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Multi-gallery variable-tank-capacity microalgae photobioreactor

Resumen de: CN223823446U

The utility model discloses a multi-gallery variable-tank-capacity microalgae photobioreactor which comprises a reaction tank, a first partition wall and a third partition wall are sequentially arranged in the reaction tank in the flow direction, the first partition wall and the third partition wall divide the reaction tank into a first-stage tank, a second-stage tank and a third-stage tank, a second partition wall located between the first partition wall and the third partition wall is arranged in the reaction tank, and the first-stage tank, the second-stage tank and the third-stage tank are sequentially arranged in the reaction tank. The second partition wall divides the second-stage tank into at least two second-stage sub-tanks, the second partition wall is of a telescopic structure, and the first partition wall and/or the third partition wall are/is horizontally and movably arranged in the reaction tank. The reactor has the beneficial effects that the reactor is simple in structure and low in manufacturing and using cost, the tank volume can be adjusted according to the sewage inflow, and it is ensured that the reactor is in an efficient operation interval; in the growth process of algae in the pond, nitrogen, phosphorus and other substances in sewage can be effectively utilized, and the content of nitrogen, phosphorus and other pollutants in the sewage is effectively reduced.

Linkage mechanism and continuous harvesting device

Resumen de: CN223823585U

The utility model relates to the technical field of pipeline reinforcement, in particular to a linkage mechanism which comprises a frame body, a movable column, a screen mesh and a harvesting unit, the frame body is arranged on one side of the movable column, the screen mesh is arranged on one side of the frame body, the linkage unit is arranged on one side of the harvesting unit, the harvesting unit comprises an algae outlet pump, a recycling pool and a harvesting barrel, the algae outlet pump is arranged on one side of the recycling pool, and the harvesting barrel is arranged on one side of the recycling pool. The harvesting barrel is arranged on the other side of the recycling pool. The microalgae harvesting device has the advantages that the screen is automatically hung on the hooks or microalgae are automatically unloaded from the screen, the microalgae harvesting procedure can be carried out through a simple mechanical structure, and meanwhile labor cost and cost are saved through a linkage mechanism.

Rapid biofilm culturing device for bacteria-algae membrane

Resumen de: CN223823447U

The utility model provides a fast biofilm culturing device for bacteria and algae membranes, which relates to the field of water treatment and comprises a culture tank (10), a cover plate (20) and an expanding culture-biofilm culturing reactor (30), first reflective layers (11) are uniformly arranged on the side wall of an inner cavity of the culture tank, and first luminous bodies (12) are uniformly arranged on the side surface of one side, far away from the culture tank (10), of each first reflective layer (11); a limiting ring (21) and a sealing ring (22) are arranged on the bottom surface of the cover plate (20); a second light reflecting layer (23) and a second luminous body (24) are arranged on the inner side of the limiting ring (21); the expanding culture-biofilm culturing reactors (30) are uniformly arranged in the inner cavity of the culturing tank (10), and a third luminous body (13) is arranged between every two adjacent expanding culture-biofilm culturing reactors (30). The device can realize rapid biofilm formation of microalgae, the biofilm formation time is short, the biofilm formation condition is controllable, and the treatment effect and efficiency of the circulating aquaculture water body are effectively improved.

Bacteria-algae symbiotic integrated culture tail water treatment system and method

