Continuous wet-dry two-stage dynamic anaerobic fermentation device

Abstract

The invention discloses a continuous wet-dry two-stage dynamic anaerobic fermentation device. The device comprises a mixing and regulating tank, a wet-type anaerobic fermentation device, a dry-type anaerobic fermentation device and a fermentation residue dehydrating and discharging device which are sequentially connected in series through a pipeline, wherein a V-shaped filtrate tank with porous filter plates as a wall face is arranged at the bottom of the dry-type anaerobic fermentation device, the upper portion of the dry-type anaerobic fermentation device is a dry-type anaerobic fermentation zone, the lower portion of the dry-type anaerobic fermentation device is a filtrate bin, methane liquid separated from the filtrate bin returns to the mixing and regulating tank through a pipe, and tank bottom residues of the V-shaped filtrate tank are discharged through the fermentation residue dehydrating and discharging device. The device improves the reactor treatment capability and the volume gas generating rate, the feeding and discharging problems of a high-solid or dry-type reactor are solved, methane liquid zero release is achieved, methane liquid backflow and sprinkling operation is not needed, the water content of fermentation residues can be reduced to 65%-75% through fermentation residue dehydration, follow-up link utilization is promoted, and engineering operating operation links are greatly simplified.

Description

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AI Technical Summary

Benefits of technology

This new apparatus described in this patented technology allows for efficient treatment of many types of waste material such as manures, sewage, etc., while also improving their volume and producing speed at low cost compared to previous methods that were previously used. It has two main technical feats: it's designed specifically for handling different kinds of solid/liquor mixtures (MSM) instead of just water; it removes excessive liquids during reaction processes, reducing equipment requirements and minimizing environmental concerns associated therewith. Additionally, its novel design prevents contamination issues caused by bacteria growth due to constant circulating fluidized bed systems. Overall, these improvements lead to improved efficiency and reduced operating expenses over existing treatments.

Problems solved by technology

The technical problem addressed by these inventories relating to improving the efficient operation and productivity of ananodiumferrite type acid catalyst(ANFO)-based anaeroxygenase (Anammox), particularly when producing highly concentrations of nitrocompounds like ammonia during diacastration operations. Existing methods require multiple steps involving different types of apparatuses, leading to increased costs associated with handling heavy metals containing materials.

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