Method for controlling algal blooms by using submersible type zooplankton incubator

Abstract

The invention discloses a method for controlling algal blooms by using a submersible type zooplankton incubator. The submersible type zooplankton incubator is a device or structural body composed of abuoyancy frame, a bottom net, a cover net, a biological carrier cage, a reticular biological carrier, an aeration pipe, an air conveying pipe, an aeration fan, aquatic plants, a fixed anchor and a cable. A microbial agent and an algae-eating insect preparation sold in the market serve as a means to drive or strengthen water body pollution control and algal bloom control; through a reticular structure of the incubator and the natural swinging function of the incubator in a water body, planktonic algaes and organic debris in the water body are collected or absorbed; through a microbial membraneand the zoogloea growth, the organic matter is degraded and algal cells are destroyed; through the cultivation and incubation of zooplankton, algae can be eaten and the algal growth is controlled; incremental zooplankton and microbial species in the incubator move outside the incubator under the action of natural swinging of the incubator and biological foraging, and such sustained efficacy is achieved that the scope of water treatment is expanded, the water ecosystem is repaired.

Description

technical field [0001] The invention relates to the field of water environment and water ecological management, in particular to a method for controlling algal blooms in a submersible zooplankton incubator. Background technique [0002] The control of water eutrophication and algae bloom is a worldwide problem. The current control and governance technologies include: ① Biological manipulation technology. Including: classic and non-classical biological manipulation technology, and large zooplankton (algae-eating insect) manipulation technology, etc.; ② aquatic plant restoration technology. Including: direct restoration of submerged plants, emergent plants, floating plants, biological floating islands, ecological floating bed technology, etc.; Salvage, physical aeration, and physical and chemical agent restoration and treatment technologies, etc.; ④ Microbial carriers, biofilms, and the integration or compounding of microbial carriers, microbial agents, biofilms, physical aer...

AI Technical Summary

Problems solved by technology

These two technical methods or devices for cultivating or protecting zooplankton to restore water ecology and water environment have the following main disadvantages or defects: ① No consideration of water temperature, air temperature, light, hydrology, water quality and pollution in the in-situ water ecosystem Random changes in factors such as species, as well as changes in the seasons of the year, etc., the changes in algae species, quantity, dominant species and density, diversity, etc. are "dramatic" or huge, and zooplankton have great influence on this kind of survival and food. It is often impossible to adapt to drastic changes in the environment; ② some algae are toxic to the zooplankton that feed on it, for example, some strains of Microcystis can increase the mortality rate of zooplankton sharply and make them almost unable to reproduce; ③In the aquatic ecosystems of lakes and reservoirs, the feeding pressure of filter-feeding fish on zooplankton is huge. Once the planktonic algae and organic debris (bacterial flora) in the water body are reduced, zooplankton will become their only feeding objects

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