Pipeline-type photobioreactor for scale culture of microalgae

Abstract

The invention provides a pipeline-type photobioreactor for scale culture of microalgae. The pipeline-type photobioreactor comprises a gas exchange tank (1), a process pump (8), a CO2 replenishing system and a photosynthesis pipeline array (9). According to the pipeline-type photobioreactor, the specific surface area of the reactor is effectively increased, the contradiction between increase of volume of a unit area of culture solution and attenuation of illumination of the culture solution in an existing pipeline reactor is effectively solved, the light energy utilization rate of the microalgae and the yield can be effectively increased, and the purposes of rapid, large-scale and high-density culture of the microalgae are achieved.

Description

technical field [0001] The invention relates to the field of microalgae cultivation engineering, in particular to a pipeline photobioreactor for microalgae cultivation on a large scale. Background technique [0002] Microalgae are the main producers of natural water bodies, and play an important role in global energy conversion and carbon cycle. The CO fixed by microalgae photosynthesis every year 2 About the world's CO 2 More than 40% of the fixed amount. At the same time, microalgae cells are rich in high value-added bioactive substances such as proteins, pigments, and various unsaturated fatty acids, and have gradually become an important source of materials in the fields of health food, medicine, and fine chemicals. With the depletion of traditional fossil energy (petroleum, coal, etc.), microalgae has received great attention as a renewable energy source (oil, etc.), and the microalgae industry, which has important social and environmental effects, has shown broad app...

AI Technical Summary

Problems solved by technology

[0005] The current pipe reactor design is mostly circular pipes, which have defects in practical applications. Enlarging the pipe radius within a certain size range (diameter ≤ 14cm) can ensure sufficient light energy injection and maintain micro The light energy supply required for the normal growth of algae can achieve the maximum light energy utilization rate of microalgae; but after exceeding this radius range, due to the attenuation of the amount of light with the radius of the pipe and the shading effect of the microalgae itself, the light energy of the pipe will be greatly reduced. The utilization rate directly limits the normal growth of microalgae and reduces the yield

[0006] Pipeline reactors of other shapes, such as rectangles and polygons, directly affect the connection between pipes, which increases the difficulty of large-scale expansion of culture volume, and is not suitable for industrial production

Images