Municipal solid waste comprehensive treatment method

A technology for municipal solid waste and garbage, applied in chemical instruments and methods, bio-organic part treatment, climate change adaptation, etc., can solve the problems of difficult purification technology, unfavorable incineration, high operating cost, etc., and achieve long-distance transportation and integration The effect of process optimization and design process logic

Inactive Publication Date: 2017-05-31
ANY SCI & TECH DEV
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Problems solved by technology

After garbage incineration, the released heat energy can be used to generate electricity to realize the energy conversion of garbage, but at the same time, garbage incineration will produce a large amount of flue gas, which contains a large amount of HCl and SO due to technical bottlenecks. 2 , NO x , dust and "dioxin" and other pollution factors, improper treatment of flue gas will cause more serious secondary pollution, the purification technology is difficult and the operating cost is high
In addition, because most of the garbage in the city is still collected in a mixed manner, the organic matter content in the garbage is as h

Method used

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  • Municipal solid waste comprehensive treatment method

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[0038] Example 1

[0039] A method for comprehensive treatment of municipal solid waste. The process is as follows: firstly, sorting municipal solid waste into dry solid waste and wet organic waste, sorting into dry solid waste and wet organic waste, and dry solid waste. Mainly organic polymers, namely rubber, plastic, wood products, fabrics, etc. Wet organic waste is leachate and kitchen waste. Then, the dry solid waste is pyrolyzed through the pyrolysis system, and then the pyrolysis oil is added to the oil treatment system for oil treatment, and the pyrolysis oil is prepared into finished diesel through multi-stage fractionation and cracking catalysis. Wet organic waste is passed through the biological fermentation system, heated, continuously stirred, and biologically active agent is added to obtain residual biogas residue after biological fermentation.

[0040] The biogas is purified and impurity removal process through the LNG production system to obtain LNG. The biogas re...

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Abstract

The invention relates to a municipal solid waste comprehensive treatment method, and belongs to the technical field of household garbage treatment. The municipal solid waste comprehensive treatment method is characterized by comprising the following process: firstly, municipal solid wastes are separated as dry solid wastes and wet organic matter wastes; and the dry solid wastes are mainly organic polymers, such as rubbers, plastics, wood products, fabrics and the like. The wet organic matter wastes are leachate and kitchen garbage. Then, the dry solid wastes are pyrolyzed through a pyrolysis system; and the wet organic matter wastes are biologically fermented through a biological fermentation system. The municipal solid waste comprehensive treatment method has the advantages of economy, environmental protection, harmlessness, no secondary pollution, low cost, high efficiency, safety, realization facilitation and benefit maximization, and really realizes resourceful conversion of municipal solid wastes.

Description

Technical field [0001] The invention belongs to the technical field of domestic waste treatment, and particularly relates to a method for comprehensive treatment of urban domestic waste. Background technique [0002] At present, large and medium cities are surrounded by garbage, and some cities have to extend the solution to the garbage crisis to the countryside. This has caused secondary pollution of urban garbage, leading to the deterioration of the ecological environment in the urban-rural integration area. At the same time, the development of urban public utilities and the surrounding industrialization process also produced a large amount of medical and industrial waste. In fact, the current urban comprehensive garbage disposal problem has become a particularly serious environmental problem. [0003] For many years, urban comprehensive waste treatment has mainly adopted three treatment methods: landfill, composting, and incineration. However, most of the urban waste treatmen...

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C05F9/04C12P5/02
CPCC12P5/023C05F9/04B09B3/00B09B5/00B09B3/40Y02W30/78Y02A40/20Y02E50/30Y02W30/40
Inventor 李峰
Owner ANY SCI & TECH DEV
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