Non-failure biogas fermentation tank and biogas liquefied fuel and bio-compound fertilizer producing method

Abstract

Disclosed is a non-failure biogas fermentation tank and biogas liquefied fuel and bio-compound fertilizer producing method, wherein the sewage gas and related resources produced in pig farms are utilized. A catalyst auxiliary solvent and a special-purpose equipment are employed for liquefying the sewage gas into alkane liquefied gas with methane as the main constituent, and a three-stage microbiological biochemical enzyme series modulation method is employed for finely processing the solid methane.

Description

Technical field [0001] The invention relates to a group of optimized and improved designs for a large-scale production facility—biogas fermentation tank, which is necessary for the harmless treatment of "three wastes" in large and medium-scale pig farms, and to build a long-term normal operation and trouble-free biogas fermentation tank And make full use of the large amount of biogas and marsh resources associated with the harmless downstream of the "three wastes", extend the pig raising industry chain, develop a circular economy, deeply process the valuable resources of biogas and marsh, and produce "biogas liquefaction new fuel" and high-quality "biological ( New technology in the production method of "green) compound fertilizer". Background technique [0002] 1. At present, the "stereotyped" biogas fermentation tanks that have been built or are currently under construction in urban and rural areas, especially large and medium-sized biogas fermentation tanks, still have im...

AI Technical Summary

Problems solved by technology

The more prominent problems are: "skinning" failure occurs in the operation of the biogas pond, which cannot be dealt with, seriously affects the normal feeding, the gas production capacity decreases, and even production has to be stopped

[0003] 2. Pig farming has been degraded as an industry that pollutes the environment structurally. Many pig farms in urban and rural areas currently use extensive production methods, and most of them cannot effectively dispose of human and animal feces, sewage, and coating, which are produced in large quantities every day. Dead piglets, dead old sows, dead mice and other perishable organic wastes have caused serious pollution to the local production and living ecological environment

With such a large amount of biogas, the pig farm itself is used for lighting, living fuel, etc., only a small part (about a few hundred cubic meters) is consumed. It bubbles and runs to the sky, and there are so many swamps that cannot be processed, it is still a very low-value farmyard manure

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