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Flash illumination type microalgae bio-membrane reactor and microalgae culture method

A technology of flash lighting and membrane reactors, applied in photobioreactors, methods of supporting/immobilizing microorganisms, combination of bioreactors/fermenters, etc., can solve the problems of high harvesting costs, simplify harvesting methods, reduce Illumination cost, effects of mitigating photoinhibition

Pending Publication Date: 2021-10-19
NANJING AGRICULTURAL UNIVERSITY
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a flash lighting type microalgae photobiofilm reactor to make the microalgae attach and grow on the membrane material in view of the high cost of harvesting the microalgae photobioreactor and the photoinhibition caused by the continuous light of the microalgae. , by adjusting the frequency light source, using the flash effect of microalgae, increasing the biomass production rate of microalgae and reducing the cost of industrial lighting

Method used

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Embodiment 1

[0030] Such as Figure 1-Figure 3 As shown, a flash lighting microalgae photobiofilm reactor includes a square culture container 1, an adsorption culture membrane assembly, a flash lighting system and a gas supply system; the adsorption culture membrane assembly includes a suspension rod 7 and a membrane assembly 2, Membrane module 2 comprises membrane material, and the four sides of membrane material are fixed by support frame, and membrane module 2 is suspended on the hanging bar 7 inside culture container 1 and is immersed in the culture solution, for microalgae cell attachment growth; Described flash lighting system is set Outside the culture container 1, the flash lighting system consists of an LED light board 9 and a flash frequency controller 8. The LED light board 9 is placed in parallel on both sides of the adsorption culture membrane assembly 2, and the LED light board 9 is provided with multiple The parallel LED light strips 10 are controlled by the flash frequency ...

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Abstract

The invention discloses a flash illumination type microalgae bio-membrane reactor. The reactor comprises a culture container, an adsorption culture membrane assembly, a flash illumination system and a gas supply system; the adsorption culture membrane assembly is suspended in the culture container and immersed in a culture solution; the flash illumination system is composed of LED lamp panels and a flash frequency controller, the LED lamp panels are arranged on the two sides of the adsorption culture membrane assembly in parallel respectively, and the flash frequency and illumination intensity of the LED lamp panels are controlled by the flash frequency controller; and a gas distributor is arranged at the bottom of the culture container and is connected with the gas supply system. The invention discloses a microalgae culture method. The method comprises the following steps: inoculating microalgae in a logarithmic phase into a flash illumination type microalgae photobiofilm reactor, and adjusting the flash frequency to be 1-100 HZ, the duty ratio to be 1: 1 and the illumination intensity to be 2000-5000 Lux. According to the flash illumination mode, the illumination cost is reduced, the light inhibition of the microalgae is reduced, and the microalgae biomass and the photosynthetic efficiency are improved.

Description

technical field [0001] The invention relates to a photosynthetic bioreactor for microalgae scale cultivation, in particular to a flash lighting type microalgae photobiofilm reactor comprising a flash lighting system and an adsorption culture system, and a microalgae biofilm reactor using the flash lighting type microalgae biofilm reactor Microalgae cultivation method. Background technique [0002] With the gradual transformation of the aquaculture industry from focusing on output to pursuing quality, people's demand for the quality of farmed animals is increasing, and bait is one of the key factors to improve the quality of animal feeding. Microalgae are primary producers in aquatic ecosystems, with the characteristics of rapid growth and high photosynthetic efficiency. In recent years, because microalgae are rich in protein, fatty acids, polysaccharides, vitamins, antioxidants, pigments and trace elements, etc., they are rich and balanced in nutrition, which is more in lin...

Claims

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Application Information

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IPC IPC(8): C12M1/34C12M1/04C12M1/00C12N1/12C12N13/00
CPCC12M21/02C12M23/48C12M25/02C12M29/06C12M29/26C12M31/02C12M37/04C12M41/00C12M41/06C12N1/12C12N13/00
Inventor 何梅琳刘瑞卿王长海李丹
Owner NANJING AGRICULTURAL UNIVERSITY
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