Industrial vinegar residue waste solid anaerobic fermentation methanogenesis method

Abstract

The invention provides an industrial vinegar residue waste solid anaerobic fermentation methanogenesis method and belongs to the field of vinegar residue reuse. The method comprises the steps of 1, drying vinegar residues at the indoor temperature, putting part of dry vinegar residues into a fixed bed pyrolysis carbonization furnace, pyrolyzing at the temperature of 400-500 DEG C, and preparing vinegar residue charcoal; 2, using the prepared charcoal as an additive and adding the charcoal to the vinegar residues, and carrying out solid anaerobic fermentation and producing methane at the temperature of 37 DEG C or so. Compared with the prior art, according to the industrial vinegar residue waste solid anaerobic fermentation methanogenesis method, row materials themselves are converted to an valid, pollution-free and side-effect-free charcoal additive and is combined with solid anaerobic fermentation, in addition to the vinegar residues, no other components enter, the method has the advantages of less water consumption, free of biogas slurry and large volume gas production of solid fermentation, on this basis, the efficiency of anaerobic fermentation gas production is further improved, and a new thought is provided for effective treatment and resource utilization on industrial and agricultural waste.

Description

technical field [0001] The invention belongs to the technical field of vinegar residue reuse, in particular to a method for producing methane by solid-state anaerobic fermentation of industrial vinegar residue waste. Background technique [0002] As a by-product of the vinegar industry, vinegar residue has a huge annual output of about 3 million tons. Because vinegar slag has certain acidity and corrosiveness, its random disposal will cause a certain degree of environmental hazards. Vinegar residue is also a raw material rich in lignocellulose, which is mainly composed of bran and rice husk biomass materials. Traditional treatment methods such as landfill and incineration will not only cause a certain degree of secondary pollution to the environment, but also a waste of resources. The anaerobic fermentation technology is a low-cost, non-polluting method for converting biomass waste into clean and renewable energy. This method can effectively solve the environmental hazards...

AI Technical Summary

Problems solved by technology

[0003] At present, the solid-state anaerobic digestion process has received more and more attention, but the solid-state fermentation process of vinegar residue has not been well developed and utilized.

This is due to the fact that solid-state fermentation technology still has many shortcomings, such as long reaction time, large demand for inoculum, etc.; and no suitable additives that can effectively improve the efficiency of solid-state anaerobic fermentation have been developed and utilized.

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