What are the main ways of traditional municipal waste disposal at present

There are three ways of municipal waste treatment methods: 1. Comprehensive utilization. Comprehensive utilization of municipal waste including sorting, recycling, transformation of three processes: first, the sorting of municipal waste. Will be mixed together in the municipal waste separation of its components, is the recycling of the necessary pre-processing procedures. At present, manual sorting is mainly used, which is inefficient and costly, and seriously affects the development of recycling. Therefore, automated and mechanized sorting technology has become a key issue for the large-scale economic development of recycling. Currently being researched and developed mechanized and automated sorting methods, mainly based on the physical properties of waste (shape, size, specific gravity, color, magnetism, electrical conductivity, electromagnetic radiation absorption and radioactivity, etc.) differences.

The second is the recovery of municipal waste. Recycling of waste paper, waste glass, waste metals in municipal waste, organic matter separated from the waste, after physical processing to become reused products. Paper and paper products waste in the municipal waste accounted for a fairly high proportion of recycling can be used to make pulp, the production of lower quality paper and paper products.

Third is the transformation of municipal waste. Through chemical and biochemical methods, waste can be converted into useful substances, which is a new recycling pathway being developed. Conversion is divided into chemical conversion and biochemical conversion. Chemical conversion includes pyrolysis, hydrolysis, hydrogenation and oxidation. Biochemical conversion is through the role of microorganisms will be converted into useful substances. Organic waste through aerobic digestion can be made into humus-like fertilizer, also known as composting.

: There are two problems with sanitary landfills, one is the leaching effect, and the other is that the biological decomposition of waste in the landfill stratum produces a large amount of gas (methane). The way to control leaching is to install leachate collection and treatment systems. The way to prevent the collection of large volumes of decomposition gas is to set up exhaust ports so that the decomposition gas can escape into the atmosphere in time. If possible, the gas should be recycled to generate electricity, heat or vehicle fuel.

Legal basis: "Chinese people's *** and solid waste pollution prevention and control law" Article 43 of the local people's governments at or above the county level shall accelerate the establishment of classified put, classified collection, classified transportation, classified treatment of living garbage management system to achieve the classification of living garbage system effective coverage. Local people's governments at or above the county level shall establish a coordination mechanism for the classification of household garbage, and strengthen and coordinate the management capacity of household garbage classification.