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167
results.
Updated on
07/07/2025 [14:50:00]
Results 75 to 100 of 167
Absstract of: CN119825627A
The invention relates to the technical field of ocean renewable energy sources and biological resources, in particular to an ocean wind power-microalgae cultivation integrated device and method.The device comprises a vertical axis fan, a microalgae cultivation buoyancy tank and a storage cargo hold; the vertical axis fan comprises a wind power driving unit and a power generation unit; the wind power driving unit is vertically driven on the power generation unit; the cargo storage cabin is arranged on the power generation unit; the power generation unit is fixed on the microalgae culture buoyancy tank through a support frame; the microalgae cultivation buoyancy tank comprises a tank body, and the conveying end of the microalgae cultivation unit is connected to the storage cargo hold through the tank body; the light source unit is distributed at the bottom of the microalgae culture unit, the vertical axis fan is combined for wind power generation, and rich wind energy resources of the ocean are effectively utilized. Meanwhile, the electricity generated by power generation is used for microalgae cultivation, and multi-stage utilization of energy is achieved.
Absstract of: CN119823852A
The invention belongs to the technical field of microalgae culture, and particularly relates to a microalgae culture device which comprises a transparent culture tank and a lifting mechanism, a mounting frame is mounted at the upper end of the lifting mechanism, a culture cover is mounted at the lower end of the mounting frame, the mounting frame is connected with a gas conveying pipe in a penetrating manner, and a rotating pipe hermetically connected with the gas conveying pipe is rotatably mounted at the lower end of the mounting frame; a plurality of one-way air outlets are formed in the rotating pipe; a meshing groove is formed in the peripheral side of the rotating pipe, a first gear is rotationally connected to the upper side of the interior of the triangular frame, the light transmitting part is installed at the lower end of the installation shaft, and a light supplementing lamp is installed on the peripheral side of the transparent culture tank. Meanwhile, the light-transmitting part is driven to rotate to further refract an external light source through the light-transmitting part, so that the influence on photosynthesis due to different light source contact effects of a solution in the microalgae and a solution on the outer side is avoided.
Absstract of: CN119799444A
The invention discloses a curtain wall type microalgae culture device for pollutant treatment and carbon sequestration, and relates to the technical field of pollutant treatment.The curtain wall type microalgae culture device is characterized in that a box fixed to a wall is used as a reaction container, and an outer cleaning assembly similar to a hanging basket in the lifting and moving process is used for cleaning the outer wall of the box; the inner cleaning assemblies located in the box body are driven by magnetic force to be attached to the inner wall of the box body to scrape off wall-attached microalgae, and a driving assembly does not need to be arranged for each inner cleaning assembly; the inner cleaning assembly plays a role in stirring the culture solution in the moving process; the microalgae culture device has the technical effects that the microalgae culture device is small in occupied area, high in integration, less in interference of external environment, capable of conveniently and efficiently cleaning the adherent microalgae, adjustable in adherent microalgae cleaning strength and relatively low in manufacturing and maintenance cost.
Absstract of: 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.
Absstract of: CN119791291A
The invention belongs to the field of food, and provides an all-round nutrition fortified food and a preparation method thereof, the food comprises the following raw materials in parts by weight: 10-30 parts of protein complex, 5-12 parts of lipid composition, 30-60 parts of compound carbohydrate, 4-10 parts of dietary fiber enhancer, 0.5-5 parts of customized vitamin group, and 1-10 parts of mineral chelate. 0.1 to 2 parts of a probiotic and prebiotic compound, and 0.01 to 0.5 part of an antioxidant; through combination of novel protein sources such as microalgae protein and insect protein and high-quality lipids such as linseed oil and algae oil, a more comprehensive and balanced nutrition ratio is provided, the nutritional requirements of special crowds are particularly met, and compared with traditional food, the provided nutritional value is higher; by means of mineral substances in the form of amino acid chelate or organic acid salt and addition of probiotics and prebiotics, absorption and utilization of nutritional ingredients are promoted, and the biological value of food is improved.
Absstract of: 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
Absstract of: CN119799447A
The invention discloses a photobioreactor system suitable for pollutant treatment and carbon sequestration, and relates to the technical field of pollutant treatment equipment.According to the photobioreactor system, microalgae is utilized for pollutant treatment and carbon sequestration, and a plurality of longitudinally-arranged cylindrical containers are connected in parallel; a plurality of lamp posts are arranged outside cylindrical containers, a disc-shaped scraper blade is arranged in each cylindrical container, and the disc-shaped scraper blades in all the cylindrical containers are driven by magnetic force to be tightly attached to the pipe wall and move up and down in a unified mode. In the moving process of the disc-shaped scraping plate, the effects of stirring algae liquid and dispersing gas are achieved at the same time; the technical effects that the interference of the external environment on the photobioreactor system is small, the cleaning of the adherent microalgae can be conveniently and efficiently completed, the carbon sequestration effect is good, the algae liquid stirring efficiency is high, the damage to the microalgae is small when the algae liquid is stirred, the structure is relatively simple, and the cost is relatively low are achieved.
