Abstract
The remediation of heavy metals (HMs) in soil is always an important topic, as environmental contamination by HMs is of serious concern. Numerous potential advantages, especially integrated with biochar produced from various biomass, might provide an ecologically beneficial tool for achieving the UN’s sustainable development objectives for greener soil remediation. The aim of this study was to address how the soil-science professions may best successfully utilize biochar for greener remediation of HMs-contaminated soils. In this context, the biochar preparation method from different agricultural feedstock, and its use as a soil amendment for remediation of HMs-contaminated soil, were discussed. Furthermore, biochar-based nanocomposites containing functional materials have lately attracted much interest because of the unique properties emerging from their nanoscale size compartment, and present good promise in terms of reactivity and stability. The utility and potency of biochar-based nanocomposites, on the other hand, are determined by their ability to adapt to particular site circumstances and soil qualities. This overview summarized the current advances in the application for the remediation of HMs-polluted soils. Future views on the usage and possibilities for deploying biochar-based nanocomposites in polluted soils were discussed.
Highlights
Soils provide for fundamental human requirements such as food, clean water, and clean air, and act as a primary carrier of biodiversity
Hightemperature biochar showed a higher affinity towards Cd(II)
The findings showed that adding biochar samples to the soil (20 g/kg) significantly decreased the level of Heavy metals (HMs) such as Cd, Cr(VI), Hg, and Pb in the soil
Summary
Soils provide for fundamental human requirements such as food, clean water, and clean air, and act as a primary carrier of biodiversity. Increasing anthropogenic impact on the natural environment has resulted in major global problems at the nexus of planetary and public health [2]. Heavy metals (HMs) pollution is a critical global environmental problem [3]. Heavy metals/metalloids have polluted five million locations throughout the globe, with current amounts above legal thresholds [4]. Heavy metals are present naturally in soils, but elevated levels may be derived from mining, industrial production, the usage of metal-containing chemicals, and anthropogenic activities [6]. In this context, the quantities of the HMs were reported to be
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
