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Treatment process of household garbage

A technology for processing and living garbage, applied in biochemical instruments, biochemical equipment and methods, enzymology/microbiology devices, etc., and can solve problems such as harmful garbage, other garbage, and cannot be used in agriculture.

Inactive Publication Date: 2020-10-30
姚敦卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Kitchen waste
[0007] 3. Hazardous waste
[0008] 4. Other garbage
[0012] 3. Leftovers: A large number of mosquitoes and flies are bred; bacteria in the garbage are multiplied, and toxic gases and methane are produced, causing garbage explosions
[0013] 4. Paints and pigments: paints containing organic solvents can cause headaches, allergies, coma or cancer; they are dangerous flammable products; pigments contain heavy metals, which are harmful to health
It not only solves the way out of garbage, but also achieves the purpose of recycling. However, the amount of domestic garbage compost is large, the nutrient content is low, and it cannot be used for agriculture. It can only be used for greening and other industries that have nothing to do with food. Therefore, the scale of composting is limited. severe market constraints
[0019] In the prior art, most of the domestic waste is treated by incineration, but a large amount of smoke will be generated during the incineration process. Most of the waste will be directly discharged into the atmosphere after being incinerated, resulting in environmental pollution. How to treat the incinerated waste? Scientific, reasonable and efficient treatment of flue gas is a problem we need to solve

Method used

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  • Treatment process of household garbage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] see figure 1 , a treatment process for domestic waste, comprising the steps of:

[0057] S1. Bag breaking: Put the garbage raw materials into the bag breaking machine for bag breaking treatment;

[0058] S2. Magnetic separation: put the waste material after bag breaking into a magnetic separator for magnetic separation;

[0059] S3. Crushing: Put the magnetically separated garbage raw materials into the crusher for crushing treatment. The particle size of the crushed garbage raw materials is less than 60 mesh, and pass through the drum sieve for screening;

[0060] S4. Press filter dehydration: perform press filter dehydration on the crushed garbage raw materials to obtain solid residue and sewage;

[0061] S41. Sewage treatment: treating the sewage obtained in step S4 to produce domestic water that can be used for irrigating crops, thereby irrigating the crops;

[0062] S5. High-temperature incineration: put the solid residue into a high-temperature incinerator with...

Embodiment 2

[0070] On the basis of embodiment 1, the present invention also comprises the following steps:

[0071] S12. Anaerobic fermentation: put part of the residue obtained in S4 into an anaerobic fermentation chamber for fermentation, the fermentation temperature is 40-50°C, and stirring is carried out regularly during the fermentation process;

[0072] S13, residue fertilization: continue to fertilize the remaining residue after fermentation, so as to fertilize the crops;

[0073] S14. Biogas recovery: the biogas produced in the fermentation process is recovered, and methane is obtained through desulfurization and purification.

[0074] This embodiment provides two domestic waste treatment processes.

Embodiment 3

[0076] Example 3 is further optimized on the basis of Example 2. Other waste gas generated during the fermentation process is passed into the waste gas spray tower and steps S7-S11 are performed sequentially to realize waste gas treatment during the fermentation process.

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Abstract

The invention discloses a treatment process of household garbage, and belongs to the technical field of garbage treatment. The treatment process comprises the following steps that S1, bag breaking iscarried out, specifically, a garbage raw material is put into a bag breaking machine for bag breaking treatment; S2, magnetic separation is carried out, specifically, the garbage raw material subjected to bag breaking is placed in a magnetic separator for magnetic separation treatment; S3, crushing is carried out, specifically, the garbage raw material subjected to magnetic separation is put intoa crusher for crushing treatment; S4, filter pressing dehydration is carried out, specifically, the crushed garbage raw material is subjected to filter pressing dehydration treatment, and solid residues and sewage are obtained; S5, high-temperature incineration is carried out, specifically, the solid residues are placed in a high-temperature incinerator for incineration treatment; S6, flue gas collection is carried out, specifically, in the high-temperature incineration process, an air pump is used as a power element to pump out flue gas in the high-temperature incinerator; S7, waste gas spraytower treatment is carried out, specifically, the collected flue gas is introduced into a spray tower to prepare primarily treated waste gas; and S8, primary high-temperature cracking is carried out,specifically, the waste gas subjected to primary treatment is introduced into a high-temperature cracking furnace for primary high-temperature cracking.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, and more specifically, relates to a treatment process for domestic garbage. Background technique [0002] Household garbage refers to solid waste generated in daily life or activities that provide services for daily life and solid waste that is regarded as domestic garbage according to laws and administrative regulations. Domestic waste can generally be divided into four categories: recyclable waste, kitchen waste, hazardous waste and other waste. Commonly used waste disposal methods mainly include comprehensive utilization, sanitary landfill, incineration and composting. Sorting and recycling management of garbage can effectively reduce pollution and increase the reuse of recyclable garbage. According to the "Law of the People's Republic of China on the Prevention and Control of Solid Waste Pollutants", domestic waste refers to solid waste generated in daily life or activities that p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/00F23G5/02F23G5/033F23G5/04F23G5/44F23J15/04F23J15/06B01D47/06B01D53/00C05F9/00C12M1/107
CPCB01D47/06B01D53/00B01D53/002B01D53/005C05F9/00C12M1/107F23G5/006F23G5/02F23G5/033F23G5/04F23G5/444F23J15/04F23J15/06Y02E50/30Y02P70/10Y02A40/20
Inventor 姚敦卫
Owner 姚敦卫
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