Micro algae breeding method

Abstract

The invention discloses a micro algae breeding method, and relates to the technical field of micro algae breeding. In order to solve the problem of low yield of micro algae, the micro algae breeding method comprises the following steps: breeding the micro algae in a culture liquid; putting an algae liquid formed by the micro algae and the culture liquid into a breeding container; detecting a current active value of the micro algae in the breeding container; comparing the current active value with the preset reference active value of the micro algae; recovering partial or all algae liquid from the breeding container when the current active value is smaller than the reference active value; and adding the algae liquid, of which the active value of the micro algae is greater than the reference active value, to the breeding container, so that the mean active value of the micro algae in the breeding container is greater than or equal to the reference active value; and the algae liquid which is newly added to the breeding container is equal to the algae liquid which is recovered from the breeding container in volume and concentration. The micro algae breeding method disclosed by the invention is used for improving the yield of the micro algae.

Description

technical field [0001] The invention relates to the technical field of microalgae cultivation, in particular to a microalgae cultivation method. Background technique [0002] With the depletion of fossil fuels such as oil and coal, and the environmental pollution caused by the use of fossil fuels, researchers are prompted to develop new clean energy to replace fossil fuels. Microalgae is a type of phytoplankton with a short growth cycle and high photosynthetic efficiency. Microalgae use photosynthesis to convert light energy, carbon dioxide and water into chemical energy and release a large amount of oxygen. Therefore, microalgae are used as raw materials. Microalgae biodiesel and microalgae biofuel can replace fossil fuels such as petroleum and coal, thus effectively solving the above problems. [0003] At present, there are two types of large-scale industrial culture of microalgae: open culture mode and closed culture mode. Among them, the typical open culture mode usuall...

AI Technical Summary

Problems solved by technology

[0004] However, the inventors of the present application found in the experimental process of microalgae cultivation that no matter whether it is an open culture mode or a closed culture mode, when the microalgae is irradiated by strong light, the photochemical system of the microalgae will be damaged, and a large amount of light will cause damage to the microalgae. Not fully utilized, resulting in reduced light use efficiency, which in turn reduces the production capacity of microalgae

Images