Microalgae separation gradient magnetic stabilization fluidized bed device and microalgae harvesting method thereof

A fluidized-bed, magnetically stabilized technology, applied in microorganism-based methods, biological material sampling methods, and support/immobilization methods for microorganisms, etc. The effect of outflow probability, low magnetic field strength at inlet, and high magnetic field strength

Active Publication Date: 2020-01-14
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of low microalgae magnetic separation efficiency and low processing capacity in the prior art, and provide a microalgae separation gradient Magnetically stabilized fluidized bed device and method for harvesting microalgae

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  • Microalgae separation gradient magnetic stabilization fluidized bed device and microalgae harvesting method thereof

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Embodiment

[0033] Such as figure 1As shown, a microalgae separation gradient magnetically stable fluidized bed device includes a magnetic nano-media storage tank 1, a water storage tank 2, an algae liquid storage tank 3, a feed liquid pump 4, a four-way valve 5, and a gradient magnetically stable fluidized bed. bed and a liquid storage tank 10, the gradient magnetically stable fluidized bed includes a bed body 7, the bottom of the bed body 7 is provided with a discharge port 8, and the outside of the bed body 7 is provided with an electromagnetic coil 6 capable of forming an axially uniform gradient magnetic field , the electromagnetic coil 6 is connected with the power supply 9; the liquid in the magnetic nano medium storage tank 1, the water storage tank 2 and the algae liquid storage tank 3 enters the bed body 7 through the four-way valve 5 through the feed liquid pump 4, and the microalgal cells and The aggregates of the magnetic nano-medium are discharged through the discharge port ...

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Abstract

The invention relates to a gradient magnetic stabilization fluidized bed device used for harvesting microalgae, a magnetic nano media and microalgae types can be selected according to pre-experiment data and actual requirements, the use amount and concentration of the magnetic nano media are set according to the adsorption capacity of the magnetic nano media, and therefore the purpose of controlling the solid content in a bed body is achieved. The harvesting efficiency can reach 95% or above; and the unit volume treatment capacity reaches 1L / min / L or above and is far higher than the level reported in literatures. According to the invention, the problems of an existing microalgae magnetic separation technology in industrial application are solved, and large-scale semi-continuous harvestingof microalgae can be realized. The device is simple in structure, convenient to operate, high in microalgae harvesting efficiency, low in cost and easy to industrially amplify.

Description

technical field [0001] The invention relates to a microalgae separation gradient magnetically stable fluidized bed device and a method for microalgae harvesting. Background technique [0002] Microalgae are a type of microorganisms widely distributed on land and in the ocean, rich in nutrients and high in photosynthetic efficiency. They can synthesize many high-value natural active substances with unique structures and specific functions through various metabolic pathways in cells. They are used in the pharmaceutical industry, It is widely used in food industry, animal feed, etc. On the other hand, microalgae is a promising raw material for biodiesel due to its high oil content, and is considered to be a possible substitute for fossil energy; microalgae as a raw material for biodiesel has a high oil content , fast growth, high photosynthetic efficiency and many other advantages. However, the cost of harvesting microalgae accounts for 20-30% of the entire production cost, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/42C12M1/00C12N13/00C12N1/12C12R1/89
CPCC12M25/20C12M35/06C12M33/00C12N13/00C12N1/12Y02E50/10
Inventor 徐玲王锋马海乐
Owner JIANGSU UNIV
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