Anaerobic decomposition carbonization treatment method for organic solid wastes and treatment system thereof

Abstract

The invention provides an anaerobic decomposition treatment method for organic solid wastes and treatment system thereof. The method includes the following steps that solid-waste treatment objects aredehydrated, dried and decomposed under the heating condition, and carbon powder and decomposition gas are obtained; the decomposition gas is separated refined, and cracked oil, water and combustiblegas are obtained. The treatment system comprises a central control unit, an intermittent decomposition reaction kettle, a decomposition-gas separation refining device and a combustible-gas storage cabinet, wherein the intermittent decomposition reaction kettle, the decomposition-gas separation refining device and the combustible-gas storage cabinet are sequentially communicated, and the central control unit controls the intermittent decomposition reaction kettle, the decomposition-gas separation refining device and the combustible-gas storage cabinet to run. By means of the intermittent treatment method, miniaturization treatment can be achieved, the treatment scheme is simple, few devices are used, the cost is low, the organic solid wastes are not required to be sorted and smashed at thefront stage, are directly put into the intermittent decomposition reaction kettle, and can be decomposed and converted into 'oil', 'gas' and 'carbon', the treatment process is closed in the whole process, and pollution is not charged in the environment.

Description

technical field [0001] The present invention relates to the technical field of organic waste treatment, and specifically relates to a method of using high-temperature thermochemical reactions to intermittently treat organic wastes such as domestic garbage, agricultural and forestry wastes, and sludge, as well as hazardous waste mainly composed of organic solid waste. Make it turn waste into treasure, the treatment process is pollution-free, and meets the discharge standard. Background technique [0002] With the gradual advancement of industrialization and urbanization in our country, the solid waste treatment problem of municipal solid waste has attracted more and more people's attention. At present, the annual output of urban waste in my country has exceeded 200 million tons, and the average annual waste production per person is about 300 kilograms, and the growth momentum has not diminished. In recent years, the growth rate has basically been 10%. Many data show that abo...

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Problems solved by technology

[0006] The incineration treatment reduces the amount thoroughly and the treatment speed is fast, but the dioxin produced by the incineration treatment and the fly ash and slag containing heavy metal ions seriously pollute the environment.

[0007] The biggest problem with the sanitary landfill method is the difficulty of site selection. Not all urban suburbs can find suitable landfill sites, and it is becoming increasingly difficult to find suitable landfill sites, and landfill sites far away from cities will increase even more more shipping costs

In addition, with the improvement of landfill disposal standards, the disposal cost of sanitary landfill method will become higher and higher.

[0008] The main problems of landfill disposal are: (1) Organic matter enters the landfill, and the landfill becomes a sewage processing plant; (2) The bulk density of garbage is different, and the ground settlement is inevitable. In some cases, the anti-seepage membrane will inevitably not be damaged, and the percolation water will pollute the groundwater from time to time.

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