Nanoparticles: A New Paradigm for Wastewater Treatment

This chapter underscores the pivotal role of water in sustaining life while highlighting the escalating global water pollution crisis. It explores the limitations of conventional water treatment methods and introduces nanotechnology, particularly nanoparticles, as a revolutionary approach to wastewater treatment. The classification section categorizes nanoparticles into organic and inorganic types, detailing their applications in water treatment, with a focus on oxides of silver, gold, zinc, copper, iron, and titanium dioxide nanoparticles. This chapter also introduces the concept of “green technology” and emphasizes green synthesis methods for nanoparticles using bacteria and plant extracts. The third section provides specific examples of bacteria-and plant-mediated synthesis, showcasing the versatility of these eco-friendly and cost-effective approaches. In conclusion, this chapter underscores the promising role of nanotechnology in addressing water pollution challenges and highlights the transformative potential of green synthesis methods for producing environmentally friendly nanoparticles, marking a significant step towards efficient and sustainable wastewater treatment solutions.