不锈钢渣中铬在土壤圈中的迁移转化机理

IF 1.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI:10.1515/htmp-2022-0252

Shuang Cai, Liguang Wang, Yuzhu Zhang, Tao Li, Tie Tian, Tianji Liu

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引用次数: 1

摘要

摘要从不锈钢渣中浸出的三价铬（Cr）在自然储存过程中可被氧化成毒性很强的六价铬，对周围的土壤、水和大气造成严重污染。目前，高铬浓度对植物、动物和人类的毒性危害已引起世界各地的广泛关注。本研究综述了自然填埋条件下不锈钢渣土壤中Cr的存在方式、浸出机理和影响因素。同时，对铬在土壤-植物系统中吸收、迁移和积累的研究进展进行了总结。此外，考虑到铬在土壤中的毒性和有害影响，以及生物和化学方法在铬污染土壤修复中的应用，综述了从不锈钢渣中回收铬的方法，以及化学修复和生物方法在含铬土壤中的应用。最后，讨论了Cr在土壤-植物系统中的转移转化行为、土壤修复技术的实际应用以及该领域的研究前景。

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Transfer and transformation mechanism of chromium in stainless steel slag in pedosphere

Abstract The trivalent chromium (Cr) leached from stainless steel slag can be oxidized into hexavalent Cr with strong toxicity in the natural storage process, thus causing severe pollution to the surrounding soil, water, and atmosphere. Currently, the toxicity hazards caused by high Cr concentrations in plants, animals, and humans have attracted widespread attention from across the world. In this study, an overview is presented regarding the occurrence mode, leaching mechanism, and influencing factors for the presence of Cr in the soil of stainless steel slag under natural landfilling conditions. Meanwhile, a summary is made for the research progress in Cr absorption, transport, and accumulation in the soil–plant system. Besides, allowing for the toxicity and detrimental effect of Cr(vi) in the soil as well as the application of biological and chemical methods for the remediation of Cr(vi)-contaminated soil, a review is conducted on the approach to recycling Cr from stainless steel slag and the application of chemical remediation and biological methods to remedy Cr-containing soil. Finally, a discussion is conducted about the transfer and transformation behavior of Cr in soil–plant system, the practical application of soil remediation technology and the prospect of research in this field.

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来源期刊

High Temperature Materials and Processes 工程技术-材料科学：综合

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

3.9 months

期刊介绍： High Temperature Materials and Processes offers an international publication forum for new ideas, insights and results related to high-temperature materials and processes in science and technology. The journal publishes original research papers and short communications addressing topics at the forefront of high-temperature materials research including processing of various materials at high temperatures. Occasionally, reviews of a specific topic are included. The journal also publishes special issues featuring ongoing research programs as well as symposia of high-temperature materials and processes, and other related research activities. Emphasis is placed on the multi-disciplinary nature of high-temperature materials and processes for various materials in a variety of states. Such a nature of the journal will help readers who wish to become acquainted with related subjects by obtaining information of various aspects of high-temperature materials research. The increasing spread of information on these subjects will also help to shed light on relevant topics of high-temperature materials and processes outside of readers’ own core specialties.