Resumen de: CN121377345A

The invention discloses a bacterial-algae symbiotic integrated culture tail water treatment system and method. The culture tail water treatment system comprises a regulating reservoir, a submersible sewage pump, a multi-stage coupling biochemical treatment unit and a shellfish purification unit, the submersible sewage pump is arranged at an outlet of the adjusting tank; the multi-stage coupling biochemical treatment unit comprises an aeration biochemical pool, a biological filter bed and an aerobic denitrification microalgae biological membrane unit which are sequentially connected in series; the biological filter bed takes a rice husk layer and a pelelith layer as biological carriers; the aerobic denitrification microalgae biological membrane unit comprises microalgae and functional bacteria, the functional bacteria are bacilli weldmanni and escherichia marmoreus, the microalgae fix CO2 and release oxygen through photosynthesis, and the functional bacteria degrade nitrides through heterotrophic nitrification-aerobic denitrification; the shellfish purification unit is arranged at the water outlet end of the multi-stage coupling biochemical treatment unit and is used for filtering residual microalgae and suspended particulate matters in the water body. The invention further provides a tail water treatment method, nitrogen and phosphorus are efficiently removed, energy consumption is reduced, secondary pollution is avoided, and resource utilization can be achieved.

Method for reducing inhibition of free nitrous acid on toxicity of microalgae

Resumen de: CN121377353A

The invention discloses a method for reducing inhibition of free nitrous acid on toxicity of microalgae, and belongs to the technical field of biology and new medicine. In order to solve the problem that free nitrous acid (FNA) in a microalgae-nitrifying bacteria co-culture system destroys a microalgae photosynthetic system and inhibits growth, alpha-ketoglutaric acid with the final concentration of 0.5-1.0 mM is exogenously added into the microalgae-nitrifying bacteria co-culture system, so that carbon and nitrogen metabolism of microalgae is regulated and controlled, the tolerance of the microalgae to FNA is enhanced, the photosynthetic efficiency and biomass of the microalgae are remarkably improved, and the microalgae-nitrifying bacteria co-culture system can be used for preparing the microalgae-nitrifying bacteria co-culture system. The ammonia nitrogen removal rate and the system stability are improved; the method is easy and convenient to operate, low in cost, suitable for high-ammonia-nitrogen wastewater treatment and capable of assisting long-term stable operation of a phycomycete symbiotic system.

Treatment system and method for high-nitrogen low-carbon aquaculture tail water

Resumen de: CN121377324A

The invention provides a treatment system and method for high-nitrogen low-carbon aquaculture tail water, the treatment system comprises at least two circulating beds, the circulating beds respectively comprise a first circulating bed and a second circulating bed, and each circulating bed comprises a filter tank, a middle tank, a symbiotic wet curtain and a circulating pipeline; the biological filter material located in the first circulating bed is inoculated with nitrifying bacteria, the biological filter material located in the second circulating bed is inoculated with denitrifying bacteria, the symbiotic wet curtain comprises a plurality of curtain cloths arranged at intervals, and the curtain cloths are formed by weaving hydrophilic modified fiber materials. Through the synergistic effect of the symbiotic wet curtain and the filter tank, the synergistic efficiency of bacteria and algae is improved, a huge attachment area and a stable growth space are provided for microorganisms such as nitrifying bacteria, denitrifying bacteria and microalgae through the symbiotic wet curtain, and attachment is provided for the nitrifying bacteria through the suspended aerobic filter material; the anaerobic filter material is used for adhering denitrifying bacteria, so that the loss of biomass is reduced.

NOVEL METHOD OF PRODUCING AN ALGAE COMPOSITION

Resumen de: US20260022315A1

A system and method for growing microalgae capable of mixotrophic metabolism, preferably Chlorella sp. Microalgae grown in the system using the method are able to survive and grow in dark refrigeration, which allows the algae to be stored and transported for application as a live culture. In addition, the microalgae can be grown in sufficient quantities to be sold commercially for application to crops as a biostimulant.

NOSTOC SP. STRAIN OF CYANOBACTERIA PRODUCING 2-METHYLISOBORNEOL, AND METHOD FOR CULTURING SAME

Resumen de: WO2026018968A1

The present invention relates to: a Nostoc sp. strain of cyanobacteria that produces 2-methylisoborneol; and a method for culturing same. The Nostoc sp. strain according to the present invention is the first ever Nostoc sp. strain that produces 2-methylisoborneol, and considering the positive effect that 2-methylisoborneol has on the human body and the fact that 2-methylisoborneol is also used as a raw material for perfume, the HNIBRCY4 strain, which is an edible Nostoc sp. strain capable of being mass-produced, can be effectively used to produce 2-methylisoborneol.

