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A kind of method for suppressing the bloom of Cyanophyta Microcystis

A technology for cyanobacterial blooms and microcystis, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., and can solve problems such as harming the environment

Inactive Publication Date: 2016-08-17
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by this invention is to provide a kind of method for inhibiting the bloom of Microcystis cyanophyta, solve the limitation and scope of each existing method, and some even can endanger the defect of the environment, which is easy in natural water bodies at present. Effective suppression of emerging cyanobacterial blooms provides good

Method used

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  • A kind of method for suppressing the bloom of Cyanophyta Microcystis
  • A kind of method for suppressing the bloom of Cyanophyta Microcystis
  • A kind of method for suppressing the bloom of Cyanophyta Microcystis

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Embodiment 1

[0025] Collect the water body where the cyanobacteria blooms are generated, monitor the nitrogen concentration of the water body, and dilute with water so that the total nitrogen concentration of the water body does not exceed 20mg / L; then continue to aerate the water body where the cyanobacterial blooms occur. Maintain the dissolved oxygen concentration in the water body; while aeration, add glucose, and the added concentration adopts the mass ratio of the added carbon element concentration to the nitrogen element concentration of the total nitrogen concentration of the water body at 10:1 (ie C:N is about 10:1); Adding Na while adding carbon source to water 2 SiO 3 , And make the concentration of silicon element 10-20mg / L.

[0026] After the 3rd day, it can be found that the size of the cyanobacteria bloom particles in the water body becomes smaller, the number becomes less, the water body gradually becomes lighter green, or even turns brown, and the water body transparency impro...

Embodiment 2

[0028] After monitoring the total nitrogen concentration and dissolved oxygen concentration in the water body to meet the requirements, perform aeration, add carbon and add silicon treatments. The added concentration of sugars as a carbon source adopts the concentration of added carbon and the concentration of nitrogen in the water. The mass ratio is 15:1 (that is, C:N is about 15:1). Adding Na while adding carbon source to water 2 SiO 3 , And make the concentration of silicon element 10-20mg / L. After the second day, it can be observed that the size of cyanobacteria blooms in the water body becomes smaller and the number becomes smaller. The green color of the water body gradually becomes lighter, becomes yellow-green, and gradually becomes light brown, and the transparency of the water body is improved. On the 7th day, add glucose as a carbon source again, and the concentration will refer to the previous ratio. It can be quickly observed that the cyanobacteria bloom particles ...

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Abstract

The invention relates to a method for inhibiting blue-green algae blooms, belonging to the fields of aquaculture and environmental science. A method for inhibiting cyanobacteria Microcystis blooms, characterized in that it comprises the following steps: (1) monitoring the concentration of nitrogen elements in water bodies where cyanobacteria Microcystis blooms occur; Continuous aeration to maintain the concentration of dissolved oxygen in the water; (3) While aerating, add carbon-containing sugars, the concentration of which depends on the concentration of total nitrogen in the water; (4) Add sugars to the water while adding silicon compounds (5) after the 2-3 day, the cyanobacteria bloom particle size in the water body becomes smaller, and the water body transparency improves; (6) at the 7-10 day, add sugar again, after adding, the water body bloom particle will become more Small, the quantity will be less. After adopting the method of the invention, the cyanobacteria bloom in the water body is effectively suppressed, and the transparency of the water body is improved, which is of great significance for environment and ecological protection.

Description

Technical field [0001] The present invention relates to a method for inhibiting cyanobacteria blooms, in particular to a method for inhibiting cyanobacteria microcystis blooms. Background technique [0002] With the development of various social and economic aspects, natural water bodies are increasingly disturbed by humans, and natural water bodies generally appear eutrophication. With the eutrophication of water bodies, the cyanobacteria blooms in the water bodies, especially the water of the cyanophyta Microcystis Hua is becoming more and more common, and the severity is getting worse. The emergence of water eutrophication and cyanobacteria blooms has seriously affected various functions of water bodies, such as aquaculture, shipping, landscape, drinking, etc., and caused water shortages in many areas of my country. Therefore, the treatment of water eutrophication and cyanobacteria blooms has become The important task of water environment management in a certain historical per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34
Inventor 王小冬刘兴国吴宗凡顾兆俊朱浩车轩
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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