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Biogas anaerobic fermentation device and use method thereof

An anaerobic fermentation and biogas technology, applied in the direction of sterilization methods, biochemical equipment and methods, gas production bioreactors, etc., can solve the problems of easy air leakage and difficulty in timely detection, and achieve airtightness and assembly Simple, low-cost results

Inactive Publication Date: 2021-10-19
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has good sealing and is convenient for quick inspection of the airtightness of the fermentation system, overcoming the problems that traditional devices are easy to leak and difficult to find in time

Method used

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  • Biogas anaerobic fermentation device and use method thereof
  • Biogas anaerobic fermentation device and use method thereof
  • Biogas anaerobic fermentation device and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Using the biogas anaerobic fermentation device of the present invention, the inoculated anaerobic bottom sludge and fermentation substrate are poured into sealed bags through the outlet respectively, the ratio of material to sludge is 1:2, and the anaerobic bottom sludge is taken from the anaerobic tower of the municipal sewage plant. The material is cellulose powder, press the sealed bag body to discharge the air in the bag, use a hose to connect the air collection bag, switch valve / water stop clip / Robert clip, close the switch valve / water stop clip / Robert clip, after 3-4 hours, Gas is obviously produced, open the switch valve / water stop clip / Robert clip, and the sealed bag is connected with the air collection bag. When detecting the amount of methane produced, press the sealed bag to collect all the gas into the gas collection bag, use the biogas composition analyzer to detect the gas composition in the bag, and use the drainage method to measure the volume of biogas p...

Embodiment 2

[0018] Using the biogas anaerobic fermentation device of the present invention, two groups of experiments were respectively carried out, the no gas stripping group (BS-O) and the nitrogen stripping group (BS, nitrogen stripping for 5 minutes), and each group was repeated three times. The rest of the operations are the same. Pour the inoculated anaerobic bottom sludge and fermentation substrate into sealed bags through the outlet respectively. The ratio of material to sludge is 1:2. The anaerobic bottom sludge is taken from the anaerobic tower of the municipal sewage plant. The substrate is straw, which is crushed to about 0.5mm . Press the sealed bag body to discharge the air in the bag, use a hose to connect the air collection bag, switch valve / water stop clip / Robert clip, close the switch valve / water stop clip / Robert clip, after 3-4 hours, obviously produce gas, turn on the switch Valve / water stop clip / Robert clip, the sealed bag is connected with the air collection bag. W...

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Abstract

The invention discloses a biogas anaerobic fermentation device and a use method thereof. The device is composed of a sealing bag, a hose, a switch valve / water stop clamp / Robert clamp and a gas collection bag. The method is used for batch type, continuous batch type or continuous type fermentation. Excess air is squeezed out by pressing the sealing bag, nitrogen and other air stripping operations are omitted, and the influence of air stripping gas on methane component and concentration measurement is effectively avoided; when the biogas is collected, the gas in the bag is discharged into the gas collecting bag by pressing the sealing bag, correction and calculation are not needed, the actual gas production rate can be obtained by measuring the gas in the gas collecting bag, and the accuracy of gas production measurement is improved. The sealing bag with the variable volume is convenient for quickly checking the air tightness of the fermentation system, and overcomes the problems that the traditional device easily leaks air and is difficult to find in time. Materials such as resin are used, and cost is low. Different from a traditional anaerobic fermentation device which utilizes materials such as glass bottles, rubber plugs, glass injectors, punchers and glass guide pipes, the device is simple, convenient, safe and labor-saving.

Description

technical field [0001] The invention belongs to the field of anaerobic fermentation, and in particular relates to an anaerobic fermentation device for biogas and a use method thereof. Background technique [0002] Biogas anaerobic fermentation technology is the main technical means to treat organic solid waste, sewage / waste water, and waste resources of livestock and poultry manure. Research on the optimization of biogas anaerobic fermentation technology and mechanism exploration has increased year by year, and these studies often require experiments. Chamber scale begins. In the laboratory, researchers mainly use solid glass bottles with fixed volumes such as suction filtration bottles and serum bottles. Before anaerobic fermentation, nitrogen or a mixed gas of nitrogen and carbon dioxide should be used to blow off the reaction bottle and replace the space above the bottle. At the same time, the dissolved oxygen in the fermentation liquid in the bottle is reduced, the pois...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/107C02F11/04
CPCC12M21/04C12M23/14C12M23/36C12M37/04C02F11/04
Inventor 华彬彬刘金鹏陈玉龙鞠美庭李维尊赵莹付学颖王艳双
Owner NANKAI UNIV