Novel multi-stage treatment process for leaching and compressing household garbage

Abstract

The invention provides a novel multi-stage treatment process for leaching and compressing household garbage and belongs to the field of treatment of household garbage. The treatment process comprises a two-stage leaching bed reactor, a spiral compression device, a sewage treatment device and a water circulation system, wherein the treatment process comprises the following steps: introducing the garbage into a multi-stage leaching bed, leaching by using supernatant liquid of the sewage treatment device, fully leaching under the stirring action of blades to obtain sewage with high content of organic matters, collecting the sewage, continuing to leach by using a secondary leaching solution, pushing residual garbage into a press filtration part, extruding and dewatering until the water content in the garbage is smaller than 40%. By virtue of the novel multi-stage treatment process, the leaching components are removed in the municipal household garbage in the process; the residual garbage is dewatered and compacted; the organic wastewater generated in the process is aerobically or anaerobically treated; by virtue of combination of a plurality of processes, the purpose of quickly and efficiently reducing volume and quantity of the municipal household garbage is achieved.

Description

technical field [0001] The invention belongs to the field of domestic waste treatment, and relates to a new type of domestic waste leaching compression treatment process. Background technique [0002] With the continuous development of my country's society and economy and the continuous improvement of people's living standards, urban domestic waste has increased year by year, and high moisture content, high organic matter and other characteristics have become important factors that are difficult to deal with. Various regions are seeking a very economical, energy-saving, Environmentally friendly domestic waste reduction, stabilization, and recycling technologies. [0003] In my country, kitchen waste components (about 40% to 70%) have the highest component content in municipal solid waste. This part not only increases the amount of cleaning and transportation, but also leads to high moisture content, rich organic matter content, and easy corruption. , breeding mosquitoes and f...

AI Technical Summary

Problems solved by technology

The invention has reasonable structure, small volume preservation and stable treatment, but the treatment residence time is longer

And the treatment process is poorly systematic, the separated inorganic substances have not been properly disposed of, and the process is not perfect; Chinese patent 201210115274.6 discloses a multi-stage bioleaching reactor process and equipment for sludge treatment, including multi-stage bioleaching Reactor, sludge thickening tank, aeration device, sludge internal return pump, sludge external return pump, dehydration pump, box filter press, etc.

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