A Comprehensive Review on the Production and Application of Sludge Biochar for Water and Soil Remediation

Abstract

Biochar has a lot of potential as a wastewater treatment and soil remediation agent. This review highlights recent studies on the development and applications of sludge biochar. The disposal and reutilization of sludge wastes, which is necessary in wastewater treatment operations, is both environmentally benign and cost-effective. Thermochemical treatment of activated sludge to produce biochar is a potential waste management solution. The structure, chemistry, and catalytic capabilities of the resultant biochar are all influenced by the thermochemical process used to produce sludge. In addition, sludge biochar uses for water and soil remediation are highlighted. Based on the findings, it can be inferred that sewage sludge biochar technology is a novel, cost-effective, and environmentally acceptable method for pollution remediation.