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A kind of microalgae collecting method and microalgae

A technology of microalgae and microalgae culture solution, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of shortening flocculation time, small amount of flocculant usage, high cost, etc., to achieve shortening flocculation time, The effect of high microalgae flocculation rate and reduced dosage

Active Publication Date: 2019-10-11
SHENYANG RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to overcome the time-consuming and high-cost problems of microalgae collection methods in the prior art, and provide a more economical microalgae collection method with small flocculant usage, good flocculation effect, and greatly shortened flocculation time. Method and microalgae collected by this microalgae collection method

Method used

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  • A kind of microalgae collecting method and microalgae
  • A kind of microalgae collecting method and microalgae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1A

[0034] In an electrolytic cell with a volume of 1.5L (length 10cm, width 10cm, height 15cm), put two parallel plates (length 10cm, width 8cm, thickness 0.3cm) vertically, with graphite as the anode and ruthenium oxide as the cathode , the distance between the electrodes is 4cm, and the concentration is 0.15g / L (dry weight) 1.0L of Chrysophylla Zhanjiang culture solution, the device is placed on a magnetic stirrer, stirred at 300rpm, and the current of the electrolytic cell is controlled by a constant voltage and constant current power supply. 0.5A, power on for 3 minutes, add ferric chloride to make the final concentration of ferric chloride in the solution 10mg / L, continue to stir at 200rpm for 3min, adjust the stirring rate to 50rpm, stir for 8min, let stand for 20min, and measure the flocculation rate to 83.5%.

[0035] Determination method of flocculation rate: Calculate the flocculation rate based on the change of algal cell density in the culture medium before and after f...

Embodiment 1B

[0044] Chrysophylla Zhanjiang was collected by the same method and steps as in Example 1A, except that the electrified current was 1A, and the flocculation rate was determined to be 87.6%.

Embodiment 1C

[0046] Chrysophylla zhanjiang was collected by the same method steps as in Example 1A, except that the electrified current was 1.5A, and the flocculation rate was determined to be 92.6%.

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Abstract

The invention relates to the field of microalgae, in particular to a microalgae collecting method and a microalgae. The microalgae collecting method comprises the following steps of energizing microalgae culture liquid by an inert electrode, electrically shocking microalgae cells, and adding an inorganic flocculant to flocculate. The microalgae collecting method has the advantages that the usage amount of the fluocculant is greatly reduced, the flocculating time is greatly shortened, the flocculating rate of the microalgae is high, and the effects of being more economical and efficient are realized; especially for the microalgae with higher activity capability, such as flagellated microalgae, the effect is more outstanding.

Description

technical field [0001] The invention relates to the field of microalgae, in particular to a microalgae collection method and the microalgae collected by the microalgae collection method. Background technique [0002] Compared with higher plants, microalgae have fast cell proliferation, high photosynthetic efficiency, short culture period, and high biomass yield per unit area; they are rich in a large amount of protein, polysaccharides, pigments and oils, and can be widely used in feed, food, medicine and health care products, cosmetics and renewable fuels and other fields; waste water, waste gas and other waste resources can be used as nutrient sources; saline-alkali land, desert and sea areas can be used for farming, without competing for land or people for food, and urban domestic sewage and Industrial wastewater and other farming are conducive to environmental governance. Therefore, microalgae bioenergy is considered to be a kind of bioenergy with great development poten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/12C12N1/02C12N13/00C12R1/89
Inventor 胥维昌章表明王加友
Owner SHENYANG RES INST OF CHEM IND
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