Outdoor temperature control microalgae photo-bioreaction system

Abstract

The invention discloses an outdoor temperature control microalgae photo-bioreaction system. In the system, a sealed light reactor tube is soaked in a temperature control water channel; the entire system is arranged in an outdoor environment; and the outdoor sunlight is used as light source and the temperature control water in the temperature control water channel is utilized to perform thermostatic regulation to the light reactor tube, thus the system can provide optimum environmental conditions for the growth of microalgae. In addition, the transmissivity of at least shading net can be adjusted and/or the water depth of the temperature control water channel can be changed to provide proper sunlight shielding ratio and further accurately regulate the light intensity of the light reactor tube.

Description

technical field [0001] The invention relates to an outdoor temperature-controlled microalgae photobiological reaction system, in particular to an outdoor temperature-controlled microalgae photobiological reaction system that uses the water temperature and water depth of a temperature-controlled water tank to regulate the temperature and light of the photoreaction tube and other growth conditions. biological response system. Background technique [0002] Since single-celled microalgae (algae) can fix carbon dioxide by means of photosynthesis and convert it into organic biomass (biomass), these biomasses can be used for applications in various technical fields, such as health food, food additives , biochemical pharmaceuticals, green energy, aquaculture, wastewater treatment, etc. The advantage of using microalgae for application is that microalgae can continuously convert and store carbon dioxide into biomass through photosynthesis through light energy, so it can meet the gre...

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Problems solved by technology

For example, U.S. Patent Application Publication No. 2005 / 0260553 discloses an outdoor closed photobioreactor. Compared with the indoor closed structure, although the outdoor closed structure is easy to increase the size of the module, due to its closed pipeline Located in an outdoor open environment, it is difficult to precisely control the growth conditions such as light and temperature

Furthermore, China Taiwan Patent No. 519548 discloses an outdoor open stream culture pond. Compared with the indoor open structure, this outdoor open structure is not only difficult to precisely control because the water body is exposed to the outside air. Growth conditions such as light and temperature are also more likely to be polluted by pollutants such as dust in the outdoor air, which causes difficulties in the purification of microalgae

In addition, if the cultivation depth of the water body is too deep or the concentration of microalgae is too high, the sunlight will only irradiate the microalgae in the upper layer of the culture tank, so that the microalgae in the lower layer cannot effectively absorb the light energy, thus easily reducing the cultivation efficiency , or cause the problem that the lower and upper layers of microalgae are in different growth stages and the derived biomass harvest rate is reduced

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