High-efficiency COD degrading bacteria sustained release agent, preparation method and application thereof

A technology for degrading bacteria and slow-release agents, applied in biochemical equipment and methods, chemical instruments and methods, and methods based on microorganisms, etc., can solve problems such as easy shedding, poor stability and impact resistance, and insufficient reliability of microorganisms. Achieve reasonable compatibility, wide application range and good immobilization effect

Pending Publication Date: 2018-12-18
上海利蒙生态环境科技(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common carriers such as: sodium alginate, diatomaceous earth, cellulose, etc., but the microorganisms immobilized by this method are not firm enough, easy to fall off, poor in stability and impact resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Add 284ml of tap water into the container, and stop heating when the water is heated to 73.59~76.67°C. Slowly add 62.5g of gelatin while stirring; then slowly add 45.4g of yeast extract while stirring;

[0046] Slowly add 0.46g of sodium sulfide nonohydrate (dissolved in 10ml of hot water) and 375ml of defoamer while stirring; slowly add a mixture of 62.5g of gelatin and 18g of gellan gum while stirring; slowly add 85g of yeast extract while stirring slowly add 4.5g sodium acetate while stirring; slowly add 4.5g magnesium sulfate heptahydrate while stirring; slowly add 4.5g ammonium chloride while stirring; slowly add 4.5g dipotassium hydrogen phosphate while stirring; Add 4.3g of calcium chloride, dissolved in 18ml of hot water; slowly add 4.5g of calcium propionate while stirring;

[0047] When the above mixture is cooled to 43.3°C, slowly add 326.5ml of composite COD-degrading bacteria liquid into the mixture while stirring, mix well, and naturally solidify to obtai...

Embodiment 2

[0051] Embodiment 2: The embodiment 1 is enlarged and produced according to 100 times.

[0052] Put the high-efficiency COD-degrading bacteria slow-release agent expanded in Example 2 into the water environment at 25°C, and the period for dissolving 90% of the colloid is 3 days; add 10g of the high-efficiency COD to 100L of industrial sewage with an initial COD of 1000mg / L. COD-degrading bacteria slow-release agent, under the condition of water temperature 25℃ and dissolved oxygen 2mg / L, the COD degradation rate reaches 73% in 48 hours, 87% in 72 hours, and 92% in 96 hours.

Embodiment 3

[0053] Embodiment 3: After the embodiment 1 is scaled up to 100 times, it is prepared into a column shape, and 1 kg of vacuum packaging is taken and stored for 12 months.

[0054] With the high-efficiency COD-degrading bacteria slow-release agent stored in Example 3 for 12 months in a water environment at 25°C, the period for dissolving 90% of the colloid is 3 days; add 10g to 100L of industrial sewage with an initial COD of 1000mg / L The high-efficiency COD-degrading bacteria slow-release agent, under the condition of water temperature 25°C and dissolved oxygen 2mg / L, the COD degradation rate reaches 70% in 48 hours, 85% in 72 hours, and 93% in 96 hours.

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PUM

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Abstract

The invention discloses a high-efficiency COD degrading bacteria sustained release agent. The high-efficiency COD degrading bacteria sustained release agent comprises a solid medium, a composite microbial agent or a flora embedded in the solid medium; the composite microbial agent or flora refers to COD degrading bacteria capable of effectively degrading COD in water; The component of the solid medium includes a gel polymer, and the gel polymer is one or both of gelatin and gellan gum. The sustained release agent product of the invention has wide application range, and can be used for the treatment of high COD industrial wastewater, and is particularly suitable for the treatment of organic pollutants in flowing water bodies such as flowing water areas, rivers and lake cage culture.

Description

technical field [0001] The present invention relates to the technical field of microbial treatment of high-concentration organic sewage, in particular to the technology of immobilized microorganisms for high-concentration organic sewage treatment, and in particular to a method of immobilization that has a good immobilization effect and can treat water in flowing waters such as rivers or cage culture water bodies for a long time. Contaminated microbial slow release agent. Background technique [0002] In recent years, with the rapid development of my country's industry, agriculture, and aquaculture, various types of industrial drainage, rivers, lakes and other water sources have certain organic pollution, and many water sources have serious COD exceeding the standard. The COD of effluent from petrochemical, oil refining, printing and dyeing industries often does not meet the standard, and the organic pollutant indicators of water sources such as rivers and lakes seriously exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/04C02F3/34C12R1/125C12R1/10C12R1/07C12R1/38C12R1/01C02F103/20
CPCC02F3/341C02F3/348C02F2103/007C02F2103/20C12N11/04
Inventor 阮秋宁梁飞张晓龙葛明峰胡焰宁徐亨军
Owner 上海利蒙生态环境科技(集团)有限公司
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