A kind of method of recycling rubbish mountain

Abstract

The invention relates to a method for circularly processing a garbage mountain. The method for circularly processing the garbage mountain comprises the following five cycle steps: performing dry distillation in closed condition, collecting and condensing, combusting, sintering for brickmaking, and returning a dry distiller. According to the method for circularly processing the garbage mountain, provided by the invention, the accumulated garbage mountain is effectively treated, and the cyclic repeating operation of treating the garbage mountain can be realized; the garbage mountain is very thoroughly treated through dry distillation in closed condition, without emitting harmful gases such as tetrachlorodibenzo-p-dioxin; available gases decomposed by organic matters are collected to be used as a chemical blending agent, and thus the economic benefit is generated; the energy generated in the treatment process is recycled, and energy consumption is greatly reduced, so that the treatment cost is lowered; garbage combusted at a high temperature is sintered to make bricks, all residues are utilized without being backfilled again and occupying the state owned land, and a certain economic benefit is achieved.

Description

technical field [0001] The invention belongs to the fields of chemical engineering and environmental protection, and in particular relates to a method for recycling garbage mountains. Background technique [0002] Most cities in China have landfills, which are used to pile and fill domestic waste, which accumulates over time and becomes mountains over time. Garbage must be well isolated to reduce damage to groundwater and the environment, so plastic impermeable membranes are used at the bottom of the landfill to isolate garbage from the soil, and the service life of plastic impermeable membranes is only 70 years at most. The process of burying will also cause damage to the plastic impermeable film, and the pile of garbage takes up a lot of land, and the height is continuously increased during the stacking process, so that the groundwater source is polluted and the environment is damaged. Therefore, it is imminent to deal with the existing garbage mountain. . [0003] At pr...

AI Technical Summary

Problems solved by technology

Because the garbage is wet and not easy to burn, it needs to be mixed with a large amount of combustion aids, the energy consumption is high, and the composition of the garbage is very complicated. Direct combustion will emit harmful gases, and the residue after combustion is also difficult to dispose of.

In addition, most of the organic matter in the biodegradable part of the garbage mountain has been degraded, and the content of organic matter, metals, and plastics is low, and the value of renewable utilization is not great. The accumulated heavy metals and the generated persistent organic pollutants are more harmful to the environment. There has been no way to completely eliminate it

In addition, most of the existing garbage disposal methods are to deal with fresh garbage. There are no reports on the effective treatment of piles of old garbage mountains, and it is impossible to realize the repeated operation of the garbage treatment cycle, and the waste gas generated by combustion cannot Disposal, and excessive energy consumption in the combustion process, resulting in energy waste, and the slag and residue after combustion cannot be effectively used

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