COMPOSITIONS AND METHODS FOR TREATING AND PREVENTING INFLAMMATION AND MALNUTRITION

Resumen de: WO2026019757A1

Provided herein are compositions and methods for treating and preventing inflammation and malnutrition. In particular, provided herein are compositions comprising spirulina and microalgae or marine oils and use of such compositions, for example, as nutritional supplements and meal replacements for use in treating and preventing disease, inflammation, and malnutrition.

AIR PURIFICATION APPARATUS USING MICROALGAE

Resumen de: KR20260010791A

미세조류를 이용하여 이산화탄소를 포집하고, 산소를 배출하기 위한 공기 정차 장치가 개시된다. 상기 공기 정화 장치는 미세조류를 포함한 배양액이 상부를 통해 인입된 적어도 하나의 배양관과, 상기 적어도 하나의 배양관의 내부에 관 형태로 배치되어 상기 적어도 하나의 배양관 내부로 광원을 방출하는 적어도 하나의 광원 방출부와, 상기 적어도 하나의 배양관의 내부에 관 형태로 배치되어, 외부로부터 유입된 공기를 상기 적어도 하나의 배양관 내부로 방출하거나, 이하의 배양관 커버부로 공급하여 상기 적어도 하나의 배양관 내부로 방출하는 공기 방출부와, 상기 적어도 하나의 배양관의 상부에 결합되며, 상기 광원 방출부에 전압을 공급하고, 흡입된 공기를 상기 적어도 하나의 배양관 내부로 방출하거나, 상기 공기 방출부로 공급하는 배양관 커버부를 포함한다.

High value product (HVP) production methods using raceway pond systems

Resumen de: GB2642749A

A method for producing a high value product (HVP), wherein the method comprises: (a) a first algal culture phase, comprising culturing marine HVP-producing microalgae in a first series of connected raceway ponds, maintained in the exponential growth phase by successive dilution with seawater and nutrient addition; (b) a second algal culture phase, comprising culturing the algae in one or more induction raceway ponds (that are connected to the first series of connected raceway ponds in which algae are cultured in step (a)), wherein the algae are cultured under stress conditions that induce the algae to increase HVP production; (c) a harvest phase, comprising harvesting algae from one or more of the induction raceway pond(s) in which algae are cultured in step (b); and (d) an extraction phase, wherein the extraction phase comprises extracting the HVP from the algae harvested in step (c). Also a raceway pond system comprising: (a) a linear series of connected raceway ponds comprising a first stage comprising one or more covered raceway ponds 210A-210D and a second stage comprising one or more open raceway ponds 210E; and (b) at least two series of induction raceway ponds that are connected, in parallel, to the final raceway pond of the linear series of connected raceway ponds.

Microalgae emulsion and preparation method thereof

Resumen de: CN121359774A

The invention relates to the technical field of food, in particular to microalgae emulsion and a preparation method thereof. The microalgae emulsion provided by the invention comprises chlorella pyrenoidosa subjected to green removal; and a liquid phase for dispersing the chlorella pyrenoidosa, wherein the liquid phase consists of water and corn oil. The chlorophyll content of the chlorella pyrenoidosa subjected to green removal is extremely low, meanwhile, the protein content of the chlorella pyrenoidosa subjected to green removal is extremely high, and the formed microalgae emulsion can be milky white, so that the adverse effect of conventional green chlorella on food sense organs can be reduced, and meanwhile, the green chlorella pyrenoidosa subjected to green removal is prepared based on the effect of a liquid phase composed of water and corn oil and the chlorella pyrenoidosa subjected to green removal. The microalgae emulsion disclosed by the invention also has good stability; therefore, the microalgae emulsion disclosed by the invention has very good stability and consumer acceptability, and has a very good application prospect in the field of foods.

