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Organic waste combined anaerobic digestion treatment device and method

A technology of organic waste and anaerobic digestion, applied in biochemical cleaning devices, biochemical equipment and methods, biological sludge treatment, etc., can solve the problems of low utilization rate of organic waste, low production and maintenance costs, and low treatment efficiency. Achieve the effect of increasing unit capacity, simple structure and high reliability

Inactive Publication Date: 2016-03-23
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic waste treatment system includes organic waste pretreatment device, medium constant temperature anaerobic reaction device, biogas purification and storage device, overflow tank, solid-liquid separation device and sewage treatment system; although the system has low cost, resource saving, etc. Advantages, but the treatment efficiency is low, and the utilization rate of organic waste is also low
[0004] How to provide a kind of mechanism is simple, the production and maintenance cost is low, can improve treatment efficiency, improve the utilization rate of organic waste, have the efficient organic waste treatment device and method that do not lose practicability and be called a problem demanding prompt solution

Method used

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  • Organic waste combined anaerobic digestion treatment device and method
  • Organic waste combined anaerobic digestion treatment device and method

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Embodiment 1

[0036] Such as figure 2 shown.

[0037]A combined anaerobic digestion treatment device for organic waste, comprising an improved plug flow anaerobic reactor 4 and a plug flow anaerobic reactor 5 connected in sequence; the improved plug flow anaerobic reactor 4 is provided with Plug-flow device; the plug-flow anaerobic reactor 5 is provided with a biogas slurry reflux device; the outlet of the plug-flow anaerobic reactor 5 passes through the biogas slurry reflux device and the inlet of the improved plug-flow anaerobic reactor 4 connected. The improved plug flow anaerobic reactor 4 is a fermentation device combining plug flow, mixing and high concentration, which is suitable for high concentration and dry anaerobic fermentation; the improved plug flow anaerobic reactor 4 is equipped with a push flow device, which is continuously pushed to the rear end of the reactor in a plug flow manner, and the gas production efficiency is high; the biogas slurry return device sends part of...

Embodiment 2

[0039] The organic waste combined anaerobic digestion treatment device as described in Example 1 is different in that the improved plug flow anaerobic reactor 4 and the plug flow anaerobic reactor 5 are steel-concrete structures. The steel-concrete structure has the advantages of good seismic performance, strong integrity, strong corrosion resistance, and durability. The bottom of the plug flow anaerobic reactor 5 is provided with a stirring device. A stirring device is installed at the bottom of the reactor to increase the biogas stirring and improve the material mixing degree. The flow pushing device is a submersible flow pushing device. The improved plug flow anaerobic reactor 4 and the plug flow anaerobic reactor 5 are respectively connected with a biogas storage tank. The biogas storage tank stores the biogas generated by anaerobic reaction and provides stable flow and pressure for subsequent utilization.

Embodiment 3

[0041] The combined anaerobic digestion treatment device for organic waste as described in Example 2, the difference is that the biogas storage tank is a flexible gas storage tank, and the flexible gas storage tank is detachably arranged in an improved plug flow anaerobic The top of Reactor 4. A detachable flexible gas storage tank is installed on the top, which is safe to use and easy to maintain. The outlet of the biogas storage cabinet is sequentially connected with a gas-water separator 8 , a desulfurization tank 9 , a flame arrester 10 and a booster fan 11 . The gas-water separator 8 and the desulfurization tank 9 dehydrate and desulfurize the generated biogas.

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Abstract

The invention relates to an organic waste combined anaerobic digestion treatment device and method. The organic waste combined anaerobic digestion treatment device comprises an improved plug flow type anaerobic reactor and a plug flow type anaerobic reactor which are sequentially connected; the improved plug flow type anaerobic reactor is internally provided with a flow pushing device; the plug flow type anaerobic reactor is internally provided with a biogas slurry reflux device. According to the organic waste combined anaerobic digestion treatment device, the improved plug flow type anaerobic reactor is combined with the plug flow type anaerobic reactor, the biogas slurry reflux device sends partial fermentation liquor and biogas in the plug flow type anaerobic reactor to the improved plug flow type anaerobic reactor, and slurry mixing, inoculation, flow pushing and heat preservation are conducted on raw materials in the improved plug flow type anaerobic reactor; the resource is saved, and the production efficiency and the energy output ratio are increased.

Description

Technical field: [0001] The invention relates to an organic waste combined anaerobic digestion treatment device and method, belonging to the technical field of organic waste treatment. Background technique: [0002] Organic waste, also known as wet waste, refers to waste containing organic components in domestic waste. Mainly paper, fiber, bamboo wood, kitchen waste, etc. More than 50% of municipal solid waste is organic waste, and it is increasing year by year, among which waste paper and waste plastics have the fastest growth. For organic waste, methods such as recycling, incineration, composting, and sanitary landfill can be used for treatment and disposal (the recycling rate of paper can reach more than 60%), but the above-mentioned methods are for about 5-10% of waste plastics in organic waste. (Plastic waste), there are still many technical problems, and its treatment and recycling has become an international issue today. [0003] Chinese patent CN203140420U disclos...

Claims

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Application Information

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IPC IPC(8): C12M1/107C12M1/02C02F11/04C12P5/02
CPCC12M21/04C12M23/18C12M23/36C12M23/58C12M29/18C12M41/24C12M43/00C12M47/18C12P5/023Y02E50/30Y02W10/37
Inventor 岳钦艳林聪闫茂鲁唐龙翔张淑萍岳敏李倩
Owner SHANDONG UNIV