Marine algae culture device and application thereof

A cultivation device and technology for marine algae, which are applied in seaweed cultivation, application, single-cell algae, etc., can solve the problems of low light utilization rate, easy blockage of pipes, agglomeration, etc. high rate effect

Active Publication Date: 2020-01-21
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The algae cultivation device of this invention can not be affected by the weather and improves the efficiency of algae cultivation, but the cost of using transparent tubes in this invention is extremely high, and because most of the large algae cells are easy to entangle, agglomerate, and attach to the wall, they are easy to block the pipeline and cannot Meet the requirements of large-scale cultivation of algae
[0006] At present, algae cultivation still has problems such as low light utilization rate, high-density cultivation can not be achieved due to the influence of seasons and weather. Therefore, it is urgent to develop a marine algae cultivation device suitable for large-scale cultivation

Method used

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  • Marine algae culture device and application thereof
  • Marine algae culture device and application thereof
  • Marine algae culture device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Take sargassum seedlings, soak them in 50% ethanol aqueous solution for 20 seconds and take them out to obtain algae seedlings 1; 3 The density was inoculated in the culture pool with an internal light intensity of 120 μmol m -2 ·s -1 , cultivated under the condition of water temperature of 26°C for 2 days to obtain the algae seedling 2, and the algae seedling 2 was supplemented with CO in the water body by intermittent aeration 2 The way of secondary culture, to obtain mature algae;

[0052] Among them, the gas flow rate of the intermittent aeration is 10L / min, the concentration of carbon dioxide in the gas is 600μL / L, the aeration is 2h, and the aeration is stopped for 0.5h;

[0053] During the secondary cultivation process, the light intensity was 90 μmol m -2 ·s -1 , the light time is 14h, and the water temperature is 23°C; the replacement amount of seawater per day is 1 / 8 of the total amount of seawater; every 8 days, add 2.5-4mL / L spinosad mixed solution to th...

Embodiment 2

[0055] Take the sargassum seedlings, soak them in 60% ethanol aqueous solution for 10 seconds and take them out to obtain the algae seedlings 1; 3 The density was inoculated in the culture pool with an internal light intensity of 100 μmol m -2 ·s -1 , cultivated under the condition of water temperature of 28°C for 3 days to obtain the algae seedling 2, and the algae seedling 2 was supplemented with CO in the water body by intermittent aeration 2 The way of secondary culture, to obtain mature algae;

[0056] Among them, the gas flow rate of intermittent aeration is 15L / min, the concentration of carbon dioxide in the gas is 400μL / L, aeration is 2h, and aeration is stopped for 0.5h;

[0057] During the secondary cultivation process, the light intensity was 110 μmol m -2 ·s -1 , the light time is 12h, and the water temperature is 25°C; the daily replacement amount of seawater is 1 / 10 of the total amount of seawater; every 10 days, add 4ml / L spinosad mixed solution to the backw...

Embodiment 3

[0059] Take sargassum seedlings, soak them in 55% ethanol aqueous solution for 15 seconds and take them out to obtain algae seedlings 1; pretreated algae seedlings 1, press 4.5kg / m 3 The density was inoculated in the culture pool with an internal light intensity of 110 μmol m -2 ·s -1 , and the water temperature was 27°C for 2.5 days to obtain algae seedlings 2, and the algae seedlings 2 were supplemented with CO in the water body by intermittent aeration. 2 The way of secondary culture, to obtain mature algae;

[0060] Among them, the gas flow rate of intermittent aeration is 13L / min, the concentration of carbon dioxide in the gas is 500μL / L, the aeration is 2h, and the aeration is stopped for 0.5h;

[0061] During the secondary culture, the light intensity was 100 μmol m -2 ·s -1 , the light time is 13h, and the water temperature is 24°C; the daily replacement amount of seawater is 1 / 9 of the total amount of seawater; every 9 days, 3.5ml / L spinosad mixed solution is adde...

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Abstract

A marine algae culture device comprise a culture pool, an aeration system, an internal circulation system, an additional light source, a temperature control system and a dirt discharging port; the aeration system is positioned at the bottom of the culture pool and comprises a fan, an aerator and an aeration pipe; the internal circulation system comprises a water discharging pipe, a purification system and a water inlet pipe; the additional light source is positioned at the top of the culture pool; the temperature control system comprise a temperature control rod and a control box; the temperature control rod is positioned on the middle part of the culture pool; the temperature control rod is connected with the temperature control box; and the dirt discharging port is positioned at the bottom of the culture pool. The invention also provides a method for performing algae culture by applying the device. The method comprises the following steps: pretreating algae seedlings to obtain algaeseedlings 1; putting the obtained algae seedlings 1 into the culture pool to perform cultivation to obtain algae seedlings 2; and performing intermittent aeration and secondary cultivation on the obtained algae seedlings 2 to obtain mature algae. The light utilization rate is high, the temperature is controllable, influence by the external environment is avoided, high-density culture can be realized, and technical support is provided for large-scale cultivation of marine algae in China.

Description

technical field [0001] The invention belongs to the technical field of algae cultivation, and in particular relates to a marine algae cultivation device and its application. Background technique [0002] Algae is an important part of aquaculture. Algae is not only an important bait organism for breeding fish, shrimp and shellfish seedlings, but also plays a role in water quality regulation. It plays a very important role in aquaculture and maintains the culture system. Diversity, material cycling and energy transfer play an important role. [0003] The cultivation of algae is usually related to temperature and light. At present, artificial cultivation of algae is usually carried out in culture ponds. The culture ponds are open and naturally cultivated by sunlight and supplemented with nutrient solution appropriately. The algae culture device of this method is affected by sunlight, the photosynthesis time of algae is short, the growth cycle is long, the algae reproduction is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/38C12M1/36C12M1/12C12M1/04C12M1/00C12N1/12A01G33/00A01G7/02A01G7/04C12R1/89
CPCA01G7/02A01G7/045A01G33/00C12M21/02C12M23/02C12M29/06C12M29/18C12M29/20C12M31/02C12M33/14C12M37/00C12M41/06C12M41/18C12M45/00C12N1/12Y02A40/80
Inventor 刘涛金月梅
Owner OCEAN UNIV OF CHINA
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