Active landfill method of urban domestic garbage

Abstract

The invention relates to an active landfill method of urban domestic garbage, which comprises the following steps of: adopting subarea operation for garbage landfill, carrying out anaerobic treatment on the landfilled garbage, carrying out aerobic treatment on the landfilled garbage after the anaerobic treatment, sorting the garbage after the aerobic treatment and sorting unusable residues for landfill treatment. By the steps, 100% of hazard-free treatment, 75.5% of reduction and 45.5%recycling of the urban domestic garbage are realized. The use time of a garbage landfill field is prolonged by 75.5%, thereby the sustainable landfill is farthest realized.

Description

Active landfill method of municipal solid waste technical field The invention relates to an active landfill method of municipal domestic waste, in particular to an active landfill method capable of realizing the harmlessness, reduction, resource utilization and prolongation of the service life of the municipal domestic waste. Background technique The main methods of municipal solid waste treatment are landfill, composting, incineration and other treatment methods. Among them, landfill is currently the most important method for disposing of municipal solid waste in my country, and more than 90% of domestic waste is disposed of by landfill. Landfill technology requires less investment, simple process, and can handle all types of waste. However, in the long run, landfilling has great potential hazards. For example, bacteria and viruses remaining in garbage will not lose their biological activity with landfilling. There are hidden dangers in methane and heavy metal pollution ...

AI Technical Summary

Problems solved by technology

However, sanitary landfills require a lot of land, and the waste landfill in Beijing alone requires more than 500 mu of land every year, and the annual waste is still increasing at a rate of 8%.

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