Biological cushion material based on microalgae, preparation method of biological cushion material and application of biological cushion material in sandy soil improvement

Resumen de: CN121362584A

The invention discloses a biological cushion material based on microalgae, a preparation method of the biological cushion material and application of the biological cushion material in sandy soil improvement, and belongs to the technical field of agricultural ecological restoration. The preparation method of the biological cushion material comprises the following steps: (1) adding a microalgae suspension into a reaction kettle, adding glycerol according to the proportion, heating to 38-42 DEG C, stirring and dissolving, adding cationic starch, and stirring and mixing uniformly; and (2) adding polyurethane into the material prepared in the step (1), uniformly stirring, then adding sodium lignin sulfonate, reacting for 10-14 minutes at a constant temperature, and filtering the mixed liquid to obtain the biological cushion material. The microalgae is prepared from chlorella sorokiniana (Chlorella sorokiniana), Anabaena sp.) and Nodulcia cf.Harveyana (Nodulcia cf.Harveyana) according to a quantity ratio of 60: 20: 20, and the microalga is prepared from chlorella sorokiniana (Chlorella sorokiniana), Anabaena sp.) and Nodulcia cf.Harveyana (Nodulcia cf.Harveyana). The concentration of microalgae in the microalgae suspension is 1 * 10 < 6 >-1 * 10 < 7 >/mL; the addition amounts of the glycerol, the cationic starch, the sodium lignin sulfonate and the polyurethane are respectively 1 to 1.5 weight percent, 2 to 3 weight percent, 0.6 to 1 weight percent and 10 to 30 weight

Microalgae polyculture method for adjusting organic carbon source supply through dissolved oxygen content feedback and application

Resumen de: CN121362641A

The invention discloses a microalgae polyculture method for adjusting supply of an organic carbon source through dissolved oxygen content feedback and application, and belongs to the technical field of microalgae culture, the method comprises the following steps: an autotrophic stage: introducing air into a culture reactor, and enabling cells to reach a certain concentration through autotrophic growth; in the polyculture stage, ventilation is stopped, dissolved oxygen is monitored in real time, starting and stopping of an organic carbon source pump are dynamically adjusted, and mixed nutrition is achieved; and continuous production: setting a dilution rate, continuously harvesting, supplementing the culture medium, and continuously operating. The addition of an organic carbon source is accurately controlled through the concentration feedback of dissolved oxygen, the photosynthetic and heterotrophic metabolism rates are matched, no net oxygen production (stable DO) is ensured, oxygen self-balance in the system is realized, and finally, the conversion rate of carbon is greatly increased and can reach 0.85 or above. According to the method, the microalgae productivity is remarkably improved under the condition of no gas exchange, and a new thought is provided for large-scale culture with low energy consumption and high carbon efficiency.

APPARATUS FOR CULTIVATING MICROALGAE AND METHOD THEREFOR

Resumen de: US20260013453A1

The present invention relates to a microalgae cultivation apparatus and method. A microalgae cultivation apparatus includes a cultivation vessel which has a cultivation space for accommodating a culture medium and cultivates microalgae therein, a gas supply unit configured to supply gas to the cultivation vessel, a gas discharge portion configured to discharge gas that has passed through the culture medium of the cultivation vessel, a sensor unit installed inside the cultivation vessel, an actuator unit installed inside the cultivation vessel, a microalgae collection device configured to collect the microalgae cultured in the cultivation vessel, and a control device configured to control at least one of the gas supply unit, the gas discharge portion, and the actuator unit to generate an environment for cultivating the microalgae, collect cultivation information through the sensor unit, and control the microalgae collection device to collect the microalgae based on the collected cultivation information.

