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Photosynthetic organism culture apparatus

A cultivation device and photosynthetic biology technology, applied in biochemical cleaning devices, enzymology/microbiology devices, photobioreactors, etc., can solve the problems of high energy consumption and unfavorable large-scale production, and achieve the effect of reducing energy consumption

Active Publication Date: 2015-07-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it requires extremely high energy consumption to drive all the algae liquid to flow, and the flow of algae liquid in the horizontal direction (or the movement perpendicular to the direction of light) is not necessary for the light reception and mass transfer of microalgae
Therefore, this driving mode is obviously not good for mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This example is used to illustrate the method for cultivating photosynthetic organisms of the present invention.

[0054] use as figure 1 , figure 2 The shown photosynthetic organism cultivation device cultivates Chlorella. Use BG11 medium, nitrogen fertilizer is 0.3g / L urea, control temperature is between 20-30°C, and the initial concentration of algae is OD 680 0.5, 2% (v / v) CO is introduced 2 Aerated culture. Spoiler 4 is made up of a group of slices that form an angle of 45 degrees with the horizontal direction, its height is 1cm, and the thickness of algae liquid is 10cm. Start the spoiler mechanism in the photosynthetic organism cultivation device to make the moving plate 3 drive the spoiler 4 back and forth Movement, adjust its movement speed to 50cm / s, frequency to 0.1Hz, the algae fluid moves up and down under the drive of the turbulence mechanism, and the movement speed of photosynthetic organisms is determined to be 40-60cm / s by Doppler current meter. C...

Embodiment 2

[0056] This example is used to illustrate the method for cultivating photosynthetic organisms of the present invention.

[0057] Cultivate Chlorella according to the method of Example 1, the difference is that the spoiler 4 is made of a group of thin slices with an angle of 60 degrees to the horizontal direction, its height is 5cm, and the thickness of the algae liquid is 15cm, and the photosynthetic organism cultivation device is started The turbulence mechanism in it makes the moving plate 3 drive the turbulence plate 4 to move back and forth, adjust its motion speed to 200cm / s, and the frequency is 10Hz. The movement speed of photosynthetic organisms is 100-400cm / s. Check the OD of the algae solution every day 680 value, harvested after 14 days of continuous culture, and its growth curve is shown in image 3 .

Embodiment 3

[0059] This example is used to illustrate the method for cultivating photosynthetic organisms of the present invention.

[0060] Cultivate Chlorella according to the method of Example 1, the difference is that the spoiler 4 is made of a group of slices at an angle of 30 degrees to the horizontal direction, its height is 4cm, and the thickness of the algae liquid is 20cm. Start the photosynthetic organism cultivation device The turbulence mechanism makes the moving plate 3 drive the turbulence plate 4 to move back and forth, adjust its movement speed to 100cm / s, and the frequency is 5Hz, and the algae fluid moves up and down under the drive of the turbulence mechanism, and the photosynthesis is measured by the Doppler current meter. The movement speed of living things is 60-150cm / s. Check the OD of the algae solution every day 680 value, harvested after 14 days of continuous culture, and its growth curve is shown in image 3 .

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Abstract

The invention discloses a photosynthetic organism culture apparatus. A culture zone (1) arranged toward an illumination direction (D) is formed in the culture apparatus, the culture zone is used for accommodating a culture solution containing photosynthetic organisms, the culture apparatus comprises a flow disturbing mechanism and a driving mechanism (2) thereof, and the flow disturbing mechanism can be driven by the driving mechanism to move in the culture zone in order to guide the culture solution to flow along the illumination direction. In the prior art, a culture mode is characterized in that an alga liquid is completely driven through a paddle wheel (raceway pond) or a cycle water pump (closed photobioreactor) to flow; and in the invention, the movement of the flow disturbing mechanism positioned in the culture zone is adopted to drive the culture solution to move back and forth in the culture apparatus along the illumination direction in order to make cells of photosynthetic organisms intermittently move to the surface of the culture solution and be exposed to light, so a very ideal culture effect is reached, and the energy consumption is greatly reduced.

Description

technical field [0001] The invention relates to a device for cultivating photosynthetic organisms, in particular to a device for cultivating microalgae. Background technique [0002] Photosynthetic organisms are a class of organisms that can use light for photosynthesis, such as photosynthetic bacteria and microalgae. Microalgae are a class of low-level plants that grow in water with a wide variety and are extremely widely distributed. It is a cell factory driven by sunlight, and absorbs CO through efficient photosynthesis of microalgae cells. 2 , convert light energy into chemical energy of carbohydrates such as fat or starch, and release O 2 . The use of microalgae to produce bioenergy and chemicals can simultaneously replace fossil energy and reduce CO 2 emissions etc. [0003] Microalgae are generally cultivated in photobioreactors (photosynthetic organism cultivation devices). There are two main types of photobioreactors: open and closed. Whether it is an open pho...

Claims

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Application Information

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IPC IPC(8): C12M1/02C12R1/89
CPCC12M21/02C12M41/00C12M41/06C12M41/12C12M41/26C12M41/32C12M41/36
Inventor 荣峻峰朱俊英黄绪耕周旭华纪洪波
Owner CHINA PETROLEUM & CHEM CORP
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