Abstract
Biochar, a by-product of pyrolysis can have extensive application prospects in the removal of different pollutants from wastewater. A wide variety of research has highlighted its ability to adsorb nutrients, heavy metal, organic pollutants, and complex mixtures from environmental matrices. Besides, BCs are cost-effective approaches for treatment of various types of wastewater such as stormwater, agricultural runoffs, and industrial wastewater; waste management cycle, filtering suspended solids, soil remediation, and gas storage enhance microbial growth and improve the efficiency of activated sludge treatment and anaerobic sludge treatment. Compared to pristine BCs, engineered systems promise additional surface area, pore size, and abundant oxygen-rich functional groups. BCs are highly efficient as support-based catalysts for degradation of dyes and recalcitrant compounds. Recently, biochar amendments with nanomaterials are on focus to enhance the uptake capacity of various pollutants. This chapter emphasizes the promising prospects of cost-effective, environmentally friendly, sustainable application of biochar in wastewater treatment.
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