Abstract
The ultimate goal of heavy metal contaminated soil remediation is to increase crop yields on the premise of ensuring food production safety. Soil contaminated by heavy metals threatens the quality of agricultural products and human health. Hence, it is necessary to choose appropriate economic and effective remediation techniques to control the deterioration and revive the land quality. Among the methods available, biochar application for adsorption and remediation of heavy metal contaminated soil is emerging to be a sustainable approach. Biochar introduction to the soil provides organic matter and essential macro and micronutrients like C, N, P, K, Ca, Mg, etc., which enhances soil enzyme and microbial activities. Additionally, the plant root environment, soil water retention, and saturated hydraulic conductivity can be improved in the presence of biochar. This chapter is intended to present an overview of the production techniques of biochar, its properties, and characteristics required for effective heavy metal removal and the corresponding process conditions, mechanisms involved in the interaction of biochar with heavy metals, and the benefits as well as bottlenecks of biochar application in soil.
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Moola, A.K. et al. (2022). Production Techniques, Mechanism, and Application of Biochar in Remediating Soil Contaminated with Heavy Metals: A Review. In: Aravind, J., Kamaraj, M., Karthikeyan, S. (eds) Strategies and Tools for Pollutant Mitigation. Springer, Cham. https://doi.org/10.1007/978-3-030-98241-6_4
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