Microalgae cultivation system and method

Abstract

The invention discloses a microalgae cultivation system mainly comprising a microalgae pretreatment pond, a black heat absorption pad, a tubular membrane system and an algae liquid collecting and aftertreatment pond, wherein the microalgae pretreatment pond is used for adding nutritive salt and receiving algae seeds; the black heat absorption pad is paved below the tubular membrane system and used for absorbing solar energy to increase water temperature and reduce scattering and diffusion light; the tubular membrane system is composed of a plurality of tubular membranes, one end of the tubular membrane system is connected with a pump membrane connector, the other end of the tubular membrane system is an exhaust port, the pump membrane connector is used for connecting a water pump and the tubular membranes, the exhaust port is arranged at the tail ends of the tubular membranes, is formed by mutually nesting two rings and can be fixed, and the horizontal plane of the port is higher than the tubular membrane system so as to prevent algae liquid from overflowing; the algae liquid collecting and aftertreatment pond is used for the collection and the aftertreatment of the algae liquid; and the large-scale cultivation of the microalgae can be realized under an optimized physicochemical condition through slowly filling the algae liquid to be cultivated in the microalgae pretreatment pond into the tubular membrane system. The microalgae cultivation system has the characteristics of low cost, convenience and flexibility in use, simple structure, easiness in implementation, capability of meeting the requirement for large-scale industrial microalgae cultivation and the like.

Description

technical field

[0001] The invention relates to a microalgae cultivation system and a microalgae cultivation method, which belong to the fields of energy, medicine, health products and food. Background technique

[0002] With the rapid growth of the global economy, the rapid consumption of fossil energy, and the greenhouse effect caused by carbon dioxide emissions has become a major threat to human sustainable development, seeking new energy and reducing carbon dioxide emissions has become a hot issue of concern to all mankind. After years of exploration, scientists have discovered that microalgae is one of the ultimate solutions to the above problems. It can be used to produce different forms of biofuels, such as methane, biodiesel, aviation fuel, hydrogen and even bioethanol. On the other hand, the cultivation of microalgae fixes carbon dioxide through the photosynthesis of microalgae, and converts gaseous carbon into bio-organic carbon. Microalgae energy is a clea...

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