Transgenic synechocystis strain with enhanced stress resistance to various heavy metal ions, and construction method and application thereof

Resumen de: CN121362717A

The invention discloses a transgenic synechocystis strain with enhanced stress resistance to various heavy metal ions as well as a construction method and application of the transgenic synechocystis strain, and belongs to the technical field of microorganisms. The transgenic synechocystis algal strain is constructed by integrating a cyanobacteria high expression promoter and a gene HMP3 of a human metallothionein artificial mutant into a synechocystis PCC6803 genome. Detection shows that the transgenic synechocystis strain shows remarkably enhanced stress resistance under the stress condition of heavy metal ions such as Cr < 6 + >, Pb < 2 + > and Cd < 2 + >. Compared with a wild type algal strain, the transgenic synechocystis algal strain has higher activity of superoxide dismutase (SOD) and catalase (CAT), and the content of phycobiliprotein, chlorophyll a and carotenoid is also maintained at a higher level. The invention provides an effective method for constructing a transgenic synechocystis strain resistant to stress of various heavy metal ions, and provides a technical means for application of microalgae in heavy metal sewage treatment.

Preparation method of microalgae carrier and application of microalgae carrier in immobilized enzyme

Resumen de: CN121343770A

The invention discloses a preparation method of a microalgae carrier and application of the microalgae carrier in immobilized enzyme. According to the method, chlorella, nannochloropsis and schizochytrium are taken as objects, and microalgae residues are modified to be prepared into a microalgae carrier by utilizing pretreatment of a deep eutectic solvent in which the ratio of n (ChCl) to n (glycerol) is 1: 2 in combination with an ultrasonic-assisted technology, and the microalgae carrier is used for immobilizing lipase. According to the method, the utilization rate of microalgae can be increased, resource waste and environmental pollution are reduced, a systematic technical path is provided for full-component high-value utilization of microalgae grease and residues, and application and expansion of green enzyme engineering in the fields of food processing and biological manufacturing are expected to be promoted.

Composite microbial preparation for promoting tobacco growth and preparation method and application thereof

Resumen de: CN121343804A

The invention relates to the technical field of biological preparations, in particular to a compound microbial preparation for promoting tobacco growth and a preparation method and application thereof. The invention provides a composite microbial preparation for promoting tobacco growth. The composite microbial preparation comprises the following components in parts by mass: 20-30 parts of a composite microbial agent, 3-9 parts of microalgae, 8-14 parts of penicillium inactivated mycelium, 1-6 parts of humic acid, 1-6 parts of potassium fulvate and 40-60 parts of a protective agent. The compound microbial preparation disclosed by the invention not only can provide nutrition required by growth and development of tobacco, but also can regulate soil microorganisms and improve a soil structure, so that the growth of the tobacco is promoted, and the yield and the quality of the tobacco are improved; the compound microbial preparation is safe and effective, and is beneficial to healthy development of agriculture.

High-purity PDRN extract derived from microalgae and preparation method thereof

Resumen de: CN121343981A

The present disclosure relates to a high purity PDRN extract derived from microalgae and a method for preparing the same. Specifically, the high-purity PDRN extract derived from microalgae according to the present disclosure uses microalgae, which can be massively cultivated at any time without being limited by the external environment or time, as a raw material, thereby facilitating production and having excellent sustainability, and is safe without the risk of human being infected by foreign viruses, and thus has a low molecular weight, and thus, when applied to products such as cosmetics, the PDRN extract can be easily produced. And the skin absorption rate is excellent.

Microalgae treatment pond for aquaculture processing wastewater

Resumen de: CN121342208A

The invention provides a microalgae treatment pond for aquaculture processing wastewater, and belongs to the technical field of wastewater treatment. Comprising a tank body, a guide wall is arranged in the center of the bottom wall of the tank body and used for dividing the tank body into an aerobic zone and an anoxic zone, and a stirring and flow pushing mechanism is arranged in the tank body and located in the aerobic zone and used for pushing water in the tank body to circularly flow; the stirring and flow pushing mechanism comprises a rotating frame rotationally arranged in the aerobic zone, and mounting boxes are arranged on the outer side of the rotating frame at equal intervals. A stirring and flow pushing mechanism is arranged in the aerobic zone, water in the tank body can be driven to circularly flow, the activity of microorganisms can be improved, pollutants such as nitrogen, phosphorus and organic matter in wastewater can be more efficiently absorbed, converted or removed, meanwhile, a pushing and rotating assembly is arranged and can drive the paddle to rotate after the paddle enters water again, and therefore the sewage treatment effect is improved. The two sides of the paddle can obtain higher shearing force, so that a microbial film is fully stripped, and microbial loss caused by accumulation of the microbial film is prevented.

