Vegetable tannin algae inhibitor and method for inhibiting overgrowth of algae in eutrophicated fresh water area

A technology of tannin algae inhibitor and plant tannin, which can be used in plant growth regulators, botanical equipment and methods, chemical instruments and methods, etc., and can solve problems such as endangering aquatic ecosystems, affecting human health, and secondary pollution. , to achieve the effect of enhancing algae inhibitory efficacy and broad spectrum, low market price and prolonging service life

Inactive Publication Date: 2012-02-01
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a plant tannin unilateral and/or compound algastatic agent for preventing and eliminating the occurrence of freshwater algal blooms, so as to solve the problem of endangering aquatic ecology due to the addition of chemical

Method used

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  • Vegetable tannin algae inhibitor and method for inhibiting overgrowth of algae in eutrophicated fresh water area
  • Vegetable tannin algae inhibitor and method for inhibiting overgrowth of algae in eutrophicated fresh water area
  • Vegetable tannin algae inhibitor and method for inhibiting overgrowth of algae in eutrophicated fresh water area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, gentisic acid, ellagic acid, and tannic acid inhibit Microcystis (Microcystis) (single prescription)

[0022] Prepare a certain concentration of gentisic acid, ellagic acid, and tannic acid, and add them to a cell density of 6.2×10 9 Each / L of Microcystis algae liquid, the final concentration of the three substances is 10mg / L and cultivated in a constant temperature light incubator. After cultivating for four days, it can be found that the algae liquid changed from the initial dark green to light green, and the algae liquid biomass was measured, and the calculated algae inhibition rates were 91.8%, 70.6%, and 65.9%, respectively.

Embodiment 2

[0023] Embodiment 2, gentisic acid, ellagic acid, and tannic acid inhibit Scenedesmus (Scenedesmus) (single prescription)

[0024] Prepare a certain concentration of gentisic acid, ellagic acid, and tannic acid respectively, and add them to a cell density of 5.1×10 6 The final concentrations of the three substances were all 10mg / L in the Scenedesmus fluid of each / L, and they were cultivated in a constant temperature light incubator. After cultivating for four days, it can be found that the algae liquid changed from the initial dark green to light green, and the biomass of the algae liquid was measured, and the calculated algae inhibition rates were 65.1%, 47.4%, and 46.6%, respectively.

Embodiment 3

[0026] Prepare a certain concentration of gentisic acid, ellagic acid, and tannic acid, hydroquinone, catechol, and p-hydroxybenzoic acid, and add them to the algae liquid of the algae listed in Table 1 below. When the algae inhibition rate The required concentration of each plant tannin is shown in Table 1.

[0027] Table 1 Adding a single plant tannin

[0028]

[0029]

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PUM

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Abstract

The invention relates to the field of pollutant controlling, and specifically relates to a vegetable tannin algae inhibitor and a method for inhibiting the overgrowth of algae in eutrophicated fresh water areas. The vegetable tannin algae inhibitor provided by the invention comprises one or more components selected from gentisic acid, ellagic acid, and tannic acid. All the components of the algaeinhibitor can be obtained through artificial synthesizing, and are cheap in price. The preparation method of the complex agent is simple, and has a strong operability. With the algae inhibitor, secondary pollution to the environment is not caused, water areas can be prevented from water bloom, and the stability of aquatic ecosystems can be maintained. With the complex algae inhibitor provided by the invention, over dose of single component can be effectively avoided, such that the damage to the aquatic ecosystems can be prevented, and various degrees of drug resistances gradually generated inalgae caused by long-term and repeated usage of single algae inhibitor can be effectively overcome or retarded. Also, with the algae inhibitor, algae inhibiting capacity and broad spectrum property of the algae inhibitor can be effectively improved.

Description

technical field [0001] The invention relates to the field of object pollution control. Specifically, the invention relates to a plant tannin algae inhibitor and a method for inhibiting the excessive growth of algae in eutrophic freshwater water bodies. Background technique [0002] Economic development and rapid population increase have contributed to the deterioration of the water environment and ecological environment, especially the pollution of eutrophication in urban water bodies, resulting in frequent occurrence of algal blooms in surface water bodies. , the dissolved oxygen decreases, the transparency decreases, and the toxic algae will release toxic substances into the water body, endangering aquatic organisms and even human health. [0003] Chemical methods are commonly used to control the overgrowth of algae in water bodies. Chemical methods include chemical precipitation, acid-base neutralization, and adding algaecides. The precipitation method reduces N and P by...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N37/40A01N31/16A01N43/16A01P13/00C02F1/00
Inventor 梁文艳阮铃铃隋丽丽梁志霞许佳
Owner BEIJING FORESTRY UNIVERSITY
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