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H2S endogenesis cutting-down method and device of quasi aerobic landfill

A technology of endogenous reduction and H2S, which is applied in the field of endogenous reduction of H2S odor, can solve the problems of lack of source control methods and achieve the effect of reducing H2S release

Active Publication Date: 2015-01-07
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Generally speaking, after research and exploration in recent years, in the landfill H 2 S Odor prevention and control technology has achieved certain results, but these methods are mainly focused on terminal control, lacking effective source control means

Method used

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  • H2S endogenesis cutting-down method and device of quasi aerobic landfill
  • H2S endogenesis cutting-down method and device of quasi aerobic landfill
  • H2S endogenesis cutting-down method and device of quasi aerobic landfill

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Embodiment 1

[0064] Such as figure 1 Shown is a schematic structural view of an independent treatment unit (simulated landfill reactor) of the present invention, comprising a reactor shell 1, the reactor shell 1 is an open type, gravel layer 11, garbage layer 12 and fine sand cover The layer 15 is buried in the reactor shell 1 from bottom to top in sequence. Below the gravel layer 11 is the leachate layer 10. The shell of the leachate layer 10 is provided with vents 9, and the number of vents is generally set to 3 to 4. A regulating pool 7 is set near the reactor shell 1, the leachate layer 10 is connected to the regulating pool 7 through the leachate discharge inlet pipe 8, and the inlet of a refill pump 6 is connected to the regulating pool 7.

[0065] The above structural parts can all adopt conventional processing equipment in the field. In this embodiment, the emphasis is on improving the structure of the leachate recharge system. The leachate recharge system includes a vertical rech...

Embodiment 2

[0094] For large landfills, such as figure 1 Several units shown run in parallel, can be used as will figure 1 The reaction devices shown are used in parallel, and can also be divided into several units in a large landfill, and the setting of the recharge system in each unit is as follows: figure 1 For the recharge system shown in , the recharge systems in all units are controlled in parallel, such as figure 2 with image 3 Shown is the second parallel operation mode.

[0095] The center of each unit is provided with a vertical gas guide pipe 13, and the garbage layer in the unit is divided into an aerobic zone 16, an aerobic zone 17 and an anaerobic zone 18 in turn with the vertical gas guide tube 13 as the center. , the first vertical reinjection well 2 and the second vertical reinjection well 3 are evenly distributed in the garbage layer around the vertical gas guide pipe 13, and all the vertical reinjection wells are distributed on two opposite sides of the unit cro...

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Abstract

The invention discloses an H2S endogenesis cutting-down method and device of a quasi aerobic landfill. The device comprises a reactor shell, an adjusting tank, a recharge pump, a vertical gas guide and exhaust pipe, a plurality of vertical type recharge wells and a horizontal recharge net. A fine sand cover layer, a garbage layer, a gravel layer and a percolate layer are arranged in the shell; the vertical gas guide and exhaust pipe is arranged at the central position of the reactor shell and penetrates through the fine sand cover layer and the garbage layer; the vertical type recharge wells are arranged around the vertical gas guide and exhaust pipe, water outlets of the vertical type recharge wells extend to the positions with different heights in the garbage layer, and top inlets of the vertical type recharge wells are communicated with the adjusting tank through the recharge pump; the horizontal recharge net is arranged in the garbage layer and is communicated with the adjusting tank through the recharge pump. According to different separated areas in the quasi aerobic landfill, target recharge of percolates is carried out, rich iron resources in the landfill are fully utilized, the biological oxidoreduction cycling of iron can be achieved through the physical, chemical and biological process inside the landfill, and therefore the endogenesis cutting-down aim of the H2S can be achieved.

Description

technical field [0001] The invention relates to the field of solid waste treatment, in particular to a method based on the biochemical action of iron in the landfill on H 2 Endogenous reduction method and device of S stench. Background technique [0002] There are many treatment methods for municipal solid waste. Landfill treatment technology is currently the main waste treatment method at home and abroad due to its advantages of low construction investment, low operating cost, low technical requirements, and the ability to recover landfill gas (biogas). According to statistics, at present, the amount of landfill in my country's municipal solid waste treatment has reached more than 60%. main method of processing. With the continuous expansion of cities and the rapid increase of domestic waste production, some landfills in my country are gradually being surrounded by residential areas, and the stench of landfills has become one of the most widely complained environmental haz...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00
Inventor 龙於洋杜耀沈东升冯华军汪美贞申屠佳丽殷峻周玉央李娜
Owner ZHEJIANG GONGSHANG UNIVERSITY
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