Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A raceway pond microalgae culture system that uses microbubbles to continuously harvest algae cells

A raceway pool and micro-bubble technology, which is applied to specific-purpose bioreactors/fermenters, enzymatic/microbiological devices, biochemical instruments, etc., can solve the problems of biomass loss, large energy consumption, and easy breeding of bacteria, etc. Achieve the effects of preventing light damage, improving utilization rate, and improving photosynthetic efficiency

Inactive Publication Date: 2017-12-01
OCEAN UNIV OF CHINA
View PDF5 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A raceway pond microalgae culture system that uses microbubbles to continuously harvest algae cells
  • A raceway pond microalgae culture system that uses microbubbles to continuously harvest algae cells
  • A raceway pond microalgae culture system that uses microbubbles to continuously harvest algae cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 1 , 3 , 4. As shown, the microalgae culture system in the runway pool that utilizes microbubble continuous air flotation to harvest algae cells provided by the present embodiment includes a runway pool, and a turbulent carbon replenishing device, a microbubble air flotation harvesting device, and a barrier are provided in the runway pool. Flow device, double paddle wheels and the groove structure below.

[0050] The turbulent flow carbon replenishment device for the microalgae runway pool provided in this embodiment includes a transparent sealing cover and a base plate, the transparent sealing cover is located above the base plate, and a water flow blocking plate is arranged on the inner wall and the bottom plate of the transparent sealing cover perpendicular to the direction of water flow, the water flow blocking plate and the exposure plate. An aeration device, the aeration device is located on the bottom plate and in front of the water flow blocking plate, th...

Embodiment 2

[0069] Such as figure 2 As can be seen, the difference between the new gas supply device for the microalgae runway pool 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

[0071] Such as Figure 5 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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
heightaaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a runway pool microalgae culture system using micro-bubble continuous gas flotation to harvest algal cells; the system includes a runway pool, the runway pool is internally provided with a turbulent flow carbon supplementing device, a device using micro-bubble continuous gas flotation to collect the runway pool algal cells, a flow blocking device, a double-paddle-wheel device and a groove structure which is arranged at the lower side. The system has the following advantages: (1) the circulation of a water body in the runway pool can be accelerated, and the gas exchange frequency between a liquid surface and the atmosphere is improved; (2) preliminary concentration on the algal cells can be achieved effectively in real time, the centrifugal efficiency is improved, the centrifugal energy consumption is reduced and the harvesting cost is decreased; (3) distributed carbon dioxide can be prevented from escaping, the utilization rate of carbon dioxide is improved, and the pH of an algal liquid is more rapidly adjusted; (4) exchange between an upper layer and a lower layer of the algae liquid can be effectively promoted, not only can the algae cells on the surface layer be prevented from being damaged by light, but also the total effective light energy quantity received by the algae cells of the unit water body is increased; and (5) the runway pool can realize continuous cultivation of microalgae, and an extremely small amount of waste water generated in the cultivation process can be recycled after the waste water is introduced to a disinfection pool and a nutrient salt blending pool through a pipeline and is treated.

Description

technical field [0001] The invention relates to a microalgae culture system in a raceway pond for continuously harvesting algae cells by means of microbubbles, in particular to a raceway pond for large-scale cultivation of microalgae, which belongs 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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/04C12M1/02
CPCC12M23/02C12M27/02C12M29/06C12M47/02
Inventor 潘克厚韩吉昌张琳王松李赟
Owner OCEAN UNIV OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com