Method for electrochemical detoxification and deep dehydration of blue-green algae liquid

Abstract

The invention discloses a method for electrochemical detoxification and deep dehydration of a blue-green algae liquid. The method comprises the following steps: the blue-green algae liquid is put intoa primary sedimentation tank for preliminary standing and layering and flows into an electrochemical reactor; the cell voltage of the electrochemical reactor and the rotating speed of a stirrer are set, the electrochemical reactor and the stirring function of the electrochemical reactor are started, blue algae cells are subjected to wall breaking dehydration under the action of an electric fieldand mechanical stirring of an anode, algal toxins released by blue-green algae are continuously oxidized and degraded by hydroxyl radicals generated in the electrochemical reactor, and the processes of wall breaking dehydration and toxin removal of the blue-green algae are completed; the blue-green algae liquid flows into a high-pressure filter press device for deep dehydration, and finally blue algae mud cakes are obtained. According to the method, efficient dehydration of the blue-green algae and efficient degradation of the algal toxins are realized, the method is simple and controllable inoperation, the problems of algal toxin degradation, deep dehydration and inhibition of secondary pollution in the dehydration process in the blue-green algae recycling process are effectively solved,no chemical substances are added, and a solid foundation is laid for deep recycling of the blue-green algae.

Description

technical field [0001] The invention belongs to the technical field of detoxification, reduction and resource utilization of cyanobacteria, and in particular relates to a method for electrochemical detoxification and deep dehydration of cyanobacteria liquid. Background technique [0002] Eutrophication of rivers and lakes and algal blooms are serious water environmental problems currently facing our country. In view of the characteristics of cyanobacteria outbreaks in eutrophic water bodies at present, simple manual or mechanical operation boats are used in various places to salvage cyanobacteria from water bodies. Salvaging cyanobacteria plays an important role in reducing the biomass of cyanobacteria populations, population dominance, and inhibiting population reproduction. At the same time, it brings out a large amount of nitrogen and phosphorus nutrients in the water body, which is helpful for reducing local disasters, reducing nutrient accumulation in the lake, and impr...

AI Technical Summary

Problems solved by technology

[0012] Purpose of the invention: Aiming at the problems and deficiencies in the prior art, the present invention provides a method for electrochemical detoxification and deep dehydration of cyanobacteria liquid, through pre-dehydration of cyanobacteria, electrochemical cyanobacteria wall breaking and algal toxin degradation, high-pressure filtration Deep dehydration realizes efficient dehydration of cyanobacteria and efficient degradation of algae toxins. The method is simple and the operation is controllable. It effectively solves the problems of algae toxin degradation, deep dehydration and inhibition of secondary pollution in the dehydration process of cyanobacteria resources, and does not add any Chemical substances have laid a solid foundation for the deep resource utilization of cyanobacteria, and have significant environmental benefits and practical value

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