Solar spectral photosynthetic bioreactor system for culturing microalgae in high density

Abstract

The invention discloses a solar spectral photosynthetic bioreactor system for culturing microalgae in high density, which comprises a photosynthetic bioreactor, a solar energy collector, light-guide fibers, a light distribution device arranged in the photosynthetic bioreactor, a residual gas absorption device and a culture solution separation recovery device, wherein the residual gas absorption device and the culture solution separation recovery device are respectively connected with the photosynthetic bioreactor. One end of the light distribution device is connected with a spectral light-intensity adjustment device arranged on the photosynthetic bioreactor; the spectral light-intensity adjustment device is connected to the solar energy collector through the light-guide fibers; and a gas distribution device is arranged between the position below the light distribution device and the bottom of the photosynthetic bioreactor and is connected with the output end of a gas mixing device. The system can effectively improve the utilization ratio of solar energy, reduce the consumption of external electrical energy, solve the problems of solar energy utilization, such as intermittence, instability difficult collection, and ensure the continuous and stable culture of microalgae.

Description

technical field [0001] The invention relates to the technical field of microalgae cultivation biology, in particular to a high-density microalgae cultivation photobioreactor system working in a solar photoelectric and thermal complementary manner. Background technique [0002] With the increasing pressure of global resource shortage, the development and utilization of marine algae will be an important way to solve human food and energy sources in the long run. Algae are not only rich in protein, fat and carbohydrates, which are three essential substances for human beings, but also contain various amino acids, vitamins, antibiotics, high unsaturated fatty acids and other biologically active substances, which can be used as food, medicine, An important source of raw materials for biochemical reagents, fine chemical products, fuels and other materials. With the continuous deepening of human understanding of microalgae, the development and development of new high-efficiency pho...

AI Technical Summary

Problems solved by technology

The use of outdoor lighting is easily affected by external environmental light, temperature and other factors, which is not conducive to the control of the microalgae cultivation process; the use of artificial light sources, although the reactor works indoors, avoids the influence of environmental factors, but artificial light sources consume a lot of power, which is not conducive to Controlling the Cost of Microalgae Large-Scale Culture Production

[0004] Solar energy is the most abundant clean energy on the earth. The energy on the earth, including fossil fuels, comes from the sun. The annual solar energy incident on the surface of the earth is about 5.7x1024J, which is about 10,000 times the energy used by human beings. The earth intercepts every year Solar radiant energy is equivalent to 1500 times the current global electric energy, but solar energy has problems such as low energy density, intermittent and instability, and difficulty in collection, which restricts its large-scale utilization. In addition, the utilization of solar energy requires an effective carrier , it is necessary to convert solar energy into an energy that can be stored, transported and continuously output

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