Along with the rapid development of the city and greatly enriched people’s daily necessities, the amount of waste is growing quickly. Usually 2 ways, refuse incineration and landfill, are used for refuse disposal, but there are shortcomings of serious pollution and high cost. Based on the summarization of refuse disposal technology both in China and abroad, by means of hydro geological and engineering geological investigation and with salt water spray system, the smells from landfill leachate is effectively relieved and the secondary pollution is prevented.