Absstract of: 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.
Absstract of: CN119793187A
The invention provides a biological method for synergistically immobilizing methane and carbon dioxide, which comprises the following steps: mixing activated sludge with microalgae, continuously introducing gas, and forming an algal-bacterial symbiont under the condition of continuous illumination; the method comprises the following steps: putting the algal-bacterial symbiont into a reactor, pumping sewage, introducing gas, and carrying out periodic operation according to a water feeding-aeration-precipitation-drainage mode; wherein the gas comprises methane and carbon dioxide, and the sewage comprises a carbon source, a nitrogen source and a phosphorus source. According to the method, the bacteria-algae particles can be obtained through culture, and the bacteria-algae particles can provide electrons for denitrification by using the soluble methane as an electron donor, so that the purposes of synchronously removing the soluble methane and denitrifying are achieved, and the denitrification process is optimized. The bacteria-algae particles can also realize fixation of methane and carbon dioxide, the sewage treatment process is optimized, and the problems that soluble methane is difficult to remove and carbon emission is high in the existing sewage treatment process are solved.
Absstract of: 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.
Absstract of: US2025115501A1
The present invention is related to the fields of bioplastics. In particular, a strain of photosynthetic cyanobacteria (i.e. blue-green algae) having a high growth rate was engineered to overexpress limonene synthase. These engineered cyanobacteria improve auto-sedimentation for biomass harvest and provide for plastic bioremediation capture. Further, machine-learning methods are provided for improving some of the aspects of cultivating cyanobacteria including, but not limited to, assessing real-time light availability and predicting real-time algae growth rates to increase a cyanobacteria biomass.
Absstract of: US2025115835A1
A bioproduct manufacturing system is disclosed. The system comprises a hollow-fiber primary membrane gas absorber comprising a shell side and a lumen, wherein the primary membrane gas absorber is configured to receive a carbonate salt-based solvent on the shell side and a gas mixture comprising oxygen, nitrogen, and carbon dioxide in the lumen, at least one runway algal cassette reactor-photobioreactor, and a growth medium circulating between the primary membrane gas absorber and the at least one runway algal cassette reactor-photobioreactor. The at least one runway algal cassette reactor-photobioreactor comprises at least one growth chamber coupled to and in fluid communication with a headspace channel so as to define an interior volume, a first condenser coupled to and in fluid communication with the headspace channel, and a harvest line in fluid communication with the at least one growth chamber and coupled to a filter.
Absstract of: WO2025073754A1
In a first aspect, the present invention relates to a composition of isolated microorganisms, wherein said microorganisms are in the form of viable microorganisms of at least the following genera: Microcoleus, Nostoc, Scytonema, Klebsormidium. This means that the mixture comprises at least cyanobacteria and a microalgae, preferably as a mixture with another microalgae. In a further aspect, the invention relates to a method for improving soils, comprising applying the composition of isolated microorganisms according to the invention to the soil. In particular, the invention relates to a method for improving the soil crust. Lastly, the present invention relates to the use of the composition of isolated microorganisms according to the invention for the improvement of soils, in particular for the (re)formation and improvement of soil crusts.
Absstract of: WO2023233305A1
The present invention discloses a process mode of microalgal cultivation in semi- continuous on wine wastewater with no need to recirculate the microalgal biomass in the reactor, without dilution and sterilisation of the effluent applied as a growth medium. The process was experimentally carried out by semi-continuously applying, without recirculation of the biomass, the cultivation of Chlorella vulgaris on the digestate from the anaerobic co-digestion of winemaking lees and waste activated sludge. The integrated anaerobic digestion-microalgae treatment process is advantageous from a circular economy perspective as it leads to the exploitation of grape processing chain waste, eliminating the economic burden on producers and involving: i) the phyto-depuration of the effluent, ii) the production of bio- methane and iii) the production of biomass containing high value-added by-products (lipids, proteins and starch) that can be used to produce biodiesel, animal feed, nutraceuticals/pharmaceuticals and for producing bioplastics.
Absstract of: AU2023279503A1
There are closed systems of growing microalgae but as they are not able to produce algal biomass economically they are very few and far between and are only used to grow microalgae for very expensive produce. These closed systems also require large space. The result of the lack of economic closed systems is why almost all algal biomass production currently uses raceway ponds. This invention integrates a new compact, very economic and highly productive closed system of growing microalgae including good parameter control with carbon sequestration from say a coal fired power plant or organic waste management in a way that makes the whole process financially attractive and cyclic and if desired it could be made carbon negative. The compact nature of this invention allows algal farms to be sited next to most sources of carbon dioxide.
