Designed Biochar for Heavy Metals Removal from Wastewater

The significant health risks presented by the rising levels of heavy metals and other contaminants in wastewater are driving an increase in research on water treatment for heavy metal removal. Extensive research has been carried out for effective and economical techniques for wastewater treatment. Current research on designed biochar explores fruitful and novel inventions in many different sectors. Due to its high carbon content, low cost, and low inorganic material concentration, biochar is frequently used in water treatment operations. It also has good adsorption capabilities. This book chapter focuses on the production of biochar from diverse agricultural wastes and the modification of biochar to increase its porosity, surface area, and functional groups, hence boosting the development of active sites for the removal of heavy metals. This chapter will also discuss several studies on biochar's effectiveness as adsorbents for removing various heavy metals, in which utilizing biochar from abundantly available wastes can help in resolving issues such as solid waste disposal to the environment.