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Domestic waste incineration recycling process

A technology of domestic waste incineration and domestic waste, which is applied in the field of domestic waste incineration and recycling technology, can solve the problems of high disposal costs and large financial resources, and achieve the effect of saving landfill costs and avoiding secondary pollution

Active Publication Date: 2018-05-01
于继林
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires a great deal of financial, material and manpower to dispose of fly ash, and the disposal costs are expensive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1, this household garbage incineration recycling process comprises the following steps: (1) household garbage is transported into the treatment plant area, unloaded in a closed garbage storage, and the garbage is crushed by a garbage crusher and sent to a fermentation tank, and fermented. The tank is surrounded by a 40-50cm thick reinforced concrete maintenance wall. The bottom of the fermentation tank is funnel-shaped, and a leachate filtration device is installed at the bottom of the fermentation tank. The filtered landfill leachate is collected in the collection tank and discharged into the leachate treatment system. In the regulating tank, coagulation sedimentation, anaerobic reaction, MBR, and nanofiltration treatment processes are used to treat the leachate in sequence, and the treated reclaimed water that meets the discharge standard is discharged into the reclaimed water reuse system as billet-making water for the tunnel kiln. The sludge produced after...

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Abstract

The invention discloses a technology for incineration and recycling of domestic garbage. Process steps: (1) Garbage crushing and fermentation, leachate treatment, standard reclaimed water to make billets, sludge drying and incineration, biogas combustion; (2) Garbage incineration, the coke residue and fly ash after incineration are collected for use, and the generated thermal energy is used for power generation (3) The high-temperature flue gas from the waste heat boiler is used for green body drying; (4) Coke slag and fly ash are mixed with shale soil, coal gangue, and polluted soil from the original domestic waste landfill, ground and refined, and made into green bodies. Sent into the tunnel kiln for firing at 850-1100°C for 25-28 hours. The fly ash and coke residue in the bricks contain heavy metals and dioxins. The continuous high temperature can completely decompose the dioxins and solidify the heavy metal elements in the bricks. , forming stable salt minerals. Advantages: Dioxins are completely decomposed, heavy metal elements are solidified in bricks, and stable salt minerals are generated for harmless reuse, saving landfill costs, turning waste into treasure, creating value, and avoiding secondary pollution.

Description

technical field [0001] The invention relates to a domestic waste utilization process, in particular to a domestic waste incineration recycling process. Background technique [0002] With the continuous acceleration of my country's urbanization process, urban domestic waste has increased rapidly with the increase of urban population. How to completely and harmlessly dispose of municipal solid waste is a difficult problem facing people all over the world. At present, the common way to deal with municipal solid waste at home and abroad is landfill or incineration. Domestic waste landfill not only requires a vast site, but also is expensive, and there is a potential danger to the surrounding environment and groundwater pollution. While domestic waste incineration is harmless and reducing municipal solid waste, it also produces new waste—coke slag and fly ash produced by incineration, especially fly ash. Fly ash contains a large amount of heavy metals and dioxins, which can be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00
Inventor 于继林
Owner 于继林
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