Flat plate photobioreactor

Abstract

The invention provides a flat plate photobioreactor, which comprises a reactor main body and at least one multifunctional coiled pipe which is arranged in the reactor main body. By virtue of the multifunctional coiled pipe, the circulating flow of algae liquid in an optical direction is achieved, so that the effective utilization of a flash effect is achieved; gas can shoot into the algae liquid at different heights, so that gas-liquid mass transfer becomes more efficient and temperature control and dissolved oxygen repelling are conducted more efficiently; in addition, on the basis of a relatively strong scouring effect of a jet flow from the coiled pipe to a sidewall face on the wall face, the attachment of algae on the inner wall of the reactor and on the coiled pipe can be effectively relieved and cleaning times can be reduced; and by combining internal and external light sources, the purpose of enlarging an individual reactor body can be achieved by adding the multifunctional coiled pipes, so that the the limitation that the flat plate photobioreactor can be enlarged just by adding reactor units is overcome, which is conducive to the implementation of industrialization.

Description

technical field [0001] The present invention relates to CO 2 The field of bioengineering technology for immobilization and algae cultivation, in particular, relates to a plate-type photobioreactor with efficient multiphase mixing. Background technique [0002] Algae have extremely high light and nutrient utilization efficiency, and can convert water and carbon dioxide into high-value organic compounds such as sugars, pigments, proteins, and fats, which can be used to make food, medicine, and nutritional products. In addition, the use of microalgae to treat waste water and waste gas and obtain biofuels also has broad prospects. The above application fields all require large-scale photobioreactors for large-scale cultivation. [0003] At present, industrial-scale photobioreactors are generally open cultured in runway pools. However, open culture has many disadvantages: 1) low utilization of light and carbon dioxide, 2) difficult to control culture conditions, 3) production ...

AI Technical Summary

Problems solved by technology

However, open culture has many disadvantages: 1) light and carbon dioxide utilization rate is low, 2) culture conditions are difficult to control, 3) production is easily restricted by seasons, 4) culture medium is easily polluted and diluted by rainwater or evaporated in large quantities

However, the multi-layer baffle forms greater resistance to the rising algae liquid and increases energy consumption. At the same time, the complex internal structure is not conducive to cleaning and amplification. The similar Chinese patent CN102260629 also has the above problems.

The above-mentioned flat-plate photobioreactors are realized by adding reactor units for larger-scale culture systems, and the volume of the largest reactor unit is less than 300L, which greatly increases the manufacturing cost

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