Device for treating eutrophication water blue algae

Abstract

The invention discloses a device for treating eutrophication water blue algae. In the device, an ultrasonic alga-removing device is fixed on the inner wall of a reaction tank; an alga-collecting pipe is connected to a side upper part of the reaction tank with a height corresponding to a water surface; a booster pump is arranged outside the other side of the reaction tank; the input end of the booster pump is communicated with the reaction tank through a pipeline, while the output end is communicated with a hydraulic cavitation jet device through the pipeline and a flowmeter; one end of the hydraulic cavitation jet device is fixedly connected with the reaction tank through a flange and the end port is a jet inlet communicated with the reaction tank; the other end of the hydraulic cavitation jet device is communicated with a starting end of a return pipe and the end port is a jet outlet; two reducing pipes which are symmetrically arranged and reduced towards the middle are communicated with each other between the jet inlet and the jet outlet; the middle reducing part forms a throat pipe; and the throat pipe is communicated with one end of a pressurizing pipe. An ultrasonic alga-removing process and a hydraulic cavitation jet process are combined to be implemented in one device, so the device has good effects of improving the quality of bottom materials, adjusting a water temperature layer and supplying oxygen by microorganisms and fulfills the aim of removing the algae.

Description

technical field [0001] The invention relates to a water body treatment device, in particular to a device for treating cyanobacteria in water body eutrophication. Background technique [0002] The treatment of algae in eutrophic water mostly adopts conventional treatment processes such as chemical agent method, air flotation method or direct filtration algae removal, which requires a large area, the efficiency of algae removal is not high, and the quality of effluent water is unstable, especially when chemical agents are used. When the method is used to remove algae, it will cause toxicity to other organisms other than algae, and it is easy to cause secondary pollution. [0003] Due to the particularity of the cell structure of algae in eutrophic water bodies, that is, the characteristic of air cells in the cells satisfies a mechanism of ultrasonic algae suppression and algae removal, so the ultrasonic method is used to treat algae, and the air cells in algae cells are used a...

AI Technical Summary

Problems solved by technology

The patent number is 200710009856.5, the publication number is CN101182054, and the name is "a method of removing algae by ultrasonic waves". ~1MHz, ultrasonic power 0~200W, 5~10 minutes each time, ultrasonic once every 5 days. Although this method has high application value for algae bloom control, it cannot overcome the low efficiency of ultrasonic algae removal and easy The defects of secondary pollution, high economic cost, and low long-term water quality compliance rate of algae water

[0004] When using the hydraulic cavitation jet process to remove algae, a pulse jet generator is used, but due to the structural characteristics of the jet nozzle of the pulse jet generator, the whole device has defects such as complex structure and high economic cost.

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