High-pressure micro-jet carbon supplementing system for microalgae cultivation of raceway pond

Abstract

The invention provides a high-pressure micro-jet carbon supplementing system for microalgae cultivation of a raceway pond. The high-pressure micro-jet carbon supplementing system a liquid portion, a gas portion, a high-pressure micro-jet device and a micro-sprinkler group, the liquid portion is used for providing high-pressure liquid, the gas portion is used for providing high-pressure CO2, the high-pressure liquid reversely and closely contacts with the high-pressure CO2, solubility of tiny CO2 bubbles formed by micro-jet is increased under the high-pressure condition, the CO2 is sufficiently dissolved in the liquid by adjusting flow of the gas and the liquid, and the liquid with the dissolved CO2 enters the micro-sprinkler group placed in the raceway pond and is eventually released into the raceway pond. The high-pressure micro-jet carbon supplementing system overcomes the shortcoming that a carbon source is directly supplemented in a gaseous CO2 form or by taking microalgae liquid as a CO2 carrier in the cultivation process of an existing raceway pond, and the carbon supplementing system is high in CO2 use ratio, uniform in distribution and simple to mount.

Description

Technical field: [0001] The invention belongs to the field of bioengineering, and in particular relates to a high-pressure micro-spraying carbon replenishment system for cultivating microalgae in raceway ponds. Background technique: [0002] Microalgae is a kind of aquatic organisms, which can use carbon dioxide quickly and efficiently through photosynthesis. Microalgae contain a large amount of protein, lipid, carbohydrate, amino acid, vitamin, polyunsaturated fatty acid and other bioactive components, which can be used as energy, Raw materials for food, pharmaceutical and other industries. [0003] Light and CO 2 is an essential condition for the growth of microalgae, sunlight and atmospheric CO 2 It can provide the cheapest raw material for the production of microalgae. But in most cases, available CO dissolved in water 2 cannot fully meet the needs of microalgae growth, so in large-scale culture, CO2 is continuously supplemented with the growth of microalgae 2 It is...

AI Technical Summary

Problems solved by technology

These methods do have better results in large-scale cultivation, and can greatly increase CO 2 The utilization efficiency, but this method is to directly pump the algae liquid into the carbon replenishing device through the water pump and CO with a certain pressure 2 Mixing will inevitably cause damage to the algae liquid, and the algae liquid will block the gas release nanopores described in the patent CN201110168432.X during long-term use

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