According to statistics, currently the world's daily to produce nearly 30Mt solid waste. China is the most populous country in the world, with the accelerated process of urbanization, the number of municipal solid waste is also increasing rapidly. According to reports, China's urban waste generated in 2000 amounted to 1.02 × 108t, and each year at a rate of about 10% increase. Over the past decade, China's cities have built a number of waste treatment plant, garbage rates incrementally, but far short of needs. Growth garbage plagued ring socio-economic development problems.

Currently, widely used at home and abroad garbage treatment are the following:

1. Landfill: garbage fill the prepared pit covered with compacted to biological, physical and chemical changes, decomposition of organic matter, to achieve minimization and harmless purposes. But for a long time, most of the cities in China are open dumps, natural fill out the ditch and fill the pit manner, without any protective measures, so that a large number of garbage sewage from the surface into the ground, causing serious pollution of the urban environment and groundwater sources, so this kinds of waste disposal methods have gradually been eliminated.

2. Incineration: incineration of the waste placed in a high temperature furnace, a method wherein the full oxidation of combustible components, to produce heat for power generation and heating. The biggest shortcoming of this method is generated in the incineration of dioxin gas, so that only a series of processing on the incineration of toxic and harmful gases, the method to achieve environmental protection. Incineration of a larger initial investment, the construction of a daily processing 1000 tons of garbage incinerator and ancillary heat recovery equipment, takes about 7-8 billion yuan.

3. Composting: the accumulation of garbage piles, insulation 70 ° C, storage, fermentation, With the ability of the microbial decomposition of waste, decompose organic matter into inorganic nutrients. After composting, garbage becomes hygienic, odorless humus. The only way to solve the garbage, but also to achieve the purpose of the resource, but the large amount of solid waste composting, low nutrient content, long-term use could easily lead to soil compaction and deterioration of groundwater quality, so the size of the compost is not easy too.

4. Treatment resources: municipal solid waste are carefully classified according to the different nature of the classified garbage apply suitable methods for processing different kinds of garbage can be used, thus truly waste reduction, harmless and resources. Municipal waste is generally divided into the following four groups:
(1) Material Spam group: glass, magnetic or non-magnetic metal, paper, rubber, plastic
(2) organic waste group: kitchen waste, biological waste
(3) inorganic junk Group: furnace ash, brick, ceramics, etc.
(4) of toxic and hazardous waste Group: waste batteries, waste fluorescent tubes, pesticide containers, expired drugs, medical waste and discarded television, telephone, computer and other waste electrical electronic waste.