Landfill research focuses on the management and environmental impact of landfills, which are sites where waste materials are deposited and covered with soil. Researchers in this field study various aspects of landfills, including waste composition, leachate generation, gas emissions, and potential risks to human health and the environment. They investigate ways to improve landfill design, operation, and monitoring to minimize negative impacts and promote sustainable waste management practices. Additionally, landfill research often explores innovative technologies for waste treatment, recycling, and resource recovery to reduce the volume of waste sent to landfills and promote a circular economy.