Pipeline photobioreactor for scale culture of microalgae

Abstract

The present invention belongs to the field of micro algae biotechnology, and is especially one kind of closed pipeline optical bioreactor plant for large scale culture of micro algae. The optical bioreactor plant includes transparent pipeline, gas analyzing unit, auxiliary pipe system, culture parameter sensing and controlling unit and economic micro algae. The present invention adopts large gas analyzing unit, parallel connected transparent pipes, mechanically drive water flow, mutual light blocking of cells, etc. to ensure the gas exchange inside the reactor for photosynthetic metabolism, reduce oxidation damage and light damage, replenish CO2 effectively, reduce the blocking of bubble column on water flow, and raise micro algae culturing efficiency and yield. In addition, the optical bioreactor plant may be established in place with sufficient sun light to utilize natural light effectively.

Description

technical field [0001] The invention belongs to the field of microalgae biotechnology, and relates to a pipeline photobioreactor for cultivating microalgae. The device is a closed system, which can effectively block the contamination of harmful organisms; at the same time, the algae liquid can be stirred effectively to avoid the existence of dead angles; in addition, the gas exchange is sufficient, which can effectively compensate for carbon dioxide and resolve dissolved oxygen. The device can be used for large-scale cultivation of microalgae, production of related products or provision of aquaculture bait. Background technique [0002] As an important part of primary productivity in the biosphere, microalgae are the only bait for the entire growth process (or specific developmental stages) of aquatic animals in the aquatic ecosystem or the bait for bait organisms. At the same time, microalgae are close to 50% of plant species, and have diversity, complexity and particulari...

AI Technical Summary

Problems solved by technology

As the length of the pipeline increases, the carbon dioxide in the algae fluid is quickly exhausted, which limits cell growth; at the same time, due to the photosynthesis of algae cells, a large amount of oxygen accumulates in the algae fluid, and the oxygen saturation is as high as 300%. In the past, serious oxidative damage was caused to the algae cells; in addition, the gas formed bubbles in the pipeline and gradually increased to form an air column, which hindered the normal flow of the algae

Therefore, the increase in pipeline length is limited, generally not longer than 150 meters, which greatly restricts the enlarged application of closed pipeline photobioreactors

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