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Overflow type microalgae photobioreactor based on efficient utilization of light energy

Resumen de: CN119799446A

The invention relates to the technical field of photobioreactors, and discloses an overflow type microalgae photobioreactor based on efficient utilization of light energy, the reactor comprises a container assembly, a circulation assembly and a gas supply assembly, the container assembly comprises an outer container and an inner container arranged in an inner cavity of the outer container; the circulating assembly is arranged between the outer container and the inner container and comprises a circulating pipe, a circulating pump connected into the circulating pipe and a spray head group connected with the circulating pipe and extending into the inner container; the output end of the air supply assembly extends into the inner container; according to the overflow type microalgae photobioreactor, the adverse effect of uneven light energy distribution in the reactor on the growth of microalgae cells can be reduced through structural innovation of the reactor, so that the light receiving condition of the microalgae cells in the reactor is improved, and the yield of microalgae biomass and the fixed amount of CO2 are greatly increased.

Preparation method and application of microalgae feed

Resumen de: CN119791212A

The invention relates to the technical field of microalgae feed, and discloses a preparation method and application of microalgae feed, and the preparation method comprises the following steps: S1, extracting hawthorn flavone; s2, extraction of maca unsaturated fatty acid; s3, extracting beta-glucan from the oat bran; s4, extracting pinellia ternate agglutinin; s5, screening of excellent chlorella; according to the preparation method and application of the microalgae feed, the chlorella which is not reported by public literatures is screened out, substances such as pinellia ternate agglutinin extracted from pinellia ternate, beta-glucan extracted from oat bran, flavone extracted from hawthorn, unsaturated fatty acid extracted from maca and the like are combined to serve as a culture medium for culturing the chlorella, an original BG-11 culture medium is replaced, and the microalgae feed is prepared. The chlorella breeding rate is increased; the cultured composite microalgae liquid is used as a liquid feed for livestock and poultry, and compared with a common chlorella feed, the composite microalgae feed can more quickly eliminate toxins such as heavy metals in animal bodies; the weight of animals can be increased, the protein content of meat can be increased, and the fat content can be reduced.

Material proportioning and conveying device for microalgae carbon sequestration equipment

Resumen de: CN119799448A

The invention discloses a material proportioning and conveying device for microalgae carbon sequestration equipment, and relates to the field of microalgae culture. A material proportioning and conveying device for microalgae carbon sequestration equipment comprises a material conveying pipe, a water conveying cavity, a water spraying opening, a mixing cavity and a negative pressure cavity, the water conveying cavity, the water spraying opening, the mixing cavity and the negative pressure cavity are formed in the material conveying pipe, the water conveying cavity is communicated with the water spraying opening, and the caliber of the water spraying opening is smaller than that of the water conveying cavity; according to the device, powder and water are mixed more immediately and efficiently in the conveying process, after being sucked into the mixing cavity, the powder can be immediately mixed with high-speed water flow and continuously subjected to disturbance and shearing effects of the water flow in the process of conveying the powder to the microalgae carbon sequestration equipment, dissolution and uniform dispersion of the powder are promoted, and meanwhile, the powder can be uniformly dispersed in the microalgae carbon sequestration equipment. The mixing state of the nutrient solution is continuously optimized in the conveying process, it is guaranteed that the microalgae can receive the nutrient solution uniform in component and stable in quality, and the growth effic

Method for regulating and controlling key genes to improve high-temperature resistance and stress resistance of carbon sequestration microalgae

Nº publicación: CN119799497A 11/04/2025

Solicitante:

UNIV CHONGQING
STATE POWER INVEST ZHUHAI HENGQIN THERMOELECTRICITY CO LTD
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Resumen de: CN119799497A

The invention relates to a microalgae carbon sequestration technology, and aims to provide a method for regulating and controlling a key gene to improve high-temperature resistance and stress resistance of carbon sequestration microalgae. Comprising the following steps: regulating and controlling the expression quantity of four key genes in microalgae cells by performing temperature gradient domestication on the microalgae cells; the final temperature condition of the domestication culture is 42 DEG C, so that the expression quantity of each key gene is increased to several times of the original expression quantity; and (2) carrying out transfer culture on the domesticated microalgae strain, and verifying the genetic stability of the high temperature resistance of the microalgae strain. According to the invention, the adaptability of the microalgae to high-temperature stress can be enhanced, the biomass production efficiency of the microalgae in a high-temperature environment is improved, and the method has important application value in the fields of biological energy production, environmental restoration and the like; as the microalgae can well grow in high-temperature environments such as high-temperature regions and desert arid zones, the large-scale application of the microalgae carbon sequestration technology in the recovery and treatment of the carbon dioxide in the flue gas of the power plant in the high-temperature regions can be expanded.