Harmless treatment method for urban domestic garbage

Abstract

A harmless and energy-based treatment method for municipal domestic waste. After the municipal domestic waste is sorted, it is crushed. After the crushing, lime is added, and a binder and a combustion aid are added to mix the materials. Finally, it is formed, solidified and dried. Its use As a low calorific value fuel for cement production. The invention has the advantages of low investment, simple operation, harmless treatment of urban domestic garbage, energy conversion, and elimination of secondary pollution. It is an environmental protection technology and provides new energy and new uses for building material production.

Description

Technical field: [0001] The invention relates to the development and application of an environmental protection technology, in particular to a new technology and new application of harmless and energy-based treatment of urban domestic garbage. Background technique: [0002] The amount of urban domestic waste in my country is increasing at an average annual rate of 9%, and the average annual growth rate of some urban domestic waste is 15-20%. The per capita daily domestic waste is 1.16kg. The amount of domestic waste piled up around the city has reached more than 6 billion tons over the years, occupying at least 500 million square meters of ground. Now, the newly increased urban domestic waste in the country is placed in simple landfills or open-air piles in the suburbs of cities and along rivers. More than 80 million tons. [0003] The direct stacking and simple burial of domestic waste release a large amount of harmful gases into the atmosphere, which contain carcinogenic ...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in view of my country's large population, relatively scarce resources, huge energy consumption, rapid urbanization expansion, large increase in urban domestic waste, and the large energy consumption and low efficiency of the existing technology for processing urban domestic waste. to solve the problem of serious secondary pollution; to provide a low-investment, simple operation, which can make full use of the energy of combustibles in municipal solid waste and the available components in inorganic non-combustibles, eliminate secondary pollution, and provide new energy and new uses for building materials production New methods and new uses of harmless and energy-based treatment of municipal solid waste