Absstract of: EP4534667A1
The present disclosure provides a modified promoter with which the amount of expression of a protein-coding gene can be controlled with flexibility. The modified promoter according to the present disclosure is a modified promoter including a base sequence (SEQ ID NO: 1) located upstream of a start codon of a slr1841 gene, the base sequence consisting of 348 bases, or a base sequence having 80% or more homology with the base sequence represented by SEQ ID NO: 1, the base sequence being modified by at least one selected from the group consisting of (i) replacement of one or more bases included in the base sequence with another base, (ii) deletion of one or more bases included in the base sequence, and (iii) insertion of one or more bases into the base sequence.
Absstract of: EP4534644A1
The present invention relates to a method for producing a microalgae concentrate with low viscosity, the method comprising a step of adjusting the pH of a microalgae fermentation broth and a heat treatment step, in which utility costs and investment costs can be reduced in a dehydration and drying step to secure price competitiveness for production and commercialization of dried microalgae products.
Absstract of: CN119776109A
The present invention relates to the technical field of microalgae photobioreactors, and discloses a light guide plate and microporous pipe coupled microalgae photobioreactor, the reactor comprises: a device body unit, which comprises a reactor body, a light guide plate assembly embedded in the side wall of the reactor body, and a hollow microporous pipe assembly; the light source is cooperatively arranged at the end part of the light guide plate assembly; the light guide plate assembly comprises a plurality of sets of light guide plates distributed in parallel, and the ends of the adjacent light guide plates are staggered. One end of the light guide plate extends out of the reactor body and forms an incident end; a flow channel is formed between each light guide plate and the wall surface of the inner cavity of the reactor body; the photobioreactor with a novel structure is designed, the light guide plate with excellent light transmission performance and the hollow microporous pipe are introduced into the culture of the haematococcus pluvialis, and on the premise that the occupied area of the reactor is not increased, the culture operation of the haematococcus pluvialis is simpler and more convenient and the culture operation is efficient through the integrated structure; and the cost is low.
Absstract of: CN119776240A
The invention belongs to the technical field of biological culture, and particularly relates to an efficient carbon-sequestration cyanobacteria mutant strain as well as a preparation method and application thereof. The preparation method of the high-efficiency carbon-sequestration cyanobacteria mutant strain comprises the following steps: inoculating an improved BG11 culture medium with a synechococcus slender PCC 7942 algae solution, introducing air with the CO2 concentration of 10-20% into the synechococcus slender PCC 7942 algae solution, carrying out continuous illumination at a culture temperature of 30-35 DEG C for evolution for 3-5 cycles, culturing for 5-10 days in each cycle, and when each cycle begins, culturing the synechococcus slender PCC 7942 algae solution with the CO2 concentration of 10-20% in the improved BG11 culture medium to obtain the high-efficiency carbon-sequestration cyanobacteria mutant strain. And adjusting the algae liquid concentration of the synechococcus slender PCC 7942 to the initial inoculation concentration, and obtaining the high-efficiency carbon-sequestration cyanobacteria mutant strain after evolution is finished. The high-efficiency carbon-sequestration cyanobacteria mutant strain obtained by the invention has relatively high growth rate and biological accumulation amount, and can improve the content of high-added-value products such as lipid and protein while realizing high-efficiency carbon sequestration.
Absstract of: CN119776107A
The invention relates to the technical field of microalgae cultivation, in particular to an efficient microalgae cultivation device of a circulating water system, which comprises an electro-catalytic reactor used for treating harmful substances in cultivation tail water and a cultivation raceway pond used for enlarging cultivation of microalgae, a biological treatment unit used for preliminary cultivation of microalgae is arranged on one side of the electro-catalytic reactor, the biological treatment unit comprises a bioreactor I, a bioreactor II and a bioreactor III which are arranged in sequence; the section of the bioreactor I is conical, and the bioreactor I is made of plastic. According to the method, harmful substances in the breeding wastewater can be degraded, then the degraded tail water is used for culturing microalgae, then cyclic utilization of nutrient substances is achieved, the breeding water quality can be stabilized, closed-loop circulation of the breeding water can be formed, and the situation that due to the fact that the types of pollutants in the breeding tail water are complex, the breeding water cannot be recycled is avoided. The tolerance of the microalgae to high-concentration harmful substances is limited, so that the normal growth and the purification efficiency of the microalgae are influenced.
