Microalgae culture device

Abstract

The invention discloses a microalgae culture device comprising a closed reactor assembly, two negative pressure liquid storage tanks, a control electric cabinet, a simple air purification device, andan auxiliary water pump. The microalgae culture device achieves the purpose of negative pressure high-efficiency driving through alternate liquid storage of the two negative pressure liquid storage tanks; the device not only overcomes the defect that the conventional open culture cannot realize sterile culture, but also has the advantages of smaller shear force and better culture solution disturbance effect in the culture process compared with closed culture devices driven in other ways, less damages to algae cells, capability of obtaining higher density algae liquid, low energy consumption and the like.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a microalgae cultivation device. Background technique [0002] Microalgae are photoautotrophic microorganisms with small size and simple structure, which can use sunlight, CO 2 and other nutrients to proliferate and grow rapidly and synthesize a large amount of organic matter in the cells. microalgae on CO 2 Its conversion efficiency is 10-50 times that of terrestrial higher plants, so it has great significance for energy conversion and carbon cycle in the earth's ecological environment. At the same time, microalgae biomass is rich in oils, hydrocarbons and other high value-added bioactive substances, which are used in the preparation of liquid fuels, the production of medicines, food and animal feed, and CO 2 Fixed and other aspects have broad application prospects. Despite many advantages, the large-scale cultivation of microalgae is still one of the main reasons hindering the ...

AI Technical Summary

Problems solved by technology

Among them, the pipe-type photobioreactor has a high specific surface area, and the hydraulic circulation system is simple, so it is the most widely used. There are certain problems in pipe cleaning

In recent years, a large number of improvement studies on pipeline reactors have been carried out. For example, CN 105505765A discloses a microalgae cultivation system, which includes a culture solution tank, a first water pump, a first photobioreactor, a second water pump, Aeration tanks, tubular photobioreactors and tubular centrifuges have the characteristics of high cultivation efficiency, high quality and easy control of cultivation conditions. However, the disadvantage of this cultivation system is that the process is complicated and the energy consumption is large

In order to save energy consumption, Miao Jian applied for a patent "A Photosynthetic Bioreactor System for Industrial Production" (CN 1475558A), which discloses a closed-pipe microalgae industrial production photosynthetic bioreactor system, which effectively solves the problem of In the process of microalgae culture, it can effectively eliminate the dissolved oxygen accumulated in the pipeline, and at the same time, the energy consumption is low, and only the power consumption of the infusion pump is used. However, the shear force generated by the power system in the reactor system will affect the algae cells. some degree of damage

[0005] So how to design a microalgae culture device, how to solve the problem that the traditional open culture cannot be cultured aseptically and the shear force generated by the power system can damage the algae cells

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