Author(s): Varsha Yadav¹, Dr. Jitendra Kumar²

Abstract: In today's context of diminishing water resources, effective wastewater treatment has become essential for economic growth. The development and implementation of advanced technologies that offer high efficiency and low capital costs are crucial. Recent advancements in nano-material sciences have garnered significant attention from researchers as a promising solution. However, the body of knowledge in this area remains limited. This manuscript reviews the emerging potential of nanotechnology in the realm of wastewater treatment, discussing the application of various categories of nano-materials in these processes. The review identifies four primary classes of nano-materials used in wastewater treatment. The first category includes nano-adsorbents such as activated carbon, carbon nanotubes, graphene, manganese oxide, zinc oxide, titanium oxide, magnesium oxide, and ferric oxides, which are primarily utilized to extract heavy metals from wastewater. The second class comprises nano-catalysts, including photocatalysts, electrocatalysts, Fenton-based catalysts, and chemical oxidants, all of which demonstrate the ability to eliminate both organic and inorganic pollutants. The third category involves nano-membranes designed for the efficient removal of dyes, heavy metals, and other foulants, utilizing carbon nanotube membranes, electrospun nanofibers, and hybrid nano-membranes. Lastly, the manuscript covers the integration of nanotechnology with biological processes such as algal membrane bioreactors, anaerobic digestion, and microbial fuel cells, highlighting their potential in enhancing wastewater purification.

Keywords: Nano-adsorbents, Nano-catalysts, Nano-membranes.

DOI:10.61165/sk.publisher.v11i6.2

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Nanotechnology in waste water treatment: A review

Pages:5-14