GREEN SYNTHESIS OF NANOPARTICLES AND THEIR APPLICATION IN TREATING LEACHATE OF MUNICIPAL SOLID WASTE LANDFILLS – A REVIEW

The major challenge in municipal solid waste management using landfills is leachate, which causes a significant threat to subsurface resources. Leachate is the liquid that passes through soil and has extracted dissolved and suspended solids from it. Municipal solid waste landfills are one of the severe environmental impacts on the urban environment. Landfills are one of the practices of disposal of municipal solid waste in the Indian scenario. Understanding the leachate composition is an equally important and critical factor in terms of environmental production. When the municipal solid waste is buried in a landfill, physical, chemical and biological reactions occur, and the refuse reacts with the moisture present in the soil. Studying leachate characteristics and its treatment is essential as it could threaten the ecosystem. Rapid urbanization is one of the major contributions to the generation of municipal solid waste. The present study reviews the different applications available to treat the leachate generated from municipal solid waste landfills. Nano-particles are recently gaining great interest in the protection of the environment, which will ensure sustainable development.