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Reutilization method for domestic waste resources

A technology for household waste and resources, applied in the direction of organic fertilizer, climate change adaptation, etc., can solve problems such as increased operating costs and secondary pollution, and achieve the effect of reducing construction costs, reducing requirements, and enhancing the value of recycling.

Inactive Publication Date: 2019-01-29
四会市华永兴再生资源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the garbage contains certain metals, incineration will produce secondary pollution
Incineration requires that the calorific value of the garbage is greater than 3.35MJ / kg, otherwise, a combustion aid must be added, which will increase the operating cost to an unbearable level for ordinary cities

Method used

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  • Reutilization method for domestic waste resources

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Effect test

Embodiment Construction

[0021] Below in conjunction with the specific implementation mode for further description:

[0022] Mix two tons of household waste and divide them into two parts. The first part is processed by normal incineration and then sprayed with clean water to obtain ash A with a water content of 80%.

[0023] The second part manually classifies domestic waste into combustion products and decomposition aids. Decomposition aids include poultry feathers and down jackets, and domestic waste other than decomposition aids is combustion products; feathers and down jackets are crushed into pieces by a shredder Material spare.

[0024] The fuel is mixed with sea sand and put into an incinerator for incineration. The water content of the sea sand is less than 20%, and the weight ratio of the fuel to sea sand is 100:7.

[0025] The heat energy generated by combustion is used for preheating the next batch of combustion products, and the heat is used for heating; the ashes generated by combustion...

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Abstract

The invention relates to the technical field of resource regeneration, specifically to a reutilization method for domestic waste resources. The reutilization method comprises the following steps: manually classifying domestic wastes into combustion products and decomposition auxiliary agents, mixing the combustion products with sea sand, putting an obtained mixture into an incinerator, and carrying out incineration, wherein the weight ratio of the combustion products to the sea sand is 100: 7; preheating a next batch of the combustion products with heat energy generated by combustion, whereinresidual heat is used for supplying heat; pouring discharged ash produced by combustion into a reaction pool; mixing the decomposition auxiliary agents with bacillus megaterium, metal-resistant cupriavidus metallidurans and yeast, and pouring an obtained mixture into the reaction pool; and taking two thirds of a mixture out of the reaction pool after three hundred days. According to the invention,through further treatment to the ash of the incinerator, the ash is turned into a nutrient-rich inorganic fertilizer for planting, so the recycling value of the domestic wastes is greatly improved; the domestic wastes have economic values in heat supplying and power generation, so the requirement of the domestic wastes for thermal energy values is reduced, and the construction cost of the incinerator can be reduced.

Description

technical field [0001] The invention relates to the technical field of resource regeneration, in particular to a method for recycling domestic waste resources. Background technique [0002] Domestic waste can generally be divided into four categories: recyclable waste, kitchen waste, hazardous waste and other waste. Commonly used garbage methods mainly include comprehensive utilization, sanitary landfill, incineration and composting. However, due to production costs and disposal land, domestic waste is generally disposed of by incineration. The incineration method is a method in which the garbage is placed in a high-temperature furnace to fully oxidize the combustible components, and the heat generated is used for power generation and heating. The waste-to-energy system jointly developed by Westinghouse Corporation and O'Connor Corporation of the United States has been successful. The incinerator of this system can turn the garbage with a humidity of 7% into dry solids fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/00C05F9/04
CPCC05F9/00C05F9/04Y02A40/20
Inventor 宋悦
Owner 四会市华永兴再生资源有限公司
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