Automatic anaerobic fermentation device

Abstract

The invention discloses an automatic anaerobic fermentation device which comprises a reactor and a gas measuring and recording system, wherein the reactor is a conical flask of which the bottom is provided with a plurality of movable spoilers; the conical flask is provided with a bottle cap for sealing; the gas measuring and recording system comprises a gas storage chamber which is communicated with the inside of the conical flask through an exhaust pipeline which is provided with a one-way valve and penetrates through the bottle cap; a methane sensor is arranged in the gas storage chamber; an electronic flowmeter is connected to the gas storage chamber; both the methane sensor and the gas storage chamber are connected with a PLC (Programmable Logic Controller). According to the automatic anaerobic fermentation device disclosed by the invention, the problem that the materials are positioned in a solid-liquid layering state in the shaking process of the reactor can be effectively solved, and automatic recording of the concentration of methane gas and the volume of total gases is realized; the automatic anaerobic fermentation device can be arranged in a constant temperature shaking table for anaerobic fermentation tests, and is suitable for the research on batch anaerobic fermentation tests in a laboratory; the automatic anaerobic fermentation device has the advantages of small size, simpleness in connection, complete functions and convenience in use.

Description

Technical field [0001] The invention belongs to the technical field of biological experiment equipment, and relates to a fermentation device, in particular to an automatic anaerobic fermentation device. Background technique [0002] Anaerobic fermentation means that microorganisms decompose organic matter to produce CH under anaerobic conditions 4 And CO 2 In the process of waiting for gas, anaerobic fermentation products (biogas slurry and biogas residue) are also a kind of high-quality organic fertilizer, which is an important way for organic waste to be harmless and resourced. With the development of intensive aquaculture, livestock manure from large-scale farms has become the main source of livestock manure. However, there are many problems such as antibiotics and heavy metals in the wastes of large-scale farms. Research on the impact of antibiotics and heavy metals and other pollutants on the anaerobic fermentation process is of great significance for the harmless treatment ...

AI Technical Summary

Problems solved by technology

At present, most of the anaerobic fermentation devices commonly used in the laboratory are large in size, complex in device connection, prone to air leakage and other problems, and need to manually record the gas production every day. The methane production needs to be collected every day and measured by gas chromatography, which consumes a lot of manpower and time.

The equipment with a stirring device has a complex structure and is expensive, while the equipment without a stirring device has the problem of solid-liquid stratification of the material, which is not conducive to the anaerobic fermentation process of the material and the generation of gas, and the degree of fermentation of the material between different repetitions of the same treatment Big difference, poor repeatability

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