Absstract of: CN119776113A
The invention discloses a microalgae closed mixotrophic culture method and a culture system thereof, and relates to the field of microalgae culture, and the method comprises the following steps: step 1, microalgae culture: pouring a culture solution into a culture tank, adding microalgae to be cultured into the culture solution, then fixing a sealing plate at a tank opening of the culture tank through bolts, and carrying out closed culture; step 2, air supply and nutrient solution addition: carbon dioxide is fed into an air distribution pipe through a pipeline by an air pump in an air supply assembly, bubbles are formed from a spray head and are conveyed into a nutrient solution, and part of rising bubbles are gathered by a baffle plate to prolong the retention time of the bubbles in a water body; the first electric telescopic rod drives the arc-shaped telescopic plate to move downwards, the transparent culture tank inside the arc-shaped telescopic plate is exposed, sunlight provides a light source to breed microalgae, the retention time of carbon dioxide in the water body can be prolonged, the utilization rate of carbon dioxide is increased, and the yield of microalgae is increased.
Absstract of: CN119774769A
The invention relates to the technical field of water treatment, in particular to a preparation method and application of a phycomycete compound. The phycomycete compound is applied to nitrogen and phosphorus removal and surface water treatment. Wherein the chlorella vulgaris and the quadruplex obliquus have strong reproductive capacity and strong adaptive capacity to environment, and absorb various elements such as carbon, nitrogen and phosphorus from water through autotrophy, heterotrophy and polyculture growth; activated sludge containing bacteroides and pseudomonas can degrade complex organic compounds, has metabolic capabilities such as heterotrophic denitrification and the like, and is beneficial to forming a co-culture system with microalgae in the initial culture stage; and nitrifying and denitrifying bacteria are compounded to consolidate the nitrogen removal environment order, so that the water body is effectively purified and the water color is good. The phycomycete compound obtained by the invention not only can be suitable for high-nitrogen simulation wastewater of a laboratory, but also can be applied to in-situ treatment of an actual river channel, has remarkable environmental benefits and has a wide application prospect.
Absstract of: CN119776115A
The invention belongs to a photobioreactor in the field of bioengineering, and particularly relates to a photobioreactor system with novel LED spectrum design for microalgae cultivation. Which comprises a reaction tank (used for containing algae liquid and assembling a special spectrum light source transparent pipeline and related equipment), a special spectrum light source transparent pipeline combination acting on a reaction system, and an automatic transparent pipeline cleaning device, and is characterized in that a multi-spectrum light source combination lamp strip is placed in the special spectrum light source transparent pipeline; the multi-spectrum light source combined lamp strip comprises a main light source and an auxiliary light source, and the continuous spectrum design parameters of the main light source are as follows: the peak wavelength is 465-495 nm, the main wavelength is 510-535 nm, and the continuous spectrum range is 380-780 nm; according to the continuous spectrum design of the auxiliary light source, the light absorption peak of the microalgae is used as the peak wavelength, multiple continuous spectrums are formed, and the spectrum range is 380 nm to 780 nm. According to the invention, the problem of spectrum design defects of indoor artificial light culture of microalgae and the problem of wall adhesion of microalgae in a transparent pipeline of a special spectrum light source are solved, the photosynthesis efficiency of microalgae is improved, and th
Absstract of: CN119774770A
The invention relates to the technical field of wastewater treatment, and discloses an algae membrane reactor, a decontamination optimization method, an online monitoring method and related equipment.The MAR reactor comprises an aeration system, an illumination system, a microalgae culture system, a membrane separation system, a water production tank, an algae production tank, a water pump and an intelligent control system; the method comprises the following steps: adding a pure microalgae stock solution through an adding pump, aerating and oxygenating through an air blower, stirring an algae-water mixed solution, enabling the amplified algae-water mixed solution to enter a membrane pool, pumping water by a backwashing pump, recycling the water or returning the water to a front-end advanced treatment unit, enabling a concentrated solution of algae to enter an algae box, centrifugally concentrating, storing and transporting as feed; microalgae species capable of efficiently removing specific pollutants in water are directionally cultivated according to production wastewater with different water quality characteristics, and intelligent operation of comprehensively assisting food industry wastewater treatment is achieved through construction of the self-control integrated algae membrane reactor and construction of the cloud management platform.
Nº publicación: CN119776252A 08/04/2025
Applicant:
QINGDAO INSTITUTE OF BIOENERGY AND BIOPROCESS TECH CHINESE ACADEMY OF SCIENCES
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Absstract of: CN119776252A
The invention relates to application of cadmium selenide in microalgae culture and a method for culturing microalgae, which comprises the step of adding cadmium selenide into a culture system. According to the method, cadmium selenide (CdSe) is added into a microalgae culture system to obtain a CdSe-cyanobacteria hybrid, so that the growth speed and the photosynthetic activity of microalgae are improved. The practice of the invention creates a new path for breaking through the inherent bottleneck of a microalgae natural photosynthetic system and improving the photosynthetic carbon sequestration efficiency.
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