Denitrification facultative type domestic refuse bioreactor landfill and leachate recirculation process

A bioreactor and domestic waste technology, applied in gas production bioreactors, aerobic and anaerobic process treatment, waste fuel, etc., to achieve the effects of reduced treatment costs, simple construction and construction of facilities, and reduced costs

Inactive Publication Date: 2007-08-15
TSINGHUA UNIV
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Problems solved by technology

[0005] The present invention proposes a denitrification and oxygenation type domestic garbage bioreactor landfill. Aiming at the problems of ammonia nitrogen accumulation and garbage stabilization in the existing anaerobic bioreactor landfill, the landfill is divided into stable areas, stable production The methane area and the area being landfilled are used as recharge landfill units; and these landfill areas are connected in parallel in

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  • Denitrification facultative type domestic refuse bioreactor landfill and leachate recirculation process
  • Denitrification facultative type domestic refuse bioreactor landfill and leachate recirculation process

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Embodiment 1

[0031] Example 1: This example is a preferred example.

[0032]As shown in Figures 1 and 2, the waste stabilization time of the bioreactor landfill is 6 years, so 6 landfill units are set up, and the capacity of each landfill unit is designed according to the waste treatment capacity of one year. A leachate collection pipe is set at the bottom of the buried layer. The collection pipe can flow into the leachate adjustment tank through the two-way valve control through the leachate collection tank for refilling pretreatment or into the physical and chemical treatment facility for further treatment and discharge according to the standard. Next, you can also set the controller to realize automatic control of this function, reduce personnel input and improve later operation efficiency. At the same time, a 2m high garbage dam was built between each landfill unit to prevent leachate from flowing into other landfill units when the water level in the landfill is high. Starting from the fir...

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Abstract

The invention discloses a denitrify oxidizing lift waste biological reactor stuff field and filter liquid reflux technique, wherein the stuff field comprises a stabilize area, a stable methane area, a positive stuff area, while each area is connected with two filter liquid collecting pool, and each collecting pool is connected with one one-way valve connected with a filter liquid adjusting pool and connected to an on-site treatment sewage processing industry via valves. The invention utilizes the ability of biological reactor stuff field that absorbs nitrate and resists nitrated, and collects, pretreats and refluxes the filter liquid to obtain circular biological treatment conditions as aerobic, facultative, anaerobic, aerobic or the like. The invention can hold the COD density of outlet filter liquid under 1000mg/L, the NH3-N density under 15mg, and the total nitrogen remove rate higher than 90%.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection, and specifically relates to a denitrification and oxidization type domestic garbage bioreactor landfill and a leachate refilling process. Specifically, this process uses off-site pre-aeration of the leachate or addition of chemical agents (nitrates), and then refills it into the landfill for on-site denitrification, and finally achieves the pollution removal of the leachate (organic matter, ammonia nitrogen) And the rapid stabilization of landfilled domestic waste, increase the rate of generation of landfill gas in the bioreactor landfill, and realize the coordinated removal of carbon and nitrogen from the landfill. At the same time, by optimizing the design, the repeated recycling of waste landfill units is realized, which greatly saves landfill space. Background technique [0002] The treatment and disposal methods of municipal solid waste are mainly incineration, composting and lan...

Claims

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Application Information

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IPC IPC(8): B09B5/00B09B3/00C02F3/30C12M1/107C12P5/02
CPCY02E50/343Y02E50/30Y02W10/37Y02W30/20
Inventor 蒋建国张妍杨国栋邓舟
Owner TSINGHUA UNIV
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