ABSTRACT
Water pollution is a global crisis that needs global attention in safeguarding its quality for both domestic and industrial uses. The major precursors of water pollution are caused by climate change and anthropogenic activities together with rapid uncontrollable population growth. Polluted water has been known to contain several pathogenic microorganisms that portend the capacity to cause serious health issues such as cholera, vomiting, typhoid fever, and dysentery. However, there are several methods used in the abatement of impurities that are available in the water that is responsible for a higher level of water contamination. In recent years, the adoption of new technologies such as nanotechnology has opened a gateway for sustainable abatement of impurity available in the water. This might be linked to their high sorption efficiency when compared to conventional techniques. This chapter assessed the different abatement techniques use in the purifications of industrial waste effluents using bio-nano filtration; photocatalysts, nanomembranes, nanometals, and nanoadsorbents. Reports on the beneficial assets and technical obstacles of these nanomaterials are compared with the traditional processes. Their health and environmental impacts were discussed. The commercialization of the novel method, bio-nano filtration in industrial water treatment, was highlighted. Legal contexts and processes of nanotechnology that are utilized for wastewater and water abatements across the globe were highlighted and discussed. The limits on the usage and future promise were discussed in detail.
