Device and method for processing large-area algal blooms in natural water bodies through combined use of floatation boat and residue scraping boat

Abstract

The invention belongs to the technical field of environmental protection, and particularly relates to a device and a method for processing large-area algal blooms in natural water bodies through the combined use of a floatation boat and a residue scraping boat. The floatation boat consists of a boat hull and a rear floatation component which comprises a micro air bubble generating device and a micro air bubble releasing device. The residue scraping boat consists of a boat hull and a front residue scraping component which comprises a residue collecting arm, a residue scraping tipping bucket and an algal residue trough. The method comprises the following basic processes for algal removal that: the floatation boat moves forward, the floatation micro air bubble releasing device positioned on the backside of the boat hull starts to release micro air bubbles, and algal cells and the highly dispersed micro air bubbles in the natural water bodies are adhered to each other so that the algal cells and the micro air bubbles are gathered with each other and float to the water surface under the action of buoyancy; and the residue scrapping boat following up the floatation boat in the driving process uses the residue collecting arm to intensively collect the algal residues suspended up in a water surface range and uses a residue collecting hopper to collect the algal residues into the algal residue trough so as to remove the algae in water. The device and the method have the advantages of convenient construction, high efficiency, low cost and simple operation.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a treatment device and a treatment method for large-area algal blooms in natural water bodies through the combined use of an air floatation ship and a slag scraping ship. Background technique [0002] Eutrophication of lake water and large-scale algal blooms are one of the main water environment problems facing our country. Many lakes in my country, such as Taihu Lake, Dianchi Lake, Chaohu Lake and Hongze Lake, have serious water eutrophication pollution, and blue-green algae outbreaks have occurred to varying degrees. Algal blooms not only affect the water body landscape, but also seriously damage the water body ecological environment. If the algae bloom occurs in the water body of the water source, it will endanger the operation of the water plant and the quality and safety of the water supply, and algae toxins can also indirectly affect human heal...

AI Technical Summary

Problems solved by technology

However, the current control measures have certain defects: the efficiency of mechanical algae removal is low, and magnetic algae removal is difficult to apply on a large scale; chemical methods are generally costly and have secondary pollution; make quick processing

However, the application of air flotation technology in the treatment of large-scale algae outbreaks has not yet been practically applied. If it can be well combined with the characteristics of high efficiency and rapidity of air flotation technology, this technology may become a new trend in the treatment of cyanobacteria outbreaks.

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