Microalgae continuous reaping apparatus and method

Abstract

The invention discloses microalgae continuous reaping apparatus and method and belongs to the technical field of microalgae reaping. The apparatus includes a microalgae culture box, wherein an oxygenrecovery device is arranged on the left end of the top of the microalgae culture box and a culture solution supply box is arranged on the right end of the top of the same. A submarine light is disposed on the left wall of the inner chamber of the microalgae culture box. An aeration device is disposed on the bottom of the inner chamber of the microalgae culture box. A microalgae reaping pipe is arranged on the outer wall of the right side of the microalgae culture box. The other end of the microalgae reaping pipe is disposed on the top of the inner chamber of the microalgae culture box. A culture liquid recovery pipe is disposed on the left end of the bottom of the microalgae culture box. The apparatus can deliver the culture solution to the microalgae culture box through a spray disk so that the culture solution can be sprayed uniformly. By means of the aeration apparatus on the bottom of the microalgae culture box, CO2 can be supplied to the microalgae culture box and separation of dissolved oxygen from the culture solution is promoted. There are two groups of filter screens in the inner chamber of a microalgae filter box, so that purity of the reaped microalgae is increased.

Description

technical field [0001] The invention relates to the technical field of microalgae harvesting, in particular to a microalgae continuous harvesting device and method. Background technique [0002] Microalgae are a kind of autotrophic plants widely distributed in land and ocean, rich in nutrients and high in photosynthetic utilization. The polysaccharides, proteins, pigments, etc. produced by cell metabolism make them useful in the fields of food, medicine, genetic engineering, and liquid fuels. Very good development prospects. The individual sizes of algae vary greatly, and among them, the microalgae group whose shape can only be distinguished under a microscope is called microalgae (microalgae), so microalgae is not a taxonomic name. [0003] In the prior art, there are following deficiencies in microalgae harvesting: [0004] 1. The harvesting process of microalgae is cumbersome, and the harvesting efficiency is low, and the professional harvesting equipment is more compli...

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Problems solved by technology

[0004] 1. The harvesting process of microalgae is cumbersome, and the harvesting efficiency is low, and the professional harvesting equipment is more complicated, and it is easy to pollute the culture medium during the harvesting process;

[0005] 2. Use the stirring blade to increase the fluidity of the microalgae in the culture tank, which will cause the microalgae to be broken by the shear force generated by the stirring, and the microalgae cannot be continuously cultivated, and the culture medium cannot be recycled, resulting in a serious waste of resources;

[0006] 3. The cultivation conditions of the microalgae cultivation device are not easy to control, and it is impossible to receive light on rainy or cloudy days. Changes in weather and environment will affect microalgae. Therefore, we propose a continuous harvesting device and method for microalgae

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