Biological drying treatment device and method for domestic garbage

Abstract

The invention discloses a biological drying treatment device and method for domestic garbage. The biological drying treatment device comprises a biological drying chamber, a wastewater evaporation system, a condensation conversion system, an auxiliary system, an online exhaust gas and supply air monitoring system, an exhaust gas and supply air cyclic utilization system, and an automatic productionand distribution control system. According to the invention, wastewater evaporation and condensation conversion technologies of the invention can convert high-concentration percolate wastewater intolow-concentration condensed wastewater, so wastewater treatment difficulties and treatment cost are lowered; online monitoring and cyclic utilization technologies can reduce the supply volume of a fresh air source, decrease the amount of exhaust gas treated by an end exhaust gas treatment system and lower the cost of exhaust gas treatment; and an automatic distribution control system (DCS) can realize on-line monitoring of the parameters of a biological drying production process, centralized control of remote terminals and automatic execution of procedures, so the automation management level of a project is improved.

Description

technical field [0001] The invention relates to the field of garbage treatment, in particular to a biological drying treatment device and treatment method for domestic garbage. Background technique [0002] With the improvement of living standards of urban people, the composition of domestic waste is becoming more and more complex, and the amount of waste is gradually increasing. However, our quality requirements for the living environment have been gradually improving, and we have paid more and more attention to the control of various types of pollution. Therefore, we need to put forward new requirements and goals for the harmlessness, reduction, and recycling of domestic waste. [0003] At present, various cities in China have successively carried out waste classification work. Kitchen waste with low classification level has the characteristics of high moisture content, high salt content, high organic matter, etc., and is still mixed with a lot of non-perishable substance...

AI Technical Summary

Problems solved by technology

Existing product (process technology) defect: kitchen waste contains a large amount of perishable waste with high moisture content, which makes the waste particles sticky, and it is difficult to directly sort them by automatic machinery

If kitchen waste is treated with aerobic composting, the composting cycle will take nearly 60 days or longer. Too long a processing cycle will affect the processing capacity of the project, and the composted products after composting still need to face difficulties in market promotion and use.

If kitchen waste is directly disposed of in landfill, it will cause secondary pollution to the surrounding environment of the landfill due to landfill gas, stench, leachate, etc. from perishable waste. Currently, the country is gradually implementing the policy that untreated primary household waste should not be directly landfilled

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