Recycling system for steam explosion of blue-green algae

Abstract

The invention relates to a recycling system for steam explosion to break wall and detoxification of blue-green algae and belongs to the field of solid waste recycling. The recycling system mainly comprises four process stages: steam explosion liquefaction, liquid fermentation, biogas pressure storage and liquid fertilizer package. By using the instant catapult steam explosion (ICSE) process, the macromolecular structure of blue-green algae cells are instantly degraded only with saturated steam, the biological activity of the blue-green algae is killed and a production approach of algal toxin is blocked off; the produced algal toxin is sheared and degraded by molecules, and the morphology of the blue-green algae is changed from solid state into liquid state; then the blue-green algae subjected to steam explosion undergo acid-catalysed hydrolysis and liquid anaerobic fermentation in a liquid fermentation reactor; the volume loading is as high as 5 to 10 kgCOD / day.m<3>. Through a series of biodegradation processes, the blue-green algae are finally transformed into biogas and liquid organic fertilizer. In the integral treatment flow of the blue-green algae, no synthetic substances areadded or no polluted emission is produced.

Description

technical field [0001] The invention relates to a recycling system for steam explosion wall breaking and detoxification of cyanobacteria, belonging to the field of solid waste recycling. Background technique [0002] Cyanobacteria are large single-celled prokaryotes with a long evolutionary history, Gram-negative, no flagella, chlorophyll a, but no chloroplast (different from eukaryotic algae), and capable of oxygenic photosynthesis. A class of organic substances that are difficult to degrade. After being polluted by elements such as nitrogen and phosphorus, the "red tide" of seawater and the "bloom" of lakes that cause eutrophication have brought serious harm to the fishery and aquaculture industry and caused the deterioration of water quality. When the cyanobacteria cells die, they will release more toxic substances into the water, making the toxic cells in the water more deadly despite fewer numbers. Cyanobacteria have a complete anti-degradation structure, especially u...

AI Technical Summary

Problems solved by technology

However, this method not only consumes a lot of energy, but also requires deep dehydration and drying of cyanobacteria with a water content of up to 95%. During the incineration process, organic matter will also produce dioxins, causing air pollution.

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