Vertical circulating backfilling method of household garbage

Abstract

The invention provides a vertical circulating backfilling method of household garbage and relates to the technical field of environmental protection. The vertical circulating backfilling method comprises the steps of: arranging a vertical backfilling region with a cuboid structure, which is close to a region to be backfilled, and arranging an unloading platform at the same side of the region to be backfilled; then, arranging a vertical backfilling bracket array at the opposite side of the unloading platform; arranging movable conveying equipment with a receiving hopper, a material distribution mechanism and a transmission belt at the middle part of the region to be backfilled and finishing the backfilling at the two sides in sequence to form a vertical backfilling region; after a backfilling operation period and regional backfilling are finished in one vertical backfilling region, carrying out gas-liquid extraction treatment; horizontally or vertically moving the vertical backfilling bracket array to the opposite side of the unloading platform and keeping a vertical guide pipe at the original position of the current vertical backfilling region; and preparing to set the operation of the next region to be backfilled until the backfilling of a whole backfilling field is finished, and carrying out soil backfilling, plant paving and field sealing treatment. According to the vertical circulating backfilling method, the energy consumption can be effectively reduced and the generation times of backfilling gas and backfilling is effectively reduced.

Description

technical field [0001] The invention relates to a method in the technical field of environmental protection, which is suitable for newly built small and medium-sized landfills with domestic garbage landfill volume of 100-500t / d, insufficient leachate treatment capacity, and landfill gas escape. Domestic garbage vertical circulation landfill method. Background technique [0002] With the growth of urban population and the expansion of urban scale, the average annual growth rate of domestic waste in my country is as high as 8% to 10%, and the growth rate in some cities is even as high as 15% to 20%. According to the data from the National Bureau of Statistics, in 2011, the volume of domestic garbage removal and transportation in my country reached 158 million tons, of which 106 million tons were sanitary landfills, accounting for 67% of the total removal and transportation. Domestic waste landfill technology is a disposal technology with wide application, simple process and m...

AI Technical Summary

Problems solved by technology

[0005] 1) The construction operation must be coordinated by bulldozers, and the construction radius is at least 50m. For small and medium-sized landfills, the work efficiency is low and the landfill energy consumption is too high;

[0006] 2) Landfill gas collection and stable drainage of leachate cannot be realized;

[0007] 3) The overall open construction leads to a large amount of odor in the landfill

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