enhanced passivation of thallium, vanadium and arsenic in contaminated soils: critical role of Fe-Mn-biochar".BIOCHAR 6.1(2024):13. |
入库方式： OAI收割
来源：广州能源研究所
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