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Growth-beneficial algae growth accelerant and preparation method and application thereof

A technology of growth promoters and probiotic algae, applied in biochemical equipment and methods, methods based on microorganisms, using added compounds to stimulate growth, etc., can solve problems such as bad, limited diatom growth, and lack of trace elements

Active Publication Date: 2019-05-28
SHENZHEN HONGKONG INSTITUTION OF IND EDUCATION & RES ENVIRONMENTAL ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, eutrophic water has a large amount of nitrogen and phosphorus elements needed for the growth of diatoms, but lacks trace elements, especially silicon, which limits the growth of diatoms. The current solution to the problem of trace elements is usually to spray Growth promoters containing trace elements, but traditional growth promoters are not effective in promoting the growth of diatoms, and cannot well achieve biological control of eutrophic water bodies

Method used

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  • Growth-beneficial algae growth accelerant and preparation method and application thereof
  • Growth-beneficial algae growth accelerant and preparation method and application thereof
  • Growth-beneficial algae growth accelerant and preparation method and application thereof

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preparation example Construction

[0035] Such as figure 1 Shown, the preparation method of the probiotic growth promoter of one embodiment, the probiotic growth promoter prepared by the method can be used to promote the growth of diatoms, the preparation method of the probiotic growth promoter comprises the following steps:

[0036] Step S10: Prepare Al2O3-modified nano-silica powder through a sol-gel method using Al2O3, a silicon source, a catalyst and a first solvent.

[0037] Among them, the sol-gel method uses compounds containing highly chemically active components as precursors, uniformly mixes these raw materials in the liquid phase, and undergoes hydrolysis and condensation chemical reactions to form a stable transparent sol system in the solution. The aging colloidal particles are slowly aggregated to form a three-dimensional network structure gel, and the gel network is filled with solvents that lose fluidity to form a gel; the gel is dried, sintered and solidified to prepare molecular and even nano-...

Embodiment 1

[0086] The preparation process of the probiotic algae growth promoter of the present embodiment is as follows:

[0087] (1) Take 180mL of absolute ethanol in a beaker, add 80mL of deionized water to the beaker, and then add 6g of powdered Al 2 o 3 , ultrasonically disperse evenly to obtain a dispersion.

[0088] (2) Add sodium water glass (Na 2 O nSiO 2 , n=2.5, the mass percentage of sodium silicate is 97%) to obtain the pre-preparation solution.

[0089] (3) Under the condition of continuous stirring (stirring rate is 500 rpm), add acetic acid-ammonium acetate buffer solution (the total mass percentage concentration of acetic acid and ammonium acetate in the acetic acid-ammonium acetate buffer solution) 5%, the mass ratio of acetic acid and ammonium acetate is 1:1) until the pH value of the pre-prepared solution reaches 7, continue to stir (stirring speed is 500 rpm) for 2 hours, and then place it in a water bath at 45°C, Aged for 4 hours to form a gel.

[0090] (4) Th...

Embodiment 2

[0098] The preparation process of the probiotic algae growth promoter of the present embodiment is as follows:

[0099] (1) Take 50mL of absolute ethanol in a beaker, add 100mL of deionized water to the beaker, and then add 2g of powdered Al 2 o 3 , ultrasonically disperse evenly to obtain a dispersion.

[0100] (2) Add sodium water glass (Na 2 O nSiO 2 , n=1.5, the mass percentage of sodium silicate is 97%) to obtain the pre-preparation solution.

[0101] (3) Under the condition of continuous stirring (stirring rate is 300 rpm), add acetic acid-ammonium acetate buffer solution (the total mass percentage concentration of acetic acid and ammonium acetate in the acetic acid-ammonium acetate buffer solution) 10%, the mass ratio of acetic acid and ammonium acetate is 1:1) until the pH value of the pre-prepared solution reaches 6, continue to stir (stirring speed is 300 rpm) for 3 hours, and then place it in a water bath at 30°C, Aged for 6 hours to form a gel.

[0102] (4) T...

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Abstract

The invention relates to a growth-beneficial algae growth accelerant and a preparation method and application thereof. The preparation method of the growth-beneficial algae growth accelerant comprisesthe following steps of mixing aluminum oxide, silicon source, a catalyst and a first solvent by a sol-gel method, so as to obtain the aluminum oxide-modified nanometer silicon dioxide powder; mixingthe aluminum oxide-modified nanometer silicon dioxide powder, water-soluble organic iron and a second solvent to react, so as to obtain the growth-beneficial algae growth accelerant. The growth-beneficial algae growth accelerant is used for well accelerating the growth of diatom.

Description

technical field [0001] The invention relates to the field of water body treatment, in particular to a probiotic algae growth promoter and its preparation method and application. Background technique [0002] The natural and normal water body has balanced nutrients, including nitrogen, phosphorus, potassium and other elements. The native beneficial algae grow in the water body, which enriches the water body with oxygen, promotes the reproduction of zooplankton, fish and shrimp, and forms a healthy aquatic ecological environment. With the development of industrialization and urbanization, a large amount of pollutants containing nitrogen, phosphorus, and potassium are discharged into the water body, causing an imbalance of nutrients in the water body, resulting in the inhibition of the growth of native beneficial algae in the water body, and the outbreak of harmful algae, such as cyanobacteria. Cyanobacteria release algae toxins during large-scale growth, and cause water corrup...

Claims

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Application Information

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IPC IPC(8): C12N1/12C12N1/38C12R1/89
Inventor 王胜凡王波王磊庄毅璇刘欢林明吴世闽
Owner SHENZHEN HONGKONG INSTITUTION OF IND EDUCATION & RES ENVIRONMENTAL ENG TECH CO LTD
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