岩矿测试2025，Vol.44Issue(1)：35-50,16.DOI:10.15898/j.ykcs.202401180007
土壤中铬价态转化的影响因素与作用机制研究进展
Research Progress on Influencing Factors and Mechanisms of Chromium Valence State Transformation in Soil
摘要
Abstract
Chromium(Cr)pollution in soil is a global environmental problem,and hexavalent chromium[Cr(Ⅵ)]has become a focus of attention due to its high toxicity and carcinogenicity.Cr in soil mainly exists in the form of Cr(Ⅲ)and Cr(Ⅵ),and the transformation between the two is influenced by factors such as soil pH,redox potential(Eh),natural redox agents,organic matter,and microorganisms.This article provides an overview of the global pollution status and sources of Cr in soil,as well as the different valence states and toxicity characteristics of Cr in soil.It also analyzes the redox mechanisms of chromium valence state transformation in soil affected by different factors,as well as the interactions between different factors.In addition,through a deep understanding of the factors affecting the valence state of Cr,advanced remediation techniques represented by biochar and nanomaterials have emerged.These methods can effectively reduce Cr(Ⅵ)to less toxic Cr(Ⅲ),thereby reducing ecological and environmental risks.Therefore,they are a potentially valuable remediation material and technique.However,the feasibility and effectiveness of large-scale applications still need further verification.The BRIEF REPORT is available for this paper at http://www.ykcs.ac.cn/en/article/doi/10.15898/j.ykcs.202401180007.关键词
Cr污染/Cr价态/天然氧化还原剂/有机质/修复技术Key words
chromium pollution/chromium valence state/natural redox agent/organic matter/remediation technology分类
化学引用本文复制引用
陈俊茹,沈亚婷,刘菲..土壤中铬价态转化的影响因素与作用机制研究进展[J].岩矿测试,2025,44(1):35-50,16.基金项目
国家重点研发计划项目(2022YFC3700803) （2022YFC3700803）
国家自然科学基金面上项目(41877505) （41877505）
