Abstract: Abstract:A leachate backejecting treatment technology was introduced. The technology is suitable for mechanical gratetype garbage incinerating boiler. The first step is to pretreat the garbage leachate, the sequent step is to use compressed air to atomize the pretreated leachate and eject it into furnace to incinerate. The technology system is simple and reliable and has strong capability to adapt to load fluctuation. The backejecting incineration technology is true harmless treatment and does not cause secondary sewage discharge. The costs of the construction, installation and operation of the garbage backejecting treatment system are lower. The technology system was applied in multiple garbage incineration power plants successfully and is worth of popularization in the cities where the caloric value of the garbage is higher.

Key words: Keywords:leachate, garbage, incineration, backejecting