Device and method for quickly removing algal blooms in water bodies

Abstract

The invention discloses a rapid removal device for algal blooms in a water body. The rapid removal device comprises a hull, and a driving system is arranged at the tail of the hull. An algae sucking system, a dehydration system and an algae storage system which sequentially communicate are arranged on the hull, and outwards-extending algae collectors are arranged on the two sides of the hull correspondingly. Algae collecting grooves are defined by the sides, corresponding to the hull, of the algae collectors. The algae sucking system comprises algae sucking devices which are arranged on the two sides of the hull correspondingly, are adjustable in angle, and are each located on the inner side of the corresponding algae collecting groove. The algal blooms in the water body are collected andtreated through the algae sucking system, the dehydration system and the algae storage system which are arranged on the hull, in the work process, the hull can make circumferential movement around a rotating shaft on the water surface under the effects of driving force and traction, and meanwhile, length conversion of a traction rope is controlled through a motor so that the hull can pass throughall areas in the water body; and the algal bloom removal work in the narrow water body or the shallow water body can be completed through the small hull, the manpower resource is saved, and the work efficiency is better improved. The rapid removal device is applied to the field of treatment of the algal blooms in the water body.

Description

technical field [0001] The invention relates to the field of water body algal bloom control, in particular to a device and method for quickly removing water body algal bloom. Background technique [0002] Cyanobacteria are prokaryotic organisms, also known as blue-green algae or cyanobacteria; most cyanobacteria have gelatinous coats outside their cell walls, and are also called sticky algae. Among algae, cyanobacteria are the simplest and most primitive single-cell organisms, such as Microcystis, Nostoc, Anabaena, etc. Cyanobacteria are the earliest photosynthetic and oxygen-evolving organisms, and they have played a huge role in changing the earth's surface from an oxygen-free atmospheric environment to an aerobic environment. Many blue-green algae (such as Anabaena) can directly fix nitrogen in the atmosphere to improve soil fertility and increase crop production. There are also blue-green algae for people's food, such as the famous Nostoc and common nostoc (earth fungu...

AI Technical Summary

Problems solved by technology

In recent years, some algicides are most commonly used in chemical methods to remove algae, and copper sulfate is the most widely used algicide, but organic flocculants cannot be degraded, and new pollution sources are likely to be generated, and clay will cause a large amount of sludge. Moreover, algicides will also cause harm to aquatic organisms, and the use of chemicals is prone to hypoxia and poisoning; ecological methods include microbial technology, ecosystem restoration technology, etc. Microbial technology is greatly affected by water quality, while ecosystem The recovery of cyanobacteria will take a long time, and it is necessary to build an ecological space to form a food chain. This technology is stable, but it is slightly insufficient for the emergency treatment of cyanobacteria blooms; Operators and other organisms in the water body will pose a certain threat. In addition to the above methods, direct salvage and collection of cyanobacteria is the preferred means to quickly eliminate the hazards of cyanobacteria. For open waters, special cyanobacteria salvage ships are usually used to salvage, concentrate, transfer, and remove algae. The water separation station carries out dehydration treatment, but for small or shallow waters such as fish ponds, duantoubang, rivers, lake bays, etc., manual salvage is mostly used. The water content of algal pulp salvaged by this method is relatively high. In the state of algae slurry, the moisture content is still above 95%. This fishing method requires high labor intensity for operators, especially when blue-green algae outbreaks often occur in high-temperature weather, the working environment is poor, and the efficiency is low.

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