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A multi-directional turbulent, mixed raceway pond microalgae cultivation system

A raceway pool and turbulent flow technology, applied in the direction of microorganisms, microorganism-based methods, enzymology/microbiology devices, etc., can solve the problems of biomass loss, easy breeding of bacteria, and large energy consumption, so as to prevent light damage and reduce centrifugation Effects of energy consumption and utilization improvement

Inactive Publication Date: 2017-07-21
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the efficiency of this method is poor, especially when dealing with some non-benthic microalgae
In addition, since most of the cells are settled in a dark environment for a long time, this process is not only easy to breed bacteria, but also causes considerable biomass loss
At the same time, the process of transferring all the algae liquid to the sedimentation tank, and then transferring the upper layer of algae liquid to the runway pond consumes a lot of energy

Method used

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  • A multi-directional turbulent, mixed raceway pond microalgae cultivation system
  • A multi-directional turbulent, mixed raceway pond microalgae cultivation system
  • A multi-directional turbulent, mixed raceway pond microalgae cultivation system

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Effect test

Embodiment 1

[0051] figure 1 , 3 , 4, and 5, the multi-directional turbulent, mixed runway pool microalgae culture system provided by the present embodiment includes a runway pool, a turbulent carbon replenishment device is set in the runway pool, a harvesting device that utilizes microbubble recoil to concentrate algae cells, The baffle device, the double paddle wheel and the lower groove structure.

[0052] The turbulent flow carbon replenishing device provided in this embodiment includes a transparent sealing cover and a bottom plate, the transparent sealing cover is located above the bottom plate, and a water flow blocking plate is arranged on the inner wall of the transparent sealing cover and the bottom plate perpendicular to the direction of the water flow, and the water flow blocking plate and an aeration device are used for aeration. The device is located on the bottom plate and in front of the water flow blocking plate, the front of the transparent sealing cover is open vertical...

Embodiment 2

[0071] Such as figure 2 As shown, the difference between the turbulent flow carbon replenishing device provided in this embodiment and that in Embodiment 1 is that the transparent enclosure and the bottom plate are fixedly connected together by two pillars.

Embodiment 3

[0073] Such as Figure 6 As mentioned above, the difference between this embodiment and the previous embodiments is that a groove structure is set under the paddle wheel, which can make the stirred algae liquid form an upward recoil force there, thus helping to realize the upper and lower layers of the algae liquid convection. The concave surface of the groove is arc-shaped, the span is 3 times of the width of the paddle wheel impeller, and the deepest part is 15cm.

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Abstract

The invention discloses a multidirectional-turbulence and efficient-mixing novel runway pond microalgae cultivation system which comprises a runway pond. A turbulence carbon dioxide supplement device, an algae cell harvesting device utilizing microbubble back flushing, a flow retaining device and two paddle wheels are disposed in the runway pond, and a groove structure is disposed below each paddle wheel. The multidirectional-turbulence and efficient-mixing novel runway pond microalgae cultivation system is communicated with an algae cell settling pond, a disinfecting pond and a nutritive salt blending pond. The multidirectional-turbulence and efficient-mixing novel runway pond microalgae cultivation system has the advantages that water circulation in the runway pond can be accelerated, and air exchanging frequency between liquid surface and atmosphere is increased; primary concentration of algae cells can be achieved in real time and effectively, and centrifuging efficiency is increased; escaping of dispersed carbon dioxide can be prevented, carbon dioxide utilization rate can be increased, and algae liquid pH can be adjusted fast; convection between the upper layer and the lower layer of the algae liquid can be promoted effectively; continuous microalgae cultivation can be achieved.

Description

technical field [0001] The invention relates to a multi-directional turbulent and mixed raceway pond microalgae cultivation system, in particular to a raceway pond for large-scale cultivation of microalgae, belonging to the field of microalgae cultivation engineering. Background technique [0002] Microalgae are the most important primary producers of natural water bodies, accounting for more than 40% of global CO2 fixation by microalgae. At the same time, microalgal cells are rich in polyunsaturated fatty acids, various essential amino acids, active polysaccharides, pigments and other high value-added bioactive substances, making them of great application value in the fields of functional food, cosmetics, medicine and fine chemicals. In recent years, with the acceleration of the global industrialization process, the demand for energy has been increasing, while the traditional fossil energy is non-renewable, and the reserves are decreasing day by day. Researching and develo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/00C12R1/89
CPCC12M21/02C12M27/20
Inventor 潘克厚韩吉昌张琳王松李赟
Owner OCEAN UNIV OF CHINA
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