Divyanshu Sikarwar, Neha Sharma and Sovik Das
The Availability of fresh water is very limited and it is further getting contaminated due to anthropogenic activities. As a result, the treatment of contaminated water or wastewater has gained considerable attention in the recent past so that the water bodies can be prevented from contamination arising due to the discharge of wastewater into them. However, in the longer run, the treatment of wastewater just to meet the discharge standards is not sufficient to solve the issue of water scarcity. Therefore, it is very important to socially and scientifically encourage the idea of wastewater reuse, where it can be used as the feedstock for resource recovery like the production of bioelectricity, biofuels, biofertilizers, bioplastic, commodity chemicals and many more. Recovering energy as biofuels or other valuable products from wastewater will reduce the dependence on renewable sources, minimize the direct and indirect carbon dioxide emissions to the environment, and thus will assist in the attainment of Sustainable Development Goals set by the United Nations.