A biogas anaerobic fermentation device and fermentation method with controllable magnetic field

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: 2022-04-26
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • 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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  • A biogas anaerobic fermentation device and fermentation method with controllable magnetic field
  • A biogas anaerobic fermentation device and fermentation method with controllable magnetic field
  • A biogas anaerobic fermentation device and fermentation method with controllable magnetic field

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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 biogas anaerobic fermentation device and fermentation method with controllable magnetic field, including a gas collection system, a gas production system and a control detection system; a fermentation reactor is arranged in the gas production system, and a magnetic field control is arranged outside the fermentation reactor The device and the constant temperature water bath heating device; the fermentation reactor is connected to the gas storage tank of the gas gathering system; the magnetic field control device is connected to the magnetic field strength detection device of the control detection system, and the constant temperature water bath heating device is connected to the control detection system through the fermentation temperature controller. The modulation of magnetic field and temperature can realize the regulation of biogas anaerobic fermentation. The device is easy to use and operate, which can not only ensure the uniform heating of the reaction raw materials, but also ensure the stability of the magnetic field strength, and ensure the uniformity of the fermentation environment to the greatest extent, and can realize the magnetic field to control the biogas anaerobic fermentation, thereby improving the fermentation efficiency and gas production Rate.

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 Patents(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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