Novel treating method of resource recycling of wastes

A treatment method and resource-based technology, applied in the fields of bio-organic part treatment, climate change adaptation, and solid waste removal, can solve problems such as secondary pollution, impact on city appearance, and inconvenience to citizens, so as to save landfill land and reduce tail gas Emissions, the effect of suppressing the production of dioxins

Inactive Publication Date: 2010-09-15
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

Many countries have adopted the method of sorting and collecting garbage, and put many containers for collecting various garbage in the city, which n

Method used

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  • Novel treating method of resource recycling of wastes
  • Novel treating method of resource recycling of wastes
  • Novel treating method of resource recycling of wastes

Examples

Experimental program
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Embodiment

[0023] see figure 1 and figure 2 As shown, a new treatment method for waste resource recycling includes the following steps:

[0024] (1) Rough garbage sorting, the rough garbage sorting process specifically includes: using garbage sorting methods to separate the garbage into combustible components, inorganic substances, some plastic paper and rotten substances;

[0025] (2) combustible component pretreatment and gasification, the combustible component pretreatment and gasification specifically include: after step (1), the combustible component is continued to squeeze moisture through an extruder, and the garbage is dried by a rotary kiln, The combustible components after drying are sent into the gasification furnace through the feeder, and the gasification reaction occurs using air as the gasification medium to generate combustible gas. The combustible gas is purified by venturi and at least two-stage water washing towers. Purify the system, remove the ash and tar in the g...

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Abstract

The invention discloses a treating method of resource recycling of wastes, comprising the following steps of: (1) coarse classification of wastes; (2) pretreatment and gasification of combustible components; (3) an overall process of resource classification, treatment and utilization of the wastes; and (4) combustion power generation of combustible gases, comprising thermal gases generated in the step (2) and the step (3) and combustion power generation of methane introduced into an internal combustion engine. In aspect of municipal solid waste aerobic-anaerobic highly-efficient fermentation technology, the invention solves the difficult problems of slow fermentation starting, long period, difficult bacteria culture and circulation and easy acidosis of municipal solid wastes and simultaneously develops an organic fertilizer production technology aiming at resource utilization of corrodible organic matters; under the same scale, by adopting the treating method, the landfill site is greatly saved and the capitalized cost is only 30 to 50 percent of incineration power generation, which is equivalent to sanitary landfill; and the waste treatment and operation cost does not reach one half of incineration and is close to the cost of the sanitary landfill.

Description

technical field [0001] The invention relates to a new method for treating urban solid waste, in particular to a new method for high-efficiency resource utilization of urban waste. Background technique [0002] Traditional municipal solid waste disposal methods are divided into four types: landfill, composting, incineration and incineration for power generation. Landfill needs to occupy valuable land resources, which is likely to cause secondary pollution to the atmosphere, soil and water, and usually cannot recycle the potential resources in the garbage; Waste cannot be treated, and the degree of resource utilization is low; incineration can process all organic matter, but the resources cannot be recycled, and secondary pollution control is difficult; although incineration power generation can partially utilize waste resources through power generation, but resource utilization The use form is single, the cost is high, and the efficiency is low. [0003] In order to break t...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C05F9/04C10J3/20
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 陈勇袁浩然熊祖鸿李海斌赵增立马隆龙
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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