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Method for treating breeding water by composite bacteria

A technology for aquaculture water and compound bacteria, which is applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. The problem of high cost is to achieve the effect of stable COD control effect, good ammonia nitrogen control effect and outstanding control ability.

Inactive Publication Date: 2009-11-18
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, in aquaculture, most of the single microbial strains (such as photosynthetic bacteria or nitrifying bacteria) are used to control and purify water quality, but there are certain limitations: narrow adaptation range, unstable effect, etc., if used alone Photosynthetic bacteria control water quality, the control effect of total phosphorus is not obvious, water eutrophication has not been effectively controlled, COD can be controlled unstable, and sometimes there will be large changes, affecting the survival of aquatic organisms, and even causing small-scale aquatic organisms. The death of organisms reduces the survival rate of aquatic organisms
There are also mixed bacteria preparations composed of photosynthetic bacteria, pseudomonas, bacillus, nitrifying bacteria and denitrifying bacteria on the market, but the cost is high and the price is expensive

Method used

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  • Method for treating breeding water by composite bacteria
  • Method for treating breeding water by composite bacteria
  • Method for treating breeding water by composite bacteria

Examples

Experimental program
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Effect test

Embodiment 1

[0025] (1) Preparation of composite bacteria: photosynthetic bacteria and streptococcus faecalis are mixed at a weight ratio of 1:1, and set aside.

[0026] (2) Take 10 liters of aquaculture water and raise 25 carps inside. The measured water quality of the aquaculture water is: COD: 90mg / L; ammonia nitrogen: 0.5mg / L; total phosphorus: 0.2mg / L; Add the compound bacteria of 2.0% of the total weight of the culture water every 3 days. After 30 days, the measured water quality of the culture water is COD: 88mg / L; ammonia nitrogen: 0.61mg / L; total phosphorus: 0.9mg / L; The aquaculture water is suitable for the survival of aquatic organisms.

Embodiment 2

[0028] (1) Preparation of composite bacteria: The photosynthetic bacteria and Streptococcus faecalis are mixed at a weight ratio of 1:0.5 for use.

[0029] (2) Take 10 liters of aquaculture water and raise 25 carps inside. The measured water quality of the aquaculture water is: COD: 92mg / L; ammonia nitrogen: 0.65mg / L; total phosphorus: 0.3mg / L; The compound bacteria of 1.5% of the total weight of the culture water was added every 3 days. After 30 days, the water quality of the culture water was measured as COD: 82mg / L; ammonia nitrogen: 0.63mg / L; total phosphorus: 1.12mg / L; Aquaculture water is more suitable for the survival of aquatic organisms.

Embodiment 3

[0031] (1) Preparation of composite bacteria: photosynthetic bacteria and streptococcus faecalis are mixed at a weight ratio of 1:1.5 for use.

[0032] (2) Take 10 liters of aquaculture water and raise 25 carps inside. The measured water quality of the aquaculture water is: COD: 90mg / L; ammonia nitrogen: 0.58mg / L; total phosphorus: 0.58mg / L; Add the compound bacteria of 3.0% of the total weight of the culture water every 3 days. After 30 days, the measured water quality of the culture water is COD: 98mg / L; ammonia nitrogen: 0.62mg / L; total phosphorus: 0.85mg / L; Aquaculture water is more suitable for the survival of aquatic organisms.

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Abstract

The invention relates to a method for treating breeding water by composite bacteria. The invention adopts the technical proposal that: 1.5 to 3.0 percent of the composite bacteria accounting for the total weight of the breeding water is thrown into the breeding water every three days, wherein the composite bacteria is mixed bacteria of photosynthetic bacteria and streptococcus faecalis according to a weight ratio of 1:0.5-1.5. The method has low cost and stable action effect, and can effectively improve the water quality of the breeding water, enhance the resistance capability of aquatic organism, and improve the survival rate of the aquatic organism.

Description

Technical field [0001] The invention relates to a method for processing aquaculture water, in particular to a method for processing aquaculture water by using compound bacteria. Background technique [0002] The principle of water quality microbial control technology is to use microorganisms to decompose harmful factors in water to become harmless substances, but they can use the energy generated during the decomposition to grow. [0003] Before the 1970s, due to the advent of antibiotics, the success of sterile animal breeding and the determination of the absolute predominance of anaerobic bacteria in the intestinal tract, etc., all played a major role in promoting microecology research, thus stimulating the development of microecological preparations. . In addition to the production of microecological preparations in human medicine, animal husbandry and veterinary medicine, microecological beverages, and cosmetics, it has also been widely used in aquaculture. The bacterial spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
Inventor 付保荣徐成斌马溪平杜林李法云孟雪莲曹向宇
Owner LIAONING UNIVERSITY
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