A system for removing inorganic nitrogen in low-temperature seawater holding tank

An inorganic nitrogen and seawater technology, applied in seawater treatment, water pollutants, animal husbandry wastewater treatment, etc., can solve the problems of decreased oxygen-carrying capacity of biological blood, difficulty in enriching and culturing microorganisms, and decreased dehydrogenase activity, etc. Healthy living standard, green environmental protection treatment effect, and the effect of enhancing responsiveness

Active Publication Date: 2022-01-04
SHANGHAI OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional seawater temporary storage system has weak water purification ability and high inorganic nitrogen content, resulting in poor temporary water quality, and the water treatment process of the seawater temporary storage system mainly focuses on the removal of ammonia nitrogen and nitrite nitrogen, but ignores the accumulation of nitrate, nitric acid Salt can be reduced to nitrite and amine nitrite under the action of enzymes, which reduces the oxygen-carrying capacity of biological blood and affects the survival rate of seafood
Excessive concentration of inorganic nitrogen ions in a high-salt environment will inhibit and poison microorganisms. Dehydration of microbial cells will cause the separation of cell protoplasm and reduce the activity of dehydrogenase, which will seriously affect the quality of seafood and reduce its survival rate.
At present, seawater temporary cultivation of seafood is mainly low-temperature temporary cultivation. Low-temperature temporary cultivation can maintain the freshness of seafood, but it is difficult to enrich and cultivate microorganisms that remove inorganic nitrogen under low temperature conditions. Therefore, it is urgent to construct seawater temporary cultivation in low-temperature and high-salt environments. The technology of removing inorganic nitrogen in the tank realizes the preservation and preservation of seafood

Method used

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  • A system for removing inorganic nitrogen in low-temperature seawater holding tank
  • A system for removing inorganic nitrogen in low-temperature seawater holding tank
  • A system for removing inorganic nitrogen in low-temperature seawater holding tank

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Effect test

Embodiment 1

[0040] Such as Figure 1~2 Shown is a system for removing inorganic nitrogen in a low-temperature seawater holding tank, including a domestication enrichment culture tank and an inorganic nitrogen reactor tank;

[0041] The acclimatization and enrichment cultivation tank includes a first chiller 1 and a water storage tank 7, the pipeline of the first chiller 1 communicates with the interior of the water storage tank 7, and the interior of the water storage tank 7 is provided with a nitrifying bacteria domestication and enrichment incubator 4 and a denitrifying bacteria domestication and enrichment incubator 6, the top of the nitrifying bacteria domestication and enrichment incubator 4 is provided with a first stirring head 3 and a first oxygenation head 2; 6 The top is pierced with a second stirring head 5 inwardly;

[0042] The inorganic nitrogen reactor tank includes a second chiller 8, a closed water storage tank 10, a peristaltic pump 11 and a reactor 12, the pipeline of ...

Embodiment 2

[0044] The method for cultivating nitrifying bacteria in the acclimation and enrichment incubator for nitrifying bacteria is as follows:

[0045] (1) Collect mariculture water samples and store them in a refrigerator at 4°C;

[0046](2) Take 1000ml of mariculture water sample and put it into the acclimation and enrichment incubator of nitrifying bacteria, add the nitrifying bacteria culture medium of 8 times the volume of the mariculture water sample, adjust the salinity to 27.5g / L with sodium chloride, The sodium solution adjusts the pH to 7.5, oxygenates and stirs intermittently to keep the oxygen content of dissolved A above 4mg / L, cultivates at a constant temperature at 15°C, and artificially controls the environmental factors of nitrifying bacteria for 55 days; obtains nitrification bacteria liquid.

[0047] In step 2, the nitrifying bacteria culture medium comprises sodium nitrite 1g / L, anhydrous sodium carbonate 1g / L, disodium hydrogen phosphate 0.5g / L, manganese sulfa...

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Abstract

The invention relates to the field of microbial purification of aquatic product temporary cultivation water systems, in particular to a system for removing inorganic nitrogen in low-temperature seawater temporary cultivation tanks. A system for removing inorganic nitrogen in a low-temperature seawater temporary cultivation tank, which includes a domestication enrichment culture tank and an inorganic nitrogen reactor tank; the inorganic nitrogen reactor tank is provided with modified wheat sticks, and the invention regulates denitrification in low-temperature seawater The ecological factors and tolerance range of the bacterial flora are controlled and utilized, and then the nitrification and denitrification collaborative removal of inorganic nitrogen technology is established to achieve the dual effects of inorganic nitrogen removal in the seawater holding system and seafood preservation.

Description

technical field [0001] The invention relates to the field of microbial purification of aquatic product temporary cultivation water systems, in particular to a system for removing inorganic nitrogen in low-temperature seawater temporary cultivation tanks. Background technique [0002] With the improvement of people's living standards, people's demand for live seafood is increasing day by day, and they have higher requirements for keeping alive and taking care of aquatic products. The traditional seawater temporary storage system has weak water purification ability and high inorganic nitrogen content, resulting in poor temporary water quality, and the water treatment process of the seawater temporary storage system mainly focuses on the removal of ammonia nitrogen and nitrite nitrogen, but ignores the accumulation of nitrate, nitric acid Salt can be reduced to nitrite and amine nitrite under the action of enzymes, which reduces the oxygen-carrying capacity of biological blood ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/34C02F101/16C02F103/08C02F103/20
CPCC02F3/302C02F3/34C02F2305/06C02F2101/16C02F2103/20C02F2103/08
Inventor 张饮江卢家磊兰燕月
Owner SHANGHAI OCEAN UNIV
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