The Application And Research About X Connty's Urban Garbarge Sanitary Landfill

With the rapid development of modern society, Urban garbage has become serious problems that plague city. Landfill is a popular method used in the garbage disposal in our country. A large quantity of leachate and noxious gas can be produced in disposing of garbage and the degradation of garbage in landfill, it's easy to cause groundwater and surface water envirment polluted. Landfill leachate has complex quality, high concentration organic matter, ammonia nitrogen content high and various quantity of water characteristics.Landfill gas could cause harm such as landfill explosion if it was not handled properly.Based on the systematic analysis of the composition of the garbage,the engineering geological condition, social economic status, water quality characteristics and the situation of garbage treatment technologies at home and abroad, in this paper, we study on the anti-seepage of landfill, landfill gas of guidance, disposal of landfill leachate technology, and puts forward reasonable engineering design methods on this basis.Combining with the construction of country sanitary landfill engineering practice and putting forwarding in engineering design, we should combine with the local geological and hydro geological and engineering geological conditions to choose the rational seepage control design, reasonable site, reasonable plan of leachate treatment and minimize the damage of disposal of garbage to a low level, even harmless.Landfill gas is also one of garbage disposal must attach importance to problem,if it is not handled properly,the landfill gas can cause an explosion accident. So in the design of treatment plant we must collect the landfill gas as soon as possible.Landfill gas is a kind of clean energy,if it can be reasonable collected,we can not only reduce the environment pollution,but also can produce considerable economic benefit.The leachate that are produced during the garbage disposal process is a complicated ingredient high concentrations of waste water.through analysis and comparison,this dissertation adopt USAB+MBR combination process to deal with landfill leachate.