Application of rabdosia amethystoides as water-blooming cyanobacteria growth inhibitor

A technology of growth inhibitor and bloom cyanobacteria, which is applied in the application field of fragrant tea plant as a bloom cyanobacteria growth inhibitor, can solve the problems of less natural distribution of aquatic plants, poor timeliness of inhibiting algae, and inability of aquatic plants to survive, and achieves the goal of inhibiting the growth of algae. The effect of algae is lasting and stable, ensuring normal growth and good inhibitory effect

Active Publication Date: 2015-11-18
TIANJIN AGRICULTURE COLLEGE
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AI Technical Summary

Problems solved by technology

The use of plant allelopathy to inhibit the growth of algae has the advantages of ecological safety, rapidity and high efficiency, and is of great significance to the ecological control of lake eutrophication. However, in water bodies with severe eutrophication or water bodies where algae have exploded, aquatic plants cannot survive. , and the natural distribution of aquatic plants is small, the biomass is small, and they are easily affected by factors such as seasons and climates. The timeliness of inhibiting algae is poor, and there are certain limitations in practical applications. to land plants

Method used

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  • Application of rabdosia amethystoides as water-blooming cyanobacteria growth inhibitor
  • Application of rabdosia amethystoides as water-blooming cyanobacteria growth inhibitor

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A preparation method for the growth inhibitor of fragrant tea vegetable bloom cyanobacteria, the steps are as follows:

[0025] ⑴ Precisely weigh 5.0g of fragrant tea, put it in a 250mL volumetric flask, add 150mL of distilled water for ultrasonic extraction for 30min, then add 100mL of distilled water, and extract overnight in the dark. spare.

[0026] (2) Prepare the mother liquor of fragrant tea and vegetables into aqueous solutions with different concentration gradients, filter them with a 0.45 μm microporous membrane with water, and add them to the liquid of Microcystis aeruginosa in the logarithmic growth phase, and set up 4 different concentration groups, respectively 0(ck), 5, 25, 100mg / L, each group has 3 parallel samples.

[0027] (3) At 0, 24, 48, 72, 96, 120, 144, and 168 hours, measure the content of chlorophyll a in the algae liquid of each treatment group and the blank control group, respectively. The specific algae inhibition data are shown in Table 1....

Embodiment 2

[0031] A preparation method for the growth inhibitor of fragrant tea vegetable bloom cyanobacteria, the steps are as follows:

[0032] ⑴Precisely weigh 10.0g of fragrant tea, put it in a 500mL volumetric flask, add 300mL of distilled water for ultrasonic extraction for 30min, then add 100mL of distilled water, and extract overnight in the dark. spare.

[0033] (2) Prepare the mother liquor of fragrant tea and vegetables into aqueous solutions with different concentration gradients, filter them with a 0.45 μm microporous membrane with water, and add them to the liquid of Microcystis aeruginosa in the logarithmic growth phase, and set up 4 different concentration groups, respectively 0(ck), 50, 250, 500mg / L, each group has 3 parallel samples.

[0034] (3) At 0, 24, 48, 72, 96, 120, 144, and 168 hours, measure the content of chlorophyll a in the algae liquid of each treatment group and the blank control group, respectively. The specific algae inhibition data are shown in Table ...

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Abstract

The invention relates to application of rabdosia amethystoides as a water-blooming cyanobacteria growth inhibitor. A treatment method of rabdosia amethystoides comprises the following steps: drying and crushing rabdosia amethystoides, adding water for ultrasonic extraction at ordinary temperature, repeating for three times, extracting for 15 min each time, and performing constant-volume operation to obtain a rabdosia amethystoides extract, namely, a water-blooming cyanobacteria growth inhibitor. The inhibitor is helpful to improve the explosive state of cyanobacterial bloom in eutrophic water, and adopts the land plant (rabdosia amethystoides) which is wide in source and low in price as the raw material, the extraction process is simple and economical, an extremely good inhibition effect can be achieved within a short time under the condition of relatively low treatment cost, and the algal inhibition function is durable and stable.

Description

technical field [0001] The invention belongs to the field of controlling cyanobacteria blooms in water bodies, in particular to the application of fragrant tea vegetables as growth inhibitors of cyanobacteria blooms. Background technique [0002] In recent years, with the rapid development of my country's industrial and agricultural production, a large amount of sewage that has not been treated in time has been discharged into rivers and lakes, resulting in varying degrees of eutrophication in many important water areas and urban landscape water bodies. The range of influence of algae explosion caused by eutrophication, that is, water bloom (waterbloom), is expanding and deteriorating. With the development of cities and the popularization of aquaculture, the degree of eutrophication is becoming more and more serious. Water pollution has spread from local areas to river basins, from downstream to upstream, from cities to rural areas, and from surface to underground. The situ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/50
Inventor 裴毅聂江力张艳飞于彬
Owner TIANJIN AGRICULTURE COLLEGE
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