Enclosed reactor for microalgae culture

Abstract

The invention provides an enclosed reactor for microalgae culture; outlets of an algae liquid supplementing device and a carbon dioxide conveying system are communicated with an inlet of a nutrient liquid conveying system; an outlet of the nutrient liquid conveying system is communicated with an inlet of a mixed gas-liquid exchange device; an outlet of the mixed gas-liquid exchange device is communicated with an inlet of a reactor; a circulating port of the reactor is communicated with a circulating port of the mixed gas-liquid exchange device; an algae liquid outlet of the reactor is communicated with an algae liquid harvesting system; a movable valve is disposed on a side wall of the reactor. The reactor of the invention is three-dimensional, stereo, and multilayer; a circulating clapboard and an annular channel are disposed inside; the reactor is made of acrylic transparent rubber or glass; innovation is performed mainly in aspects of light source and CO2 supply; and problems in the following three aspects are solved: firstly, the omnidirectional supplement of the light source; secondly, more reasonable circulation flow of the algae liquid, and the supplement of CO2 required byalgae; thirdly, the solution of the problems in aspects of maintenance, disassembly and washing in minimum time.

Description

technical field [0001] The invention relates to a closed reactor for microalgae cultivation, belonging to the technical field of microalgae cultivation reactors. Background technique [0002] Microalgae has the advantages of fast growth, short cycle, high light energy conversion rate, comprehensive nutrition, rich in a variety of high-value biological active substances, etc., and has become an important source of medicine, food and health products, aquaculture biological bait and feed additives , is an important research and development object in marine biotechnology. At present, the large-scale industrial production of microalgae mostly adopts the production mode of outdoor open pool, which has the disadvantages of large area, unstable production, easy pollution, light energy and CO 2 Problems such as low utilization rate and low cultivation efficiency have seriously restricted the rapid development of microalgae production and microalgae biotechnology industry. There is ...

AI Technical Summary

Problems solved by technology

However, there are still some problems in practice, such as low utilization rate of light energy, poor gas exchange, etc., especially the high energy consumption and high cost of pipeline photobioreactors commonly used at home and abroad, and the maintenance, disassembly and cleaning are difficult and time-consuming. Long time has become the main problem restricting the development of photobioreactors

Images