Method for culturing microalgae

A technology of microalgae and algae liquid, applied in the field of cultivating microalgae, can solve the problems of unreasonable economy, cultivation, complex multi-layer pallet structure, etc., and achieve the effect of improving the breeding efficiency and enhancing the analysis effect.

Active Publication Date: 2010-10-27
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the reactor is very efficient, the structure of the multi-layer pallet is very complicated, which is not conducive to large-scale scale-up production
[0014] From the analysis of existing technologies, it can be seen that the main obstacles hindering the application of closed microalgae photobioreactors to large-scale industrial production are the complex structure,

Method used

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  • Method for culturing microalgae
  • Method for culturing microalgae
  • Method for culturing microalgae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] This example illustrates a microalgae cultivation device and cultivation method on a scale of 1 ton of algae liquid.

[0066] Such as figure 1 The microalgae culture device shown. The algae liquid storage unit 1 is a box made of transparent glass, with a length of 3000mm, a width of 500mm, and a height of 1000mm. The four sides of the algae liquid storage unit 1 are pasted with a plastic film with a light transmittance of 50%. Face 12 is transparent glass. The algae liquid diversion surface 2 is transparent glass with a plastic film with a light transmittance of 50%, which divides the algae liquid storage unit into two areas, the upper bright (light area) and the lower dark (dark area). The height of one end of the surface 2 is 800mm, and the height of the other end is 700mm, and there are grooves and screen holes 10 for the algae liquid to flow down. The algae liquid delivery device 3 is a diaphragm pump. Aeration device 6 is installed at the bottom of the algae li...

Embodiment 2

[0069] This example illustrates a microalgae cultivation device and cultivation method on a scale of 10 t of algae liquid.

[0070] Such as figure 2 In the microalgae breeding device shown, the algae liquid storage unit is a box with an open top, which is made of reinforced concrete structure and is waterproofed. It is 3m long, 5m wide, and 1m high. Flow Noodles 2 ( image 3 Not all are marked in the middle), and the algae liquid storage unit is divided into upper bright (light area) and lower dark (dark area) two regions, and the algae liquid diversion surface 2 is pasted with a plastic film with a light transmittance of 50%. The algae liquid conveying device 3 is a diaphragm pump, and the algae liquid diversion surface 2 is located at one end of the algae liquid outlet of the algae liquid conveying device 3. The height at one end is 800 mm, and the height at the other end is 700 mm. Sieve hole 10, aeration device 6 is installed at the bottom of the algae liquid storage un...

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Abstract

The invention relates to a method for culturing microalgae. The method is performed in a closed system or an open system with a light area and a dark area, wherein the light area is positioned above the dark area. The method comprises the following steps of: a) putting algae liquid which contains microalgae, water and necessary nutrient substances into the system; b) lifting the algae liquid in the dark area to the light area to establish flow, making the algae liquid exposed under the sun, making the algae liquid fall into the dark area under the action of gravity after the algae liquid finishes flow in the light area, and making the algae liquid circulate between the dark area and the light area; and c) regulating and controlling the ingredients of the algae liquid and the state of the system to make the system suitable for rapid growth and reproduction of the microalgae. A device provided by the invention can be used for culturing the microalgae with large scale, low cost and high efficiency.

Description

technical field [0001] The invention relates to a method for cultivating microalgae. Background technique [0002] Microalgae are a class of low-level plants that grow in water with a wide variety and are extremely widely distributed. It is a cell factory driven by sunlight, and absorbs CO through efficient photosynthesis of microalgae cells. 2 , convert light energy into chemical energy of carbohydrates such as fat or starch, and release O 2 . The use of microalgae to produce bioenergy and chemicals can simultaneously achieve "replacing fossil energy and reducing CO 2 The three purposes of "emission, purification of waste gas and sewage". The advantages of "microalgae biotechnology" lie in the following aspects: ① Microalgae is the original plant with the highest photosynthetic efficiency. Compared with crops, the yield per unit area is dozens of times higher Microalgae is also the fastest-growing plant in nature, usually within 24 hours, the biomass contained in microal...

Claims

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Application Information

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IPC IPC(8): C12N1/12C12R1/89
CPCC12M21/02C12M23/20
Inventor 荣峻峰黄绪耕周旭华
Owner CHINA PETROLEUM & CHEM CORP
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