High-efficiency and low-cost intermittent mixed microalgae culture method

A microalgae culture, intermittent technology, applied in the direction of biochemical equipment and methods, single-cell algae, enzymology/microbiology devices, etc., can solve the problems of not confirming the efficient growth of microalgae, not reducing the cost of mixing during the day, and achieving The effect of reducing the cost of mixing operations

Inactive Publication Date: 2020-08-07
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method did not reduce the daytime mixing cost, which is the main mixing cost, and these studies did not determine whether stop mixing or intermittent mixing methods can support efficient growth of microalgae during the day

Method used

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  • High-efficiency and low-cost intermittent mixed microalgae culture method
  • High-efficiency and low-cost intermittent mixed microalgae culture method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Effects of Intermittent Aeration and Mixing on the Growth of Filamentosa tenatum under Continuous Artificial Illumination

[0026] First prepare the following medium: 25.2g L -1 NaHCO 3 , 2.5 g L -1 NaNO 3 , 0.04g L -1 CaCl 2 2H 2 O, 1.0 g L -1 K 2 SO 4 , 0.5g L -1 K 2 HPO 4 , 0.2g L -1 MgSO 4 ·7H 2 O, 0.01gL -1 FeSO 4 ·7H 2 O, 1.979 g L - 1 MoCl 2 4H 2 O, 3.092 g L -1 h 3 BO 3 , 0.484g L -1 NaMo 4 2H 2 O, 0.23 g L -1 ZnSO 4 ·7H 2 O, 0.183 g L - 1 NaVO 3 , 0.048g L -1 CoCl 2 ·6H 2 O, 0.2g L-1CuSO 4 ·5H 2 O.

[0027] Inject the above-mentioned 5 parts of medium into a bubbling photobioreactor 1 with a height of 30 cm and a diameter of 5.0 cm, and an air stone connected to a bubbling column is arranged at the bottom of the reactor to provide the reactor 1 with mixed and introduced air Rate 200ml L -1 . The ventilation pipes 5 of the above four reactors 1 are respectively connected to one end of the solenoid valve 2, and t...

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Abstract

The invention discloses a high-efficiency and low-cost intermittent mixed microalgae culture method. The method comprises the following steps of: (1) putting a microalgae culture medium into a microalgae culture system containing a mixing time control device, and inoculating microalgae into the culture medium; wherein the microalgae culture system containing the mixing time control device is characterized in that the mixing time control device is connected to a mixing device of the microalgae culture system; and (2) operating the microalgae culture system according to a continuous operation mode of time interval of mixing and stopping mixing, and carrying out microalgae culture. The invention provides the intermittent mixed microalgae culture method for continuous repeated operation of mixing and mixing stop. The method reduces the mixing operation cost through little mixing operation time. More importantly, the method can maintain efficient production of microalgae while reducing theenergy consumption of mixing operation, therefore microalgae can be efficiently cultured at low cost.

Description

technical field [0001] The invention relates to the technical field of microalgae cultivation, in particular to a high-efficiency and low-cost intermittent mixed microalgae cultivation method. Background technique [0002] Microalgae is a general term for a class of tiny photosynthetic microorganisms. Compared with terrestrial plants, it has the advantages of fast growth, high photosynthetic efficiency, high carbon fixation efficiency, rich nutrition, and its cultivation does not occupy valuable arable land resources. Due to the above advantages, microalgae have great application potential in food, aquatic animal feed, bioenergy, sewage treatment, carbon emission reduction, etc. However, due to the high production cost, it is currently difficult to apply large-scale industrialization. [0003] In the process of microalgae cultivation, mixing is an important factor affecting the growth of microalgae, because it has the following important functions: 1) to promote mass transfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12C12M1/04C12M1/00
CPCC12M21/02C12M29/14C12N1/12
Inventor 朱陈霸迟占有
Owner DALIAN UNIV OF TECH
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