Magnetic field-controllable marsh gas anaerobic fermentation device and fermentation method

A technology of anaerobic fermentation and magnetic field regulation, which is applied in the direction of stress-stimulated microbial growth, fermentation, and special-purpose bioreactors/fermenters. Efficiency and gas production rate, energy saving effect improvement, high activity effect

Active Publication Date: 2019-03-19
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a biogas anaerobic fermentation device and fermentation method with controllable magnetic field, which fully utilizes the promotion effect of the magnetic field on anaerobic microorganisms, and not only improves the fermentation environment. , promote the degradation of the substrate and the yield of biogas, and solve the pollution problems of some difficult-to-use biogas residues and biogas slurry

Method used

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  • Magnetic field-controllable marsh gas anaerobic fermentation device and fermentation method
  • Magnetic field-controllable marsh gas anaerobic fermentation device and fermentation method
  • Magnetic field-controllable marsh gas anaerobic fermentation device and fermentation method

Examples

Experimental program
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Effect test

Embodiment 1

[0060] 1) Control the fermentation temperature: control the temperature in the constant temperature water bath heating device, so that the fermentation temperature of the fermentation reactor is controlled at 35°C;

[0061] 2) Adjust the magnetic field: adjust the equipment so that the magnetic field strength is 6mT;

[0062] 3) Using a magnetic field environment for biogas fermentation:

[0063] With 180 parts by mass of cow dung as the fermentation raw material, add 320 parts of anaerobic sludge from the urban sewage treatment plant, pump it into the feeding pipe, and then be pumped into the fermentation reactor through the air inlet feeding pipe; The gas feed pipe is connected to the nitrogen tank, and ventilated for 3 minutes to remove oxygen; it is sealed through the valve at the end of the gas collecting pipe;

[0064] 4) Fully stir the fermentation raw materials and anaerobic sludge added to the reactor, control the total solid content of anaerobic fermentation to 10%,...

Embodiment 2

[0067] 1) Control the fermentation temperature: control the temperature in the constant temperature water bath heating device, so that the fermentation temperature of the fermentation reactor is controlled at 30°C;

[0068] 2) Adjust the magnetic field: adjust the equipment so that the magnetic field strength is 15mT;

[0069] 3) Using a magnetic field environment for biogas fermentation:

[0070] 180 parts by mass of pig manure are used as fermentation raw materials, and then 320 parts of anaerobic sludge from urban sewage treatment plants are added, pumped into the feeding pipe, and then pumped into the fermentation reactor through the air inlet feeding pipe; The gas feed pipe is connected to the nitrogen tank, and ventilated for 5 minutes to remove oxygen; it is sealed through the valve at the end of the gas collecting pipe;

[0071] 4) Fully stir the fermentation feed liquid added to the reactor, control the total solid content of the anaerobic fermentation to 10%, and fe...

Embodiment 3

[0074] 1) Control the fermentation temperature: control the temperature in the constant temperature water bath heating device, so that the fermentation temperature of the fermentation reactor is controlled at 40°C;

[0075] 2) Adjust the magnetic field: adjust the equipment so that the magnetic field strength is 27mT;

[0076] 3) Using a magnetic field environment for biogas fermentation:

[0077] 180 parts by mass of chicken manure are used as fermentation raw materials, and then 320 parts of anaerobic sludge from urban sewage treatment plants are added, pumped into the feeding pipe, and then injected into the fermentation reactor through the air inlet feeding pipe; The gas feed pipe is connected to the nitrogen tank, ventilated for 4 minutes to remove oxygen; it is sealed through the valve at the end of the gas collecting pipe;

[0078] 4) Fully stir the fermentation raw materials and anaerobic sludge added to the reactor, control the total solid content of the anaerobic fe...

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Abstract

The invention discloses a magnetic field-controllable marsh gas anaerobic fermentation device and a fermentation method. The device comprises a gas collection system, a gas production system and a control detection system, wherein a fermentation reactor is arranged in the gas production system, and a magnetic field adjusting and controlling device and a constant-temperature water-bath heating device are arranged outside the fermentation reactor; the fermentation reactor is communicated to a gas storage tank of the gas collection system; and the magnetic field adjusting and controlling device is communicated to a magnetic field intensity detection device of the control detection system, the constant-temperature water-bath heating device is connected with the control detection system througha fermentation temperature control instrument, and the magnetic field and the temperature are modulated so as to realize the adjustment and control of the anaerobic fermentation of the marsh gas. Thedevice is convenient to use and operate, the uniform heating of reaction raw materials can be guaranteed, the stable magnetic field intensity can be guaranteed, the uniformity of fermentation environments can be guaranteed to the greatest extent, and the anaerobic fermentation of the marsh gas can be adjusted and controlled by virtue of the magnetic field, so that the fermentation efficiency is increased, and the gas production rate is increased.

Description

technical field [0001] The invention belongs to the technical field of anaerobic fermentation, and in particular relates to a biogas anaerobic fermentation device and a fermentation method with controllable magnetic field. Background technique [0002] In recent years, energy issues have become a restrictive issue for national development. Non-renewable energy sources such as coal, oil, and natural gas have affected the future development of the country due to excessive exploitation. Therefore, it is imminent to seek and develop new renewable energy sources. As a green energy production technology with comprehensive environmental benefits, anaerobic fermentation not only uses waste to alleviate environmental pollution, but also produces biogas, which realizes the replacement of traditional energy and is of great significance to the development of renewable and clean energy. So far, biogas has been used on a large scale in some developed countries, but my country's developme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/42C12M1/38C12M1/36C12M1/34C12M1/107C12M1/04C12M1/02C12P5/02C02F11/04
CPCC12M21/04C12M23/36C12M27/02C12M29/06C12M35/06C12M41/00C12M41/12C12M41/22C12M41/40C12M41/42C12P5/023C02F11/04Y02E50/30
Inventor 云斯宁贾波张永伟
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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