Comprehensive household garbage treatment process

Abstract

The invention discloses a comprehensive household garbage treatment process which comprises the following steps: crushing household garbage; screening, and respectively performing gravity separation and magnetic separation after screening, wherein combustible organic matters and light combustibles are separated in the gravity separation process, and soil and metals for greening are separated in the magnetic separation process; performing magnetic separation on materials subjected to gravity separation, wherein organic soil residues, inorganic matters and metals are separated in the magnetic separation process; performing a first treatment step on the organic soil residues; and performing a second treatment step on the combustible organic matters and light combustibles. The process is advanced, reasonable, high in degree of automation and high in treatment capacity, more recycled products with high quality are realized, treatment cost is low, aerobic fermentation treatment processes such as aging and curing and a relative odor concentration process are performed in a closed mode, the waste gas is treated in a centralized mode and is emitted on standard, the further environmental pollution in the household garbage treatment process is avoided, the household garbage is changed into valuable materials, and the recycled products with high market values are produced, so that household garbage harmlessness, reduction treatment and comprehensive resource utilization are realized.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and in particular relates to a comprehensive treatment process for household 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 activit...

AI Technical Summary

Problems solved by technology

[0008] 2. Kitchen waste

[0009] 3. Hazardous waste

[0010] 4. Other garbage

[0014] 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

[0015] 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

[0021] The above-mentioned treatment method is still extensive treatment and has not yet formed a large scale. At the same time, the treatment process is labor-intensive, the treatment efficiency is low, and the treatment process is complicated, the treatment effect is not good, and the intensive treatment is not strong enough, resulting in resource utilization after treatment. There are few varieties and poor quality of products, and they cannot be reused well

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