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Simple raceway pond used for microalgae cultivation and use method thereof

A technology for microalgae cultivation and runway pools, applied in microorganism-based methods, biochemical equipment and methods, bioreactors/fermenters for specific purposes, etc. problem, to achieve the effect of easy amplification, avoiding the risk of heavy metal pollution, and simple construction

Pending Publication Date: 2018-02-23
湖南瑞藻生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the phenomenon of large risk of liquid leakage and heavy metal pollution in the traditional raceway pool construction method, as well as the problem that materials such as plastics and iron plates are not easy to enlarge, and to provide an environmentally friendly and safe microalgae that can be enlarged and cultivated. Low-cost and simple track pool for cultivation

Method used

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  • Simple raceway pond used for microalgae cultivation and use method thereof
  • Simple raceway pond used for microalgae cultivation and use method thereof
  • Simple raceway pond used for microalgae cultivation and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The use area is 200m 2 The simple runway pool for the cultivation of spirulina. The specific construction method is: use a stainless steel tube with a diameter of 3cm and a wall thickness of 2mm and a stainless steel mesh with a wire diameter of 2mm and a mesh size of 6.4cm*6.4cm to weld a single component of the straight channel wall, the curved channel wall and the partition wall. The rod specification is 3cm in diameter and 2mm in wall thickness; the length of the straight channel is 35m, the width of the straight channel is 2.3m, the radius of the curved channel is 2.5m, the width of the partition wall is 0.4m, the height of the frame and lining of the runway pool is 0.6m, and the height of the straight channel wall The length of a single component of the wall and the partition wall is 5m, and the length of a single component of the curved channel wall is 1 / 2 of the semicircle; use self-sealing strips to fix the lining and frame, and use screws-nuts to fix the strut...

Embodiment 2

[0040] Others are the same as embodiment 1. The algae species is Scenedesmus dimorphus, which comes from the Freshwater Algae Species Bank of the Institute of Hydrobiology, Chinese Academy of Sciences, number 496. Scenedesmus dimorphus was cultivated with BG11 medium, the depth of the culture solution was 20 cm, and the inoculation density of algae cells was 0.3 g (dry weight) / L. Adjust the variable speed motor so that the flow rate of the culture solution in the raceway pool is about 20cm / s, and open the three liquid propellers at the same time.

[0041] Regularly detect the concentration of nutrient salt every day and replenish it in time, and inject CO regularly 2 , and add a small amount of water to make up for the evaporation loss of water. After continuous cultivation for 7 days, the algal cell density reaches 0.65g (dry weight) / L, and the output of algal cells per unit area reaches 10.0g (dry weight) / m 2 d. The conventional ingredients, amino acid, fatty acid and ca...

Embodiment 3

[0044] The area is 600m 2 The simple runway pool for the cultivation of spirulina. The specific construction method is: use a stainless steel tube with a diameter of 3cm and a wall thickness of 2mm and a stainless steel mesh with a wire diameter of 2mm and a mesh size of 6.4cm*6.4cm to weld a single component of the straight channel wall, the curved channel wall and the partition wall. The rod specification is 3cm in diameter and 2mm in wall thickness; the length of the straight channel is 115m, the width of the straight channel is 2.3m, the radius of the curved channel is 2.5m, the width of the partition wall is 0.4m, the height of the frame and lining of the runway pool is 0.6m, and the height of the straight channel wall The length of a single component of the partition wall is 5m, and the length of a single component of the curved channel is 1 / 2 of the semicircle; the inner liner and frame are fixed by self-sealing strips, and the struts and the straight channel wall are f...

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Abstract

The invention belongs to the field of photobioreactors, and particularly relates to a simple raceway pond used for microalgae cultivation and a use method thereof. The simple raceway pond comprises araceway pond lining and a raceway pond frame, wherein the raceway pond frame comprises a straight runner wall, a bent runner wall, a flow separating wall, stirring paddles, a variable speed motor, a support rod and a liquid propeller, wherein the straight runner wall, the bent runner wall and the flow separating wall form a circular water pond frame of the raceway pond. The raceway pond frame is easy to construct and is firm, is convenient to disassemble, and can be enlarged easily, and the corresponding size can be determined according to actual site. The raceway pond lining is of a completesleeve structure, cannot wrinkle during use, does not need to be splice, can effectively avoid liquid leakage, and is made of food-grade materials, so that the risk of heavy metal pollution caused byadopting cement or a geomembrane can be avoided. The liquid propeller can be matched with the stirring paddles to be used, has the characteristics of obviously reducing the liquid mixing energy consumption, and meanwhile can avoid algae cell settlement, so that the area yield can be increased.

Description

technical field [0001] The invention belongs to the field of photobioreactors, and in particular relates to a simple raceway pond for microalgae cultivation and a use method thereof. Background technique [0002] Microalgae are a class of photoautotrophic microorganisms that can fix CO 2 Production of various chemicals. Some can be used to produce aliphatic hydrocarbons, such as botrytis, which can produce hydrocarbons up to 15% to 75% of dry cell weight; some can be used to accumulate glycogen, and some can be used to accumulate glycerol, and the oil content of many microalgae can reach More than 30% of the dry weight is an important raw material for the production of biodiesel. Because of its fast growth rate and the ability to use waste water and waste gas for cultivation, it has received more and more attention worldwide. [0003] At present, the cultivation of microalgae is mainly carried out in photobioreactors, and the existing photobioreactors for microalgae culti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/02C12M1/00C12N1/12C12N1/20C12R1/89C12R1/01
CPCC12M23/02C12M23/20C12M27/02C12N1/12C12N1/20
Inventor 孙中亮孙利芹李丹王娅楠陈安详孙鹏程
Owner 湖南瑞藻生物科技有限公司
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