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Preparation system for marsh gas prepared from domestic garbage and marsh gas preparation method thereof

A domestic waste and preparation system technology, applied in biochemical equipment and methods, methods for supporting/immobilizing microorganisms, garbage storage, etc., can solve problems such as affecting gas production rate, complex structure, and uncertain pH

Inactive Publication Date: 2018-06-01
苏州浩长空环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology has the following problems: 1. Due to the variety of domestic waste, the pH cannot be determined. Second, biogas fermentation generally needs to maintain the pH at 17 to 18.15. Direct fermentation without pretreatment will affect the gas production rate; 2. Garbage collection and storage 3. Domestic waste often has a high water content, which affects the crushing effect, and the concentration of the permeate is high, making it difficult to crush when crushing. And it is easy to block the machine and the crushing is insufficient; 4. It is difficult for anaerobic fermentation equipment to control the pH value of the reaction area during the fermentation process, resulting in the rate of anaerobic fermentation not always being kept at the best state; Hydrogen also contains a large amount of dust. Dust entering the desulfurization and dehydration equipment will easily damage the internal parts of the machine and shorten the service life of the machine. Most of the existing biogas biological dehydration and desulfurization equipment are equipped with dust removal devices, but the existing dust removal devices are simple in structure design , the effect of filtering dust is poor, and the filtration of fine dust is mostly incomplete; 6. In the use of reagents, the pressure of the biogas pipeline is insufficient, the combustion is not sufficient, the use is inconvenient, and it is difficult to meet the needs of life and production; Biogas resources, such as domestic waste, crop straw, etc., but most of the existing domestic waste biogas purification treatment devices adopt a fixed structure, which is complex in structure and high in production costs, and is only suitable for small and medium-sized domestic waste treatment plants for biogas purification operations. It is suitable for biogas purification in rural areas; 8. The preservation tank is heavy after being inflated, and there are no rollers to make it difficult to carry. At the same time, there is no fixed plate on the side of the storage tank, and it is easy to cause rolling when lying down

Method used

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  • Preparation system for marsh gas prepared from domestic garbage and marsh gas preparation method thereof
  • Preparation system for marsh gas prepared from domestic garbage and marsh gas preparation method thereof
  • Preparation system for marsh gas prepared from domestic garbage and marsh gas preparation method thereof

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] see Figure 1-10The present invention provides the following technical solutions: a biogas preparation system from domestic waste, including a pretreatment device 1, a storage and transportation device 2, a crushing device 3, a fermentation device 4, a storage device 5, a desulfurization and dehydration device 6, and a pressurization treatment device 7 , Purification treatment device 8, preservation tank 9, pretreatment device 1 comprises lifting pump 1...

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PUM

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Abstract

The invention discloses a preparation system for marsh gas prepared from domestic garbage. The preparation system comprises a pretreatment device, a storage and conveying device, a crushing device, afermentation device, a storage device, a desulfurization and dewatering device, a pressurization treatment device, a purification treatment device and a storage tank, wherein the pretreatment device is integrally sealed to create an anoxic environment, which is facilitated to the activity of anaerobic bacteria; before the marsh gas preparation, the pH value of the garbage is regulated in advance;the resource degree of the garbage is greatly improved; the equipment is simple; the treatment is thorough; the cost is low; the investment return period is short; the energy utilization rate is high;garbage is used for preparing the marsh gas, so that waste materials are utilized; the life fuel and electric charge can be saved; wide application prospects are realized; contribution is made for environment protection; the storage device is provided with a U-shaped pipe and a sterilization liquid box, so that the marsh gas enters sterilization liquid through the U-shaped pipe; then, the gas ascends, so that toxic and harmful gas mixed in the marsh gas is merged in the sterilization liquid; meanwhile, influence on the use of other devices due to the backflow of the sterilization liquid is avoided; clean and sanitary marsh gas is provided.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and in particular relates to a biogas preparation system from domestic garbage. Background technique [0002] my country is the country with the highest output of urban waste in the world. The annual output of urban domestic waste has exceeded 1.114 billion tons, accounting for more than 11 / 14 of the world's total, and it is still growing at a rate of 18-110% every year. The increasingly serious pollution of domestic waste to the urban environment is bound to become a major social problem that the government attaches great importance to and solves. With the changes in urban environmental sanitation and management methods, the management of urban domestic waste in my country is also developing from simple end treatment to source treatment and comprehensive management. In recent years, through national appropriation and local government financing, many landfills have been built in variou...

Claims

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Application Information

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IPC IPC(8): C12M1/36C12M1/34C12M1/12C12M1/107C12M1/02B65F3/00
CPCB65F3/00B65F2003/006C12M21/04C12M23/34C12M23/36C12M23/48C12M27/02C12M41/26C12M45/02C12M45/04C12M45/06C12M45/20C12M47/18Y02E50/30Y02W30/10
Inventor 张益
Owner 苏州浩长空环保科技有限公司
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