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Harmless treatment method for urban domestic garbage

A technology of municipal solid waste and its treatment method, which is applied in the field of new technologies and new uses of harmless and energy-based treatment of municipal solid waste, which can solve problems such as low efficiency, high energy consumption, secondary pollution, etc., and achieve simple process and low investment , The effect of low processing energy consumption

Inactive Publication Date: 2009-10-07
长沙紫宸科技开发有限公司
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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

Method used

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Embodiment Construction

[0028] Implementation of the present invention will at least solve the technical problems of the following six aspects:

[0029] 1. Make full use of combustible energy and inorganic components sio in municipal solid waste without increasing additional energy consumption as much as possible 2 、Al 2 o 3 , Fe 2 o 3 , CaO, MgO and sulfur, fluorine, mercury, lead, copper, cadmium and other elements;

[0030] 2. Ignition temperature and embers, including complete combustion of dioxins and fluorocarbons;

[0031] 3. Effectively eliminate pollution from HCl, HF, SOx, NOx, dioxin, furan and heavy metal elements, and use chlorine, fluorine, sulfur and heavy metal elements as mineralizers;

[0032] 4. Medium and low pressure molding curing and strength problems;

[0033] 5. Harmless disposal of the filtrate of the garbage disposal site and the sorted construction waste, etc.;

[0034]6. The investment should be small, the cycle should be short, the operation should be simple, the ...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00
Inventor 尹小林
Owner 长沙紫宸科技开发有限公司
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