Aging and cadmium immobilization mechanisms of non-metallic materials typically applied in complex water-sediment systems
文献类型：期刊论文
| 作者 | Yang, Ziqiang2; Yang, Daizong2; Wang, Liang1; Wang, Jia2; Qin, Yuxin2; Zhang, Liping3; Jiang, Xia2; Niu, Yong2; Luo, Mingke2 |
| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
 |
| 出版日期 | 2026-01-15 |
| 卷号 | 206页码:108252 |
| 关键词 | Cadmium Phosphorus Sediment Non-metallic absorbent Ageing mechanism Heavy metal passivation |
| ISSN号 | 0957-5820 |
| DOI | 10.1016/j.psep.2025.108252 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Cadmium (Cd) is a major heavy metal contaminant in sediments in China; however, the aging and Cd immobilization mechanisms of non-metallic adsorbents in complex water-sediment systems remain unclear. Herein, the remediation effectiveness of biochar (BC), activated carbon (AC), and kaolinite (KL) on Cd-contaminated sediments was investigated, analyzing their effects on physicochemical factors, nutrients, Cd concentration, Cd speciation, and Cd toxicity. BC had the most significant impact on system pH and oxidation-reduction potential (ORP) during the initial 15 days, whereas AC exhibited the strongest ORP enhancement after 60 days. All three materials effectively mitigated the release of total organic carbon, total nitrogen, and total phosphorus. Cd release into overlying water was most inhibited by AC, followed by BC and KL. BC promoted Cd2 + deposition in the form of Cd3(PO4)2 on BC surfaces, significantly increasing the proportion of stable Cd. The surface functional groups of all materials degraded in the water-sediment systems. AC and KL aged after 60 days, whereas BC began aging around 30 days, owing to the preferential oxidative degradation of its organic macromolecular structures. This study provides technical support for sediment remediation and establishes an evidence-based foundation for low-cost material applications in pollution control engineering. |
| URL标识 | 查看原文 |
| WOS关键词 | BIOCHAR |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001635150500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219671]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Luo, Mingke |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Key Lab Lake Pollut Control, Minist Ecol & Environm, Beijing 100012, Peoples R China; 3.Tsinghua Univ, Sch Environm, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Ziqiang,Yang, Daizong,Wang, Liang,et al. Aging and cadmium immobilization mechanisms of non-metallic materials typically applied in complex water-sediment systems[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2026,206:108252. |
| APA | Yang, Ziqiang.,Yang, Daizong.,Wang, Liang.,Wang, Jia.,Qin, Yuxin.,...&Luo, Mingke.(2026).Aging and cadmium immobilization mechanisms of non-metallic materials typically applied in complex water-sediment systems.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,206,108252. |
| MLA | Yang, Ziqiang,et al."Aging and cadmium immobilization mechanisms of non-metallic materials typically applied in complex water-sediment systems".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 206(2026):108252. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。