Every animate life form depends on water in some way. Without water, a wide range of issues might arise, which could lead to the extinction of human life. To clean water used in industry and to safeguard water sources, many methods should be put into practise. A cost-effective and practical solution to the water shortage is wastewater treatment. Water treatment systems that employ physical, chemical, biological, or a combination of these provide several opportunities for reuse. However, these systems may achieve far higher quality wastewater treatment and overcome these shortcomings by using nanotechnology. One of the best treatment methods that has the ability to delay a water crisis for years is the use of nano-membranes in MBR technology.

Keywords: Nanoparticles, Nano-Materials, Nanocomposite Membrane, Water Scarcity, Wastewater Treatment, Water Reuse.