Jul 2026· Advances in Economics, Management and Political Sciences· Vol 288, pp. 70-74· 0 citations
Abstract
Soil contamination by heavy metals poses significant threats to ecosystems and human health. Biochar, a carbon-rich material produced from biomass pyrolysis, has emerged as a promising and cost-effective amendment for immobilizing heavy metals in polluted soils. This paper provides a critical review of the key mechanisms governing the immobilization of heavy metals (e.g., Pb, Cd, Cu, Zn) by biochar, including electrostatic attraction, ion exchange, surface complexation, and precipitation. Furthermore, this study evaluates the primary factors influencing remediation efficiency, such as pyrolysis temperature, feedstock type, and soil conditions. The results synthesized from existing literature indicate that biochar application can effectively reduce metal bioavailability and leachability, while also improving soil physicochemical properties. In summary, understanding the mechanism-property relationship of biochar is essential for optimizing its field application. This review therefore provides a theoretical basis and practical guidance for using biochar in sustainable soil remediation.
Biochar, a carbon-rich material produced by the pyrolysis of organic waste, has emerged as a low cost and sustainable material for several environmental applications including the enhancement of soil fertility and adsorption of heavy metals. This study evaluated and compared the potential of four plant-based biochars...
Aqeela Batool, S. Shehzadi, Dilawar Hussain et al.· Acta Agriculturae Slovenica· 0 citations
Biochar, a carbon-rich product resulting from the thermochemical transformation of organic biomass under limited oxygen condition, is currently drawing much worldwide attention due to its multiple applications in carbon sequestration, soil improvement, environmental remediation, and biomass waste management. Initially,...
Omotayo E. Ojewumi, Gang Chen, M. Ojewumi· Green· 0 citations
Heavy metal water pollution poses severe health risks to humans. Heavy metal contamination from natural and anthropogenic sources poses a serious threat to the environment. Various techniques including adsorption, ion exchange, precipitation, chemical reduction, and ultrafiltration have been employed to remove heavy...
Heavy metal contamination in acidic boreal forest soils is a significant environmental concern due to the enhanced mobility and bioavailability of metals under acidic conditions. Biochar treatments have gained increasing attention as sustainable remediation materials because of their ability to immobilize heavy metals...
Heavy metals, petroleum hydrocarbons, microplastics, and pesticides exhibit mutagenic, carcinogenic, immunotoxic, and teratogenic properties, leading to significant changes in the soil’s physical, chemical, and microbiological characteristics. This poses a substantial threat to overall ecosystem health. Consequently, a...
E. Kravchenko, Zi-Long Li, Tatiana Minkina et al.· Environmental Geotechnics· 0 citations
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