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A flat-plate photobioreactor for rapid cultivation of microalgae

A technology of photobioreactor and reactor, which is applied in the direction of photobioreactor, specific-purpose bioreactor/fermenter, bioreactor/fermenter combination, etc., can solve the problem of less resource development and utilization, and achieve increased Dwell time, reduced space requirements, small footprint effect

Inactive Publication Date: 2016-08-24
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although there are many microalgae in nature, they are rarely developed and utilized as resources, which requires the purification and scale of algae species

Method used

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  • A flat-plate photobioreactor for rapid cultivation of microalgae
  • A flat-plate photobioreactor for rapid cultivation of microalgae
  • A flat-plate photobioreactor for rapid cultivation of microalgae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The plate photobioreactor is used to cultivate energy microalgae, and the inclination angle of the partition is set to zero, that is, the partition is set horizontally, and the comb-shaped baffle is not provided. This embodiment still represents an obvious improvement compared to the reactor in the prior art.

[0044] Scenedesmus oblique, scientific name Scenedesmus obliquus , Scenedesmus family, Scenedesmus genus, widely distributed in freshwater waters at home and abroad. Its morphological characteristics: the fixed group is flat, composed of 2, 4, 8 cells, usually 4 cells, the group cells are arranged in a straight line or slightly sitting alternately; the cells are spindle-shaped, the upper and lower ends are gradually tapered, and the groups are two The free surface of the side cells is sometimes concave, sometimes protruding, and the cell wall is smooth. The width of the group of 4 cells is 12-34 microns, the length of the cells is 10-21 microns, and the width i...

Embodiment 2

[0049] Use a 2.5° flat photobioreactor to cultivate energy microalgae, set the inclination angle of the partition to 2.5°, and do not set the comb-shaped baffle. Compared with the reactor in the prior art, this embodiment represents an obvious improvement, and compared with Example 1, it also has a more significant technical effect.

[0050] Scenedesmus oblique, scientific name Scenedesmus obliquus , Scenedesmus family, Scenedesmus genus, widely distributed in freshwater waters at home and abroad. Its morphological characteristics: the fixed group is flat, composed of 2, 4, 8 cells, usually 4 cells, the group cells are arranged in a straight line or slightly sitting alternately; the cells are spindle-shaped, the upper and lower ends are gradually tapered, and the groups are two The free surface of the side cells is sometimes concave, sometimes protruding, and the cell wall is smooth. The width of the group of 4 cells is 12-34 microns, the length of the cells is 10-21 microns...

Embodiment 3

[0055] Use a 5° flat photobioreactor to cultivate energy microalgae, set the inclination angle of the partition to 5°, and set the comb-shaped baffle. Compared with Example 2, this embodiment also has more significant technical effects.

[0056] Scenedesmus oblique, scientific name Scenedesmus obliquus , Scenedesmus family, Scenedesmus genus, widely distributed in freshwater waters at home and abroad. Its morphological characteristics: the fixed group is flat, composed of 2, 4, 8 cells, usually 4 cells, the group cells are arranged in a straight line or slightly sitting alternately; the cells are spindle-shaped, the upper and lower ends are gradually tapered, and the groups are two The free surface of the side cells is sometimes concave, sometimes protruding, and the cell wall is smooth. The width of the group of 4 cells is 12-34 microns, the length of the cells is 10-21 microns, and the width is 3-9 microns.

[0057] The algae was selected from Wuliangsuhai, Baotou City, I...

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Abstract

The invention relates to a device for industrialized cultivation of microalgae, in particular to an air-lift flat-plate photobioreactor. The reactor is made of glass, hollow and transparent, closed up and down, with exhaust in the upper part and liquid outlet in the lower part; there are detachable and angled partitions in the photobioreactor, and there are ventilation holes and drainage holes on the partitions , increasing the partition is beneficial to the utilization of CO2 by microalgae, and the angle is to make the gas move upwards at a relatively slow and uniform speed. The invention provides a clean and closed environment for microalgae, prevents the entry of external pollution, and has a light supplement system to further weaken the influence of natural conditions on production efficiency. The invention can be used for rapid and large-scale cultivation of microalgae, and has the characteristics of automatic circulation mixing, high utilization of light energy, good airtightness, convenient cleaning, small occupied area, easy popularization and the like.

Description

technical field [0001] The invention relates to a photobioreactor used in large-scale cultivation of microalgae, which belongs to a rapid large-scale cultivation device. Background technique [0002] With the increasing development of the economy, people's consumption of fossil fuels has increased, which not only consumes these non-renewable resources, but also emits a large amount of greenhouse gases into the environment. Oils and fats in microalgae undergo transesterification to produce fatty acid methyl esters, which are used as fossil fuel substitutes. Compared with other oil crops, microalgae have more advantages, such as wide distribution, less land resources required, no occupation of cultivated land resources, high photosynthesis efficiency, strong environmental adaptability, high yield, short growth cycle, and can grow in all seasons, etc. . Microalgae can not only provide biodiesel and consume greenhouse gases in the atmosphere, but also provide unsaturated fatty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/34C12M1/04C12M1/00C12R1/89
CPCC12M21/02C12M41/06C12M41/40
Inventor 季祥蔡禄刘凯华
Owner INNER MONGOLIA UNIV OF SCI & TECH
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