Complete system of recycling treatment of city household garbage and a method thereof

Abstract

The invention relates to a complete system of recycling treatment of city household garbage and a method thereof. The invention is characterized in that an electronic screen control system controls mechanical transmission and treatment condition of a garbage mechanical classification system, a fertilizer-making system, a plastic classification system, a pulping system and a sewage treatment system by a contact screen and a circuit, the recycling treatment of day treatment for day garbage, closed operation, automatic sorting, no secondary pollution and fully treatment of resources is realized finally, the city household garbage is divided into 48 types, which are combined into 15 types and seven sorts, the classification rate reaches 100 percent, the recycling rate reaches over 99 percent and the whole-range treatment needs 60 to 80 minutes.

Description

technical field [0001] The invention relates to the treatment of domestic garbage, in particular to a complete system and method for resource-based treatment of urban domestic garbage. Background technique [0002] With the development of the economy, the increasing population and the improvement of people's living standards, the amount of urban garbage is also increasing. A large amount of garbage has become a long-standing source of pollution in the city, and the pollution of the environment by garbage has become an increasingly serious problem. question. It is reported that my country's current annual urban garbage production is about 130 million tons, and it is increasing at an annual rate of 7% to 9%. There are 665 large and medium-sized cities in China, and more than 2,300 counties are surrounded by domestic garbage. The land area of ​​long-term storage of garbage in the country has reached more than 500 million square meters. The plight of the city besieged by garba...

AI Technical Summary

Problems solved by technology

[0005] Municipal waste landfill treatment: Since the mid-to-late 1990s in my country, a number of sanitary landfills with layered structures centered on high-density polyethylene impermeable membranes have been built as anti-seepage layers. No matter how perfect the treatment technology is, there are still the following problems: although the landfill method is low in cost, it permanently occupies a large area and occupies a large amount of valuable land around the city, and the recyclable resources in the garbage are completely wasted, seriously polluting the soil and groundwater sources, treating the symptoms but not the root cause

However, most of the existing garbage sorting methods are composting first, followed by sorting, resulting in the mixing of harmful components, and the classification is not thorough, resulting in a lot of waste and debris in fertilizer raw materials, low fertilizer efficiency, and harmful components exceeding the standard

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