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Blue algae inhibitor, preparation and use method thereof

A technology of inhibitors and cyanobacteria, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as high cost, hidden danger of secondary pollution, difficulty in achieving obvious effects, etc., and achieve cost Low, high efficiency, the effect of inhibiting the growth of cyanobacteria

Inactive Publication Date: 2009-07-08
HEFEI LANXIN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the absence of other conditions, this method will be at the cost of delaying economic development and reducing people's living standards, so it is difficult to achieve obvious results in the short term; (2) Biological methods, such as cultivating plants, and then cleaning or utilizing the plants , this method has the disadvantages of long period and low utilization value. At the same time, the operation and maintenance costs of this method are high, and it is difficult to implement on a large scale; high, poor operability, unable to deal with large-scale cyanobacteria, and can only be used as a supplement to other methods; (4) using chemical agents for control, this method is costly and has hidden dangers of secondary pollution, so it can only be used for small-scale, emergency processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 100g titanium oxynitride (TiO x N 2-x , x=0.5) was added to 1m under the condition of high-speed shear mixing 3 In water, a 0.1 g / L titanium oxynitride dispersion was obtained.

[0012] In small-scale applications, take 100ml of the above-mentioned titanium oxynitride dispersion and pour it into a 10-liter fish tank, mix evenly to obtain a titanium oxynitride aqueous solution with a concentration of 1 mg / L. Under the action of natural light, experiments have proved that the water in the fish tank No obvious cyanobacteria appeared in 2 months, but cyanobacteria appeared within a week in the fish tank without adding the above-mentioned titanium oxynitride dispersion.

Embodiment 2

[0014] 1kg titanium oxynitride (TiO x N 2-x , x=1.2) was added to 1m under the condition of high-speed shear mixing 3 In water, a 1 g / L titanium oxynitride dispersion was obtained.

[0015] In the case of large-scale application, the above-mentioned titanium oxynitride dispersion liquid is added to the upstream of the flowing water area to make the concentration of titanium oxynitride in the water body reach 0.5mg / L. Experiments have proved that no obvious cyanobacteria appear downstream.

Embodiment 3

[0017] 10kg titanium oxynitride (TiO x N 2-x , x=1.3) was added to 1m under ultrasonic and mechanical stirring 3 In water, a 10 g / L titanium oxynitride dispersion was obtained.

[0018] In small-scale applications, draw a water body of 50 square meters in still waters, add the above titanium oxynitride dispersion, and stir to make the concentration of titanium oxynitride in the water reach 10mg / L. No obvious cyanobacteria appeared in the area, while a large number of cyanobacteria appeared in other areas within half a month.

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Abstract

The invention relates to a blue algae inhibitor. The inhibitor is titanium oxynitride (TiOxN2-x) dispersion liquid, wherein x is more than 0 and less than 2, and the particle size of titanium oxynitride (TiOxN2-x) is between 1 and 100 nanometers. The invention also discloses a method for preparing and using the blue algae inhibitor. The method comprises the steps of uniformly dispersing titanium oxynitride (TiOxN2-x) powder in water, forming the dispersion liquid at a certain concentration, further uniformly dispersing the dispersion liquid in a to-be-treated object when the inhibitor is used, utilizing the characteristic that the titanium oxynitride (TiOxN2-x) generates active substances in visible light to inhibit the growth of blue algae. The inhibitor has the advantages of high efficiency, low cost and suitability for application on various scales.

Description

technical field [0001] The invention relates to a cyanobacteria inhibitor and its preparation and use methods. Background technique [0002] With the development of economy and the improvement of people's living standards, the problem of blue-green algae caused by eutrophication of water body has attracted more and more attention. How to solve the problem of blue-green algae economically and effectively is particularly urgent. [0003] At present, there are mainly the following methods to solve the blue-green algae problem: (1) strictly control the pollution source and reduce the content of nutrients in the water body. In the absence of other conditions, this method will be at the cost of delaying economic development and reducing people's living standards, so it is difficult to achieve obvious results in the short term; (2) Biological methods, such as cultivating plants, and then cleaning or utilizing the plants , this method has the disadvantages of long period and low ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00
Inventor 张芬红张彤
Owner HEFEI LANXIN NEW MATERIAL