A comprehensive review on biochar-based materials for the safe utilization and remediation of heavy metal-contaminated agricultural soil and associated mechanisms

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering Pub Date : 2025-03-16 DOI:10.1016/j.jece.2025.116179

Limiao Ye , Guangkuo Gao , Fayun Li , Yafei Sun , Shiyan Yang , Qin Qin , Jun Wang , Naling Bai , Yong Xue , Lijuan Sun

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引用次数: 0

Abstract

Heavy metal pollution of soil poses a serious threat to the agricultural industry. As a carbon-rich material with high adsorption sites, biochar has received much in the safety use or remediation of heavy metal contaminated agricultural soil. This paper provided a comprehensive overview on the application of biochar in agricultural soil remediation and its related mechanisms. Firstly, the production and modification methods of biochar were introduced. Secondly, the physical and chemical mechanism of heavy metal adsorption by biochar was comprehensively discussed. Thirdly, the heavy metal passivation principles by biochar and factors influencing the passivation efficiency were summarized, including soil pH, environmental temperature, humidity, soil redox potential. Finally, the potential risk of contaminates leaching during the long term application of biochar and future challenges for the wide use of biochar was proposed. This review offers comprehensive and valuable insights for the green and economy agricultural soil remediation technology based on biochar materials and promotes its widely application.

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来源期刊

Journal of Environmental Chemical Engineering Environmental Science-Pollution

CiteScore

11.40

自引率

6.50%

发文量

2017

审稿时长

27 days

期刊介绍： The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.