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Biological agent for controlling excessive propagation of blue-green algae of aquaculture water and preparation method of biological agent

A technology for over-breeding and cultivating water bodies, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as large environmental impact, slow effect, and unstable effect, and achieve improvement Environmental quality, quick results, and improved transparency

Inactive Publication Date: 2013-07-10
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biological method has the advantages of low cost and strong operability, but there are also strongholds such as being greatly affected by the environment, unstable in effect, and relatively slow in effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present invention is a kind of biological preparation and preparation method for controlling the overgrowth of cyanobacteria in aquaculture water, which adopts the following process steps: the component ratio is calculated in parts by weight:

[0034] (1) Preparation of multifunctional microbial bacterial powder: Take Bacillus Laterosporus bacterial powder (80 mesh, ≥10 9 pcs / g) 50 parts, Bacillus subtilis powder (80 mesh, ≥10 9 pcs / g) 20 parts and Bacillus cereus powder (80 mesh, ≥10 9 pcs / g) 30 parts, put it in a mixer at 20°C and mix it evenly for 5 minutes, and mix it into a uniform powder, which is the multifunctional microbial powder, and set aside;

[0035] (2) Mixing: Take 0.1 part of lysozyme powder (20,000 U / mg) powder, 60 parts of multifunctional microbial bacterial powder prepared in step (1), 12 parts of L-lysine, and 27.9 parts of defatted rice bran, at 20°C Put it in a mixer and mix evenly, and the mixing time is 3 minutes to obtain a mixed powde...

Embodiment 2

[0037] The present invention is a kind of biological preparation and preparation method for controlling the overgrowth of cyanobacteria in aquaculture water, which adopts the following process steps: the component ratio is calculated in parts by weight:

[0038] (1) Preparation of multifunctional microbial bacterial powder: take commercially available Bacillus lateralis bacterial powder (80 mesh, ≥10 9 pcs / g) 55 parts, Bacillus subtilis powder (80 mesh, ≥10 9 pcs / g) 20 parts and Bacillus cereus powder (80 mesh, ≥10 9 pcs / g) 25 parts, put it in a mixer at 20°C and mix evenly, the mixing time is 6 minutes, mix it into a uniform powder that is multi-functional microbial powder, and set aside;

[0039] (2) Mixing: Take 0.15 parts of commercially available high-activity lysozyme (20,000 U / mg) powder, 58 parts of multifunctional microbial bacterial powder prepared in step (1), 15 parts of L-lysine, 26.85 parts of defatted rice bran, Place it in a mixer at 20°C and mix evenly fo...

Embodiment 3

[0040] Embodiment 3: a kind of biological agent and preparation method of the present invention to control the overgrowth of cyanobacteria in aquaculture water adopts the following process steps: its component ratio is calculated in parts by weight:

[0041] (1) Preparation of multifunctional microbial bacterial powder: take commercially available Bacillus lateralis bacterial powder (80 mesh, ≥10 9 pcs / g) 52 parts, Bacillus subtilis powder (80 mesh, ≥10 9 pcs / g) 25 parts and Bacillus cereus powder (80 mesh, ≥10 9 pcs / g) 23 parts, put it in a mixer at 20°C and mix evenly, the mixing time is 7 minutes, and mix it into a uniform powder, which is the multifunctional microbial powder, and set aside;

[0042] (2) Mixing: Take 0.2 parts of commercially available high-activity lysozyme (20,000 U / mg) powder, 55 parts of multifunctional microbial bacterial powder prepared in step (1), 14.8 parts of L-lysine, 30 parts of defatted rice bran, Place it in a mixer at 20°C and mix evenly...

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Abstract

The invention relates to a biological agent for controlling excessive propagation of blue-green algae of aquaculture water and a preparation method of the biological agent, and belongs to the technical field of aquaculture. The preparation method of the biological agent comprises the following steps: mainly weighing commercially available high-activity lysozyme, multifunctional microbial strains, lysine and carriers according to the ratio; mixing the components uniformly at the temperature of 20 DEG C; and packaging and sealing the mixture by using an automatic packaging machine, wherein the net content of each package is 250 to 500 g. The biological agent can be directly thrown into the aquaculture water to quickly degrade macromolecular organic matters such as protein in the aquaculture environment, remove plant nutrients such as nitrogen and phosphorus in water and sediment environments, inhibit excessive growth and propagation of the blue-green algae, accelerate death of blue-green alga cells, reduce the chlorophyll content of the water, reduce the density of the algae, increase the transparency, quickly repair entrophication of the aquaculture water environment and provide a good water environment for aquatic organisms.

Description

technical field [0001] The invention relates to a biological preparation and a preparation method for controlling the excessive reproduction of cyanobacteria in aquaculture water, belonging to the technical field of aquaculture. Background technique [0002] With the rapid economic development and the pursuit of high yield and high benefit by farmers, China's aquaculture is developing in the direction of high density, intensification and scale. Eutrophication is becoming more and more serious. Since the 1990s, explosive growth of cyanobacteria has often occurred in domestic aquaculture water bodies, forming serious cyanobacteria blooms. [0003] Water bloom refers to an ecological abnormal phenomenon in which algae, mainly cyanobacteria, multiply and gather in a short period of time in a eutrophic water body under suitable environmental conditions. The causes of cyanobacterial blooms include chemical, physical and biological factors, but chemical factors are the most impor...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/00
Inventor 吴伟王琼瞿建宏
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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