Inserting-plate type microalgae semi-dry solid adherent culture device

Abstract

The invention belongs to the field of microalgae culture, and particularly relates to an inserting-plate type microalgae semi-dry solid adherent culture device. The inserting-plate type microalgae semi-dry solid adherent culture device is characterized by comprising a supporting truss, culture plates, liquid distributing pipes, liquid collecting tanks and a liquid storage bottle, wherein the supporting truss is provided with at least one culture plate, and one liquid distributing pipe is arranged above each culture plate; the liquid collecting tank arranged on the supporting truss is arranged under each culture plate; all the liquid collecting tanks are communicated with the liquid storage bottle by the main liquid pipe; the bottom of the liquid storage bottle is respectively provided with a circulating pump and a carbon-supplementing gas distributing pipe communicated with a carbon dioxide source, and the circulating pump is communicated with a liquid distributing pipe by a pipeline; and each culture plate is provided with a picking scraper. The inserting-plate type microalgae semi-dry solid adherent culture device has the advantages that the yield in unit occupied area is effectively increased, the culture period is shortened, the water consumption for culture is greatly reduced, the cost and the operating cost of the culture device are reduced and the industrial culture on large scale is easily realized.

Description

Technical field [0001] The invention belongs to the field of microalgae cultivation, and specifically is a plate-inserting type microalgae semi-dry solid adherent culture device. Background technique [0002] Microalgae refers to aquatic algae capable of photosynthesis. Certain microalgae are rich in protein. Under certain conditions, certain microalgae can synthesize a large amount of secondary metabolites, such as oils, hydrocarbons, carotenoids, starch, polysaccharides, etc., which can be used to produce functional foods, food additives, and medical insurance. Key products, protein, feed, bioenergy such as biodiesel, aviation kerosene, etc. At the same time, due to the fast growth of microalgae and high photosynthetic efficiency, it absorbs a large amount of CO during photosynthetic growth. 2 Therefore, microalgae is considered to be the most promising biomass resource with excellent carbon sequestration and emission reduction effects. Globally, a biotechnology industry chai...

AI Technical Summary

Problems solved by technology

Due to the large water body, it has caused great difficulties to improve the efficiency of microalgae cultivation, reduce the cost and scale up the system: (1) The algae cells reflect and block the light, and the attenuation of light in the large water body is serious, and the algae cells cannot maximize Utilize sunlight; 2) The large water body consumes huge energy for maintaining the temperature of the culture system; 3) The stirring and mixing energy consumption of the large water body is high; 4) The large water body is too large to cause nutrients and CO 2 Large consumption; 5) The concentration of cells in large water bodies is low, and it is difficult to harvest algae cells; 6) The large volume, heavy weight, and high pressure brought by large water bodies are the reasons for realizing the large-scale traditional culture equipment and improving space utilization under the current technical conditions. formidable obstacle

For example, transparent materials such as glass, plexiglass, and plastic film used in traditional photobioreactors are not suitable for large-scale and space-height amplification due to their low mechanical strength. The energy utilization rate is low, and this is the most important direct constraint factor for the industrialization of large-scale cultivation of microalgae

[0005] It can be said that the culture methods used so far for microalgae have failed to take advantage of the advantages of high light efficiency and high biomass yield of microalgae, and the production cost is relatively high

Aiming at the low efficiency of microalgae large-scale cultivation, people have made many improvements in terms of equipment structure, carbon replenishment methods, and operation modes, but they have failed to greatly improve the photosynthetic utilization efficiency of microalgae, yield per unit area, and reduce costs. fundamental breakthrough

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