A device and method for improving anaerobic fermentation efficiency and simultaneous in-situ desulfurization

Abstract

The invention belongs to the technical field of anaerobic fermentation, and specifically relates to a device for improving anaerobic fermentation efficiency and synchronous in-situ desulfurization, comprising an anaerobic fermentation tank, immobilized filler (1), hydrogen sulfide concentration sensor (2), and ORP detection probe ( 3), a flow controllable gas pump (4), a gas flow meter (5) and a PID controller (6); an immobilized filler (1) is arranged above the liquid level of the fermentation liquid inside the anaerobic fermentation tank, and a hydrogen sulfide concentration sensor (2) set on the top of the anaerobic fermentation tank, the ORP detection probe (3) is set in the anaerobic fermentation tank, the flow controllable gas pump (4) is set outside the anaerobic fermentation tank, through the flow controllable gas pump ( 4) Air is introduced into the liquid surface in the anaerobic fermentation tank and the immobilized filler (1); the gas flow meter (5) is arranged outside the anaerobic fermentation tank, and the PID controller (6) and the hydrogen sulfide concentration sensor (2) , a gas flow meter (5), an ORP detection probe (3) and a flow controllable gas pump (4) are electrically connected.

Description

technical field [0001] The invention belongs to the technical field of anaerobic fermentation, and in particular relates to a device and method for improving fermentation efficiency and synchronously desulfurizing methane in situ. Background technique [0002] With the continuous improvement of people's living standards and material needs in our country, people's demand for livestock, poultry, eggs and milk has further increased. Followed by the production of a large number of livestock and poultry manure, livestock and poultry manure is the main cause of agricultural non-point source pollution. At present, the main method of treating livestock and poultry wastewater and agricultural waste in my country is anaerobic fermentation. The hydrolysis process in anaerobic fermentation is the key unit that determines the efficiency of the overall fermentation process. The existing two-stage fermentation project is expensive, and the operation The maintenance cost is high; at the sam...

AI Technical Summary

Problems solved by technology

At present, the main method of treating livestock and poultry wastewater and agricultural waste in my country is anaerobic fermentation. The hydrolysis process in anaerobic fermentation is the key unit that determines the efficiency of the overall fermentation process. The existing two-stage fermentation project is expensive, and the operation High maintenance cost; at the same time, the protein in livestock and poultry manure will produce hydrogen sulfide when degraded, hydrogen sulfide will cause serious harm to the human body, and the undesulfurized gas will corrode the transportation pipeline during transportation

In addition, hydrogen sulfide or sulfide ions can poison and inhibit methanogens during the fermentation process, reduce the treatment efficiency of anaerobic fermentation, and bring great obstacles to waste treatment and further utilization of biogas.

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