Float-process microalgae culture system

Abstract

The invention relates to a float-process microalgae culture system. The float-process microalgae culture system comprises a culture unit, a buffering unit, a circulation unit and an aeration unit, wherein the culture unit comprises a plurality of flexible transparent cylinder bands which are arranged almost horizontally and are used for accommodating culture liquid and microalgae, a correspondingfirst base plate is arranged on the lower side of an inlet end of each flexible transparent cylinder band, a corresponding second base plate is arranged on the lower side of an output end of each flexible transparent cylinder band, the first base plates are higher than the second base plates, and disturbance devices are arranged between the first base plates and the second base plates; the buffering unit comprises a container, and the container is used for receiving the culture liquid and the microalgae which are discharged from the outlet ends of the flexible transparent cylinder bands; the circulation unit is used for transferring the culture liquid and the microalgae from the buffering unit to the inlet ends of the flexible transparent cylinder bands; and the aeration unit is used for inputting preset gas to the culture liquid.

Description

technical field [0001] The invention relates to the field of microalgae cultivation, in particular to a system for cultivating microalgae by "float method". Background technique [0002] Microalgae are the oldest organisms on Earth and one of the most important organisms on Earth today, fixing 40% of the carbon dioxide on Earth. Microalgae grow rapidly, have high photosynthetic efficiency, are rich in protein, rich in oil and other nutrients, and can be used for health care products, aquatic bait, feed, etc., and can also be used for water pollution control. Through large-scale cultivation of microalgae, it is expected to gradually alleviate my country's dependence on imports of oil, soybeans, fish meal feed, etc., and also help reduce carbon emissions. [0003] At present, there are mainly two types of methods for large-scale cultivation of microalgae. One is closed cultivation, which is cultured under basic artificial control of temperature, light intensity, photoperiod a...

AI Technical Summary

Problems solved by technology

The system needs to specially set up overflow weirs to increase the amount of construction; for large-scale farming, the span of the cover film is large, and the transmission device is difficult to install. The large-area cover film is easily affected by natural wind, and the fixation is not good. At the same time, the thickness of the liquid layer in this system is difficult to adjust, and it is not convenient to adjust in real time with the growth of microalgae

In addition, the storage and site recovery of the system are not very convenient in seasons that are not suitable for algae cultivation or after the cultivation is completed

Invention patent application CN102408983A discloses a bag-shaped photobioreactor, which mainly heat-seals an intermittent connection line on the bag for the dispersion of aeration gas. Heat-sealing of bags requires cumbersome manual operations and is difficult to apply on a large scale

Invention patent application CN102260629A discloses a plate-type photobioreactor, which has the defects of many welding points, complex structure, and easy breakage. As an improvement, invention patent application CN 105219616 A discloses a soft plate-type photobioreactor, which improves the performance of CN102260629A The anti-crack performance of the patented device, but there are still shortcomings such as many welding points, complex structure, difficult production, and high cost.

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