<p>Antibiotics are an emerging class of contaminants that have raised concern of resistance development in pathogens when exposed to sublethal concentrations of these antibiotics. There are fears that treatment of disease-causing pathogens will be a great challenge in the future. Therefore, it is important to develop low-cost methods to remove antibiotics from water/waste water. Adsorbent based methods have gained particular attention because adsorption is highly efficient in the removal of low-concentrations of these chemicals. Biochars, a byproduct of pyrolysis of plant biomass or carbon rich animal waste have shown considerable promise for antibiotic removal. Properties of biochars are governed mainly by the nature of feed stock, pyrolysis temperature and rate of pyrolysis as they govern properties of biochar like surface area, porosity, pore structure, functional groups, degree of carbonization etc. Modified or engineered biochars have addressed the issue of poor antibiotics removal potential of pristine biochars. Main objective of modification is to improve adsorption capacity of inorganic ash content, ease in handling and adsorbent separation. Pyrolysis of waste organic waste to meet the energy needs and utilization of byproduct, biochar for contaminants removal, could be a great initiative to address their meaningful utilization as sustainable adsorbent for contaminants removal.</p>