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Soft plate type photobioreactor

A technology of photobioreactor and reactor, which is applied in the direction of bioreactor/fermenter combination, specific-purpose bioreactor/fermenter, biochemical instrument, etc. It can solve the problems of easy breakage and difference in the flow rate of culture medium, etc. To achieve the effect of optimizing the overall structure

Active Publication Date: 2016-01-06
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

[0008] The purpose of the present invention is to address the above problems, to provide a soft plate photobioreactor with internal reinforcement, multi-channel parallel connection, and consistent flow velocity of each flow channel, so as to solve the soft plate photobioreactor described in patent CN201010193837.4 There are problems such as the easy rupture of the device and the difference in the flow rate of the culture solution in different flow channels.

Method used

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Examples

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Embodiment 1

[0068] Spirulina was cultivated outdoors under natural light. The constructed culture system comprises a soft plate photobioreactor 18, a culture solution storage device 16, a culture solution delivery device 17 (commercially available diaphragm pump), a gas-liquid exchange device 19 and CO 2 Supplementary device 20, connected as Image 6 shown.

[0069] The structure of the soft plate photobioreactor 18 is as follows: figure 1shown. The soft plate photobioreactor is laid flat on the ground, and the main material is soft light-transmitting polyethylene film. The soft plate photobioreactor is 200cm long and 96cm wide, and is divided into 16 parallel flow channels; the thickness of the main film 5 is 0.5mm, the thickness of the film at 6 ribs is 0.75mm, and the length of the rib 6 is 140cm; The cross-sectional area ratio of the largest and smallest parts of the liquid inlet port 10 and the reactor culture solution outlet port 11 is 2:1; the upper baffle 3 and the lower baff...

Embodiment 2

[0078] The cultivation of spirulina was carried out under natural light outdoors, and the other conditions were the same as in Example 1, except that the thickness of the 6 parts of the ribs of the photobioreactor was twice that of other parts.

[0079] The cultivation process lasted for 60 days, the photobioreactor still operated normally, and the area yield of Spirulina was about 39g / m 2 .d, the service life of the photobioreactor is much higher than that of the photobioreactor in Comparative Example 1; the area yield is higher than that in the photobioreactor in Comparative Example 1. The service life of the photobioreactor of the invention and the utilization rate of light energy when used for cultivating microalgae are obviously improved.

Embodiment 3

[0081] Carry out the cultivation of spirulina under outdoor natural light, other conditions are the same as embodiment 1, difference is that in the photobioreactor, reactor culture solution inlet mouth 10 and reactor culture solution outlet mouth 11 maximum and minimum sectional areas The ratio is 4:1.

[0082] The cultivation process lasted for 30 days, the photobioreactor still operated normally, and the area yield of Spirulina was about 37g / m 2 .d, the service life of the photobioreactor is much higher than that of the photobioreactor in Comparative Example 1; the area yield is higher than that in the photobioreactor in Comparative Example 1. The service life of the photobioreactor of the invention and the utilization rate of light energy when used for cultivating microalgae are obviously improved.

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Abstract

The invention relates to the field of microalgae culture photobioreactors, in particular to a soft plate type photobioreactor. The soft plate type photobioreactor comprises flow passages, a reactor culture solution inlet (1), a reactor culture solution outlet (2), a body film (5), rib plates (6) and pulling strips (7). The flow passages are partitioned by the rib plates (6); the reactor culture solution inlet (1) and flow passage culture solution inlets (8) form a reactor culture solution inlet cavity (10), and the reactor culture solution outlet (2) and flow passage culture solution inlets (9) form a reactor culture solution outlet cavity (11); the pulling strips (7) are arranged in the reactor culture solution inlet cavity (10) and / or the reactor culture solution outlet cavity (11). The soft plate type photobioreactor has the advantages that the integral structure of the photobioreactor is optimized; the service life of the soft plate type photobioreactor is prolonged; risks of breakage of the photobioreactor due to ageing, stress and the like are reduced.

Description

technical field [0001] The invention relates to the field of photobioreactors for cultivating microalgae, in particular, the invention relates to a soft plate photobioreactor with internal reinforcement and multi-channel parallel connection. Background technique [0002] With the depletion of fossil energy and the seriousness of environmental pollution, people began to look for new alternative energy. As an efficient use of light energy to convert H 2 O.CO 2 Microalgae are photoautotrophic single-celled organisms that convert inorganic salts into organic resources. Microalgae have the advantages of high oil content, short growth cycle, and high yield. They have received more and more attention worldwide and are considered to be a one of the most promising bioenergy feedstocks. In addition, microalgae also contain proteins, carbohydrates, polyunsaturated fatty acids and other biologically active substances necessary for humans. [0003] The prerequisite for the developmen...

Claims

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Application Information

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IPC IPC(8): C12M1/00
Inventor 丛威颜成虎张庆华花凯
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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