Method and device for producing firedamp

Abstract

The present invention discloses marsh gas producing process and apparatus, and belongs to the field of environment engineering and energy source technology. The technological scheme includes setting aerobically fermented compost around the anaerobic fermenter. The marsh gas producing apparatus includes one marsh gas tank, one outer cover with space for holding the aerobically fermented compost between the outer wall of the marsh gas tank and the outer cover, one first submersible pump with one jet in the upper part inside the marsh gas tank, one compost filter below the compost, and one second submersible pump with outlet inside the marsh gas tank below the compost filter. The present invention can ensure the temperature for anaerobic fermentation in winter and the organic material supply, so as to produce marsh gas and fertilizer in high yield and protect environment.

Description

technical field [0001] The invention relates to a biogas production method and device, in particular to a method and device for aerobic composting and anaerobic fermentation to treat organic waste, and belongs to the fields of environmental engineering and energy. Background technique [0002] In recent years, on the basis of the extensive application of hydraulic household biogas digesters, a series of new pond types and new processes have been continuously developed in my country, and large-scale biogas fermentation reactors including anaerobic digestion tanks have been formed. At present, the popular household biogas digesters in the world are mainly divided into two types: hydraulic pressure type and floating cover type, and many variants evolved on this basis, as well as plastic bag biogas digesters with a small number of promotions. These biogas digesters generally have the problem that the fermentation temperature is greatly affected by the outside world, and the gas ...

AI Technical Summary

Problems solved by technology

These biogas digesters generally have the problem that the fermentation temperature is greatly affected by the outside world, and the gas production varies greatly.

In my country, the temperature in the north is too low in winter, which will lead to the inability to produce gas. Even in the south, the gas production rate of biogas digesters is very low at normal temperature in winter.

This is an important reason why biogas digesters cannot be widely promoted at present.

However, biogas digesters using temperature control equipment (biogas heating, electric heating, etc.) cannot be widely promoted and applied due to their high cost.

On the other hand, in the vast rural areas, the massive accumulation of waste and livestock and poultry manure has caused environmental pressure

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