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Biogas fermentation stirring and biogas desulfurization method

A biogas fermentation and biogas desulfurization technology, applied in biochemical equipment and methods, bioreactor/fermenter combination, specific-purpose bioreactor/fermenter, etc., can solve the problems of poor desulfurization effect, easy blockage, low investment, etc. problem, to achieve the effect of good stirring effect, less equipment in the tank, and less investment

Pending Publication Date: 2019-12-10
BIOGAS SCI RES INST MIN OF AGRI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In-pipe biological desulfurization has low investment and poor desulfurization effect; out-of-tank biological desulfurization has good effect, but high investment and easy to block

Method used

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Embodiment Construction

[0027] A method for biogas fermentation stirring and biogas desulfurization, using a blower 2 to blow compressed air into the biogas fermentation reactor 1 through the gas distributor 4 at the bottom of the biogas fermentation reactor 1, and using the rising effect of the air to cool the feed liquid in the biogas fermentation reactor 1 Perform mixing and stirring, control the stirring time and frequency, the air escapes from the fermentation feed liquid and enters the head space of biogas fermentation reactor 1, and the domesticated microorganisms in the head space of biogas fermentation reactor 1 use the oxygen in the air to oxidize hydrogen sulfide to generate elemental sulfur or sulfuric acid Salt.

[0028] In the present invention, the blower 2 and the air pipe 3 are placed outside the biogas fermentation reactor 1 , and the blower 2 is connected to the air distributor 4 at the bottom of the biogas fermentation reactor 1 through the air pipe 3 .

[0029] In the present inv...

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Abstract

The invention discloses a biogas fermentation stirring and biogas desulfurization method. The biogas fermentation stirring and biogas desulfurization method comprises the following steps: compressingair through an air blower and blowing the air into a biogas fermentation reactor through an air distributor on the bottom of the biogas fermentation reactor; mixing and stirring feed liquid in the biogas fermentation reactor by an air rising effect and controlling stirring time and frequency; and after air escapes from the fermented feed liquid, enabling the air to enter space of the top of the biogas fermentation reactor; and generating elemental sulfur or sulfate from microorganisms which are cultured and domesticated in the space of the top of the biogas fermentation reactor by oxidizing hydrogen sulfide through oxygen in the air. The air is controllably pumped into the biogas fermentation reactor, an explosion-proof motor is not needed, the method is not affected by biogas production,other stirring modes are not needed in an assisted manner, and moreover, a desulfurization function is further fulfilled.

Description

technical field [0001] The invention relates to a method for stirring and biogas desulfurization in a biogas fermentation process, which belongs to the field of environmental engineering waste treatment and biogas engineering, and is mainly used for anaerobic treatment and biogas utilization of organic waste and high-concentration organic wastewater. Background technique [0002] Organic waste and high-concentration organic wastewater are not only pollutants, but also potential resources and energy sources, which are usually treated and utilized by anaerobic digestion (biogas fermentation). For alcohol wastewater with high suspended solid content, food processing wastewater, livestock and poultry breeding manure, aerobic residual sludge, etc., the complete mixed anaerobic reactor (CSTR) is mainly used for anaerobic digestion and biogas production. The successful operation experience of biogas projects for anaerobic treatment of highly suspended solid organic waste (wastewate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/04C12M1/02C12M1/107
CPCC12M21/04C12M29/06C12M27/02
Inventor 邓良伟
Owner BIOGAS SCI RES INST MIN OF AGRI
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