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Ammonia-nitrogen removal bacteria sustained release agent, preparation method and application thereof

A technology for removing bacteria and slow-release agents, which is applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc. It can solve the problems of easy shedding, poor stability and impact resistance, and unreliable microorganisms and other issues to achieve good results and a wide range of applications

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

[0039] Add 500ml of tap water into the container, and stop heating when the water is heated to 70~80°C. Slowly add 125g of gelatin while stirring; slowly add 20g of gellan gum while stirring; slowly add 6.5g of sodium bicarbonate while stirring; slowly add 0.35g of sodium nitrite while stirring; slowly add 0.5g of sulfuric acid heptahydrate while stirring Magnesium; slowly add 3.5 g ammonium chloride while stirring; slowly add 0.35 g dipotassium hydrogen phosphate while stirring; slowly add sodium sulfide solution while stirring, and the sodium sulfide solution is dissolved in 10 ml of 0.8 g nine-fold sodium sulfide Prepared with hot water.

[0040] Allow the mixture in step 8 to cool naturally to 35-38°C, then slowly add 500ml of compound ammonia nitrogen bacteria removal bacteria solution to the mixture while stirring, mix well, and naturally solidify to obtain the ammonia nitrogen bacteria removal slow release agent.

[0041] The compound ammonia nitrogen removal bacteria ...

Embodiment 2

[0044] Embodiment 2: The embodiment 1 is enlarged and produced according to 100 times.

[0045]The ammonia nitrogen removal bacteria slow-release agent expanded production of embodiment 2 is put in the water area environment of 25 ℃, and the cycle of dissolving the colloid is 3 days; Add 10g of this ammonia nitrogen removal bacteria slow release agent in 100L initial ammonia nitrogen is 150mg / L industrial sewage. Release agent, in the case of water temperature 25 ℃, dissolved oxygen ≥ 2mg / L, the removal rate of ammonia nitrogen reaches 55% in 72 hours, 90% in 96 hours, and 95% in 120 hours.

Embodiment 3

[0046] 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.

[0047] The ammonium nitrogen removal bacteria slow-release agent after being preserved for 12 months in Example 3 was placed in a water environment at 25° C., and the cycle of dissolving the colloid was 3 days; 10 g of the ammonia nitrogen removal agent was added to 100 L of industrial sewage whose initial ammonia nitrogen was 150 mg / L. Bacterial slow-release agent, in the case of water temperature 25 ℃, dissolved oxygen ≥ 2mg / L, the ammonia nitrogen removal rate reaches 50% in 72 hours, 85% in 96 hours, and 95% in 120 hours.

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PUM

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Abstract

The invention discloses an ammonia-nitrogen removal bacteria sustained release agent. The ammonia-nitrogen removal bacteria sustained release agent comprises a solid medium, and a composite microbialagent or a flora embedded in the solid medium; The composite microbial agent or flora refers to ammonia-nitrogen removal bacteria capable of effectively removing ammonia-nitrogen pollutants in water;the solid medium include 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 ammonia-nitrogen industrial wastewater, and is particularly suitable for the treatment of flowing water bodies such as flowing water areas, river and lake cage culture.

Description

technical field [0001] The present invention relates to the technical field of microbial treatment of high-concentration ammonia-nitrogen sewage, in particular to a technology for immobilized microorganisms to treat high-concentration ammonia-nitrogen sewage, and in particular to a method of immobilization that has a good immobilization effect and can treat flowing water 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 industry, agriculture and animal husbandry, residents' domestic sewage, irrigation sewage, agricultural chemical fertilizers, etc. have a certain amount of ammonia nitrogen pollution to rural and urban water sources. At the same time, ammonia nitrogen exceeds the standard in many industrial wastewaters, such as petrochemical, oil refining, printing and dyeing, leather, steel and other industries, and ammonia nitrogen often does not...

Claims

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Application Information

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IPC IPC(8): C02F3/34
CPCC02F3/34C02F2103/007
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