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Plate Photobioreactor

A photobioreactor, plate technology, applied in photobioreactors, microorganisms, biochemical instruments, etc., can solve the problems of high manufacturing cost, difficulty in ensuring the illumination of algal cells, complex structure, etc., to expand production scale and improve light energy. Utilization rate, the effect of increasing production

Active Publication Date: 2011-11-30
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of device with hollow baffles can strengthen the mixing of the culture solution, it has a complex structure and high manufacturing costs, and the mixing of algae cells is disordered, so it is difficult to ensure that the algae cells are exposed to a specific period of light.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Spirulina was cultivated outdoors under natural light. The plate-type photobioreactor of the culture system constructed is placed horizontally, and the manufacturing material is a plexiglass plate, the thickness of the upper and lower panels is 2mm, the thickness of the end panel 14 and the rib plate 6 are both 2mm, and the length of the rib plate 6 is 80cm. The size of the plate-type photobioreactor is: 1m in length, 1.022m in width, and 16mm between the inner surfaces of the upper and lower panels. image 3 ). Adhere to the inner side of the upper panel and the lower panel with a rectangular cross-section baffle 3 made of plexiglass plate material. The length direction of the upper baffle and the lower baffle is at an angle of 45 degrees to the flow direction of the culture solution, and the direction of the angle is opposite. , the length of the baffle is 14.1cm (the projected length of the baffle along the width direction of the culture fluid channel is 100% of the...

Embodiment 2

[0070] Spirulina was cultivated under natural light. Other conditions are the same as in Example 1, except that the height of the baffles put in is 2 mm, the thickness is 1 mm, the distance between the baffles along the length direction of the flow channel is 30 mm, and the gap between the length direction of the baffles and the flow direction of the culture solution is 30 mm. The angle size is 70 degrees, the projected length of the baffle along the width direction of the culture fluid channel is 50% of the width of the channel, 25 upper baffles and 25 lower baffles are installed in each channel, and the area between the baffles covers about 74% of the effective illuminated surface of the photobioreactor).

[0071] The cultivation process lasted for 30 days, and the area yield of Spirulina was about 34g / m 2 .d. Higher than the area productivity (25g / mw) of comparative example 1 under the same culture condition in the unbaffled plate type photobioreactor 2 .q), indicating t...

Embodiment 3

[0073] Spirulina was cultivated under natural light. Other conditions are the same as in Example 1, except that the height of the baffles put in is 6 mm, the thickness is 3 mm, the distance between the baffles along the length direction of the flow channel is 100 mm, and the length direction of the baffles is 20 mm from the flow direction of the culture solution. degree angle. 6 upper baffles and 6 lower baffles are installed in each flow channel, and the area between the baffles covers about 78% of the effective light surface of the photobioreactor).

[0074] The cultivation process lasted for 30 days, and the area yield of Spirulina was about 33g / m 2 .d. Higher than the area productivity (25g / m2) of Comparative Example 1 under the same culture conditions in the non-baffle plate type photobioreaction 2 .d), indicating that the light energy utilization rate of the algae cells is significantly improved.

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Abstract

The invention relates to a plate-type photobioreactor, which comprises at least one flow channel, wherein each flow channel comprises at least 2 upper baffle plates, which are arranged on the inner wall face on a light receiving side, and at least 2 lower baffle plates, which are arranged on the inner wall face on a backlight side; and the included angles of the length directions of the upper and lower baffle plates and the flowing direction of culture solution are 20 to 70 DEG and are opposite. The plate-type photobioreactor has a specific internal structure, allow microalgae cells to move back and froth between the bright and dark areas in the photobioreactor, and give play to the 'flash effect' of the microalgae cells, thereby improving the light energy utilization and microalgae cells yield of the microalgae large-scale culture. The plate-type photobioreactor disclosed by the invention is suitable for large-scale culture of various microalgae cells.

Description

technical field [0001] The invention relates to a plate-type photobioreactor, in particular to a plate-type photobioreactor with a special internal structure. Background technique [0002] Microalgae cells are rich in amino acids, proteins, vitamins, unsaturated fatty acids and other high value-added biological substances, and have become an important source of materials in the fields of human food, medicine, dyes, and fine chemicals. At present, with the depletion of fossil energy such as petroleum and coal, people have paid great attention to biorefinery based on biomass. As an important renewable energy source, microalgae can provide a large amount of biomass (oil, starch, cellulose) , has broad application prospects in the field of biorefinery. [0003] The large-scale cultivation of microalgae is mainly divided into two methods: open cultivation and closed cultivation. Open culture is the earliest developed and most commonly used method. At present, countries around t...

Claims

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Application Information

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IPC IPC(8): C12M1/42C12R1/89
CPCC12M21/02C12M27/20C12M23/04
Inventor 丛威张庆华薛升长
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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