Waste-to-Energy (WTE) technologies consist of any waste treatment process that creates energy in the form of electricity, heat or transport fuels (e.g. diesel) from a waste source. In a growing world, where the conventional forms of energy are fast moving towards extinction as well as are contributing generously to global concerns like the greenhouse effect and global warming, the need to innovate and employ alternate or unconventional energy source has become crucial for the existence of a future. These technologies can be applied to several types of waste: from the semi-solid (e.g. thickened sludge from effluent treatment plants) to liquid (e.g. domestic sewage) and gaseous (e.g. refinery gases) waste.

However, the most common application by far is processing the Municipal Solid Waste (MSW),this process is using  by USA and European country. The current most known (WTE) technology for MSW processing is incineration in a combined heat and power (CHP) plant. Waste-to-Energy, also widely recognized by its acronym (WTE) is the generation of energy in the form of heat or electricity from waste. Each month millions of tons of waste is produced. Either they become a part of landfill or are exported to third world countries.  This causes huge environmental impact in terms of wildlife, ecosystems and to human health. Keeping this in mind, many new waste treatment plants have come up and have developed new ways to generate energy from landfill waste.