Garbage treating and utilizing process for small town

Abstract

The garbage treating and utilizing process for small town consists of the steps of manual sorting, incinerating, marsh gas production, etc. The sorting step separates out recyclables, building refuse and cinder to be land filled, and organic refuse to be crushed and anaerobically fermented in marsh gas pond, and rest part to be incinerated in the incinerating furnace. The fermentation step produces marsh gas for burning in the incinerating furnace and providing fuel gas outside and marsh gas residue to be dewatered to produce organic fertilizer. The incinerating furnace produces high temperature fume with heat further utilized, and cinder and fly ash to be land filled.

Description

technical field [0001] The invention relates to a technology for harmless treatment and resource utilization of small town garbage. It is a process technology for sorting and classifying waste in my country's small towns with small output, wide distribution, and complex components, so as to achieve recycling of recyclables, incineration of combustibles, fermentation of organic matter to produce biogas, and landfill of inorganic waste. Background technique [0002] At present, the treatment of urban waste in my country mainly includes sanitary landfill, incineration for power generation, composting and other methods. Since the population of small towns is generally between 20,000 and 50,000, and the largest small town has a population of about 100,000, the daily output of garbage is within 100 tons. Moreover, the sources of waste in small towns mainly include the following aspects, one is domestic waste from residents, the other is a certain amount of construction waste mixe...

AI Technical Summary

Problems solved by technology

Therefore, due to the small amount of garbage in small towns, it does not have the scale of incineration for power generation; the content of coal ash in the garbage is too large, and the content of organic matter is not suitable for composting; and sanitary landfills require a large investment and occupy a lot of land. It can be seen that the urban garbage treatment method is not suitable. small town

The existing treatment methods of small town garbage in my country mainly include: one is simple landfill, which is banned by the state due to serious environmental pollution; the other is simple open burning, the disadvantage of this treatment method is that it causes Environmental pollution, and a large amount of harmful gas is produced during the incineration process; the third is disorderly stacking. The disadvantage of this treatment method is that it causes garbage to besiege the city, breeds mosquitoes and flies, and spreads diseases, which not only affects the environment of the town, but also threatens the people. good health

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