Method for increasing content of native Omega-3 fatty acid in animal products

Resumen de: CN121336920A

The invention provides a method for increasing the content of native Omega-3 fatty acid in animal products. Microbial fermentation is utilized to produce a microalgae powder preparation with rich nutrient substances, the microalgae powder preparation is mixed into daily ration to feed ruminants, and the original milk containing Omega-3 fatty acid is obtained. The total Omega-3 fatty acid content of the animal product reaches 54 to 65 mg/100 mL, and the DHA content of the animal product reaches 31 to 35 mg/100 mL; the EPA content reaches 10 to 12 mg/100 mL; the DPA content reaches 4 to 6 mg/100 mL; the content of ALA (Alkaline A) reaches 7 to 12 mg/100 mL. According to the method disclosed by the invention, the palatability, the oxidation stability and the biological synergistic conversion rate of animals are solved, and meanwhile, the content of the Omega-3 fatty acid in the raw milk is obviously increased.

Microalgae membrane biological coupling sewage purification equipment

Resumen de: CN121342224A

The invention discloses microalgae membrane bio-coupling sewage purification equipment in the technical field of sewage purification. The microalgae membrane bio-coupling sewage purification equipment comprises a treatment tank, a mud-water separation membrane and a drainage pipe located below the mud-water separation membrane, in the process of carrying out microalgae and microorganism coupled purification on sewage, the swing mechanism is arranged on the surface of the mounting frame, so that the filter screen can be turned over, and the swing mechanism is limited by the limiting mechanism, so that the swing mechanism and the mounting frame are kept stable; the swing mechanism extrudes the elastic telescopic piece; after sewage treatment is finished, the limiting mechanism relieves limiting of the swing mechanism, the elastic telescopic piece extends to release elastic potential energy to bounce the swing mechanism and the filter screen upwards, the position where the filter screen is installed is exposed, airflow can directly pass through, the airflow exchange rate of the upper portion and the lower portion of the installation frame and the gas exchange membrane is increased, and the pressure difference is reduced; and the mounting frame and the gas exchange membrane can be stably and quickly lifted.

Microalgae composite sugar powder as well as preparation method and application thereof

Resumen de: CN121337003A

The invention relates to the technical field of food processing, in particular to microalgae composite sugar powder as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a sweetening agent, a wall material, microalgae powder and water, and shearing to obtain primary slurry; carrying out homogenization treatment on the primary slurry to obtain secondary slurry; and carrying out spray drying on the secondary slurry to obtain the microalgae composite sugar powder. According to the technical path, an algae-sugar integrated interface is constructed, the inherent problems of sensory defects, poor physical properties, chemical instability and the like of microalgae can be synchronously solved, and an ideal burdening solution is provided for efficient application of microalgae components in public daily food such as baking, beverages, candies and the like.

Method for two-stage synergistic purification of aquaculture tail water by microalgae and photosynthetic bacteria

Resumen de: CN121342227A

The invention provides a method for two-stage synergistic purification of aquaculture tail water by microalgae and photosynthetic bacteria, and the method comprises the following steps: mixing aquaculture tail water with microalgae, introducing carbon dioxide, carrying out first-stage treatment and solid-liquid separation under an illumination condition, collecting liquid, mixing with photosynthetic bacteria, carrying out second-stage treatment, and carrying out solid-liquid separation, purified tail water is obtained. According to the method, the microalgae and the photosynthetic bacteria take pollutants of the aquaculture tail water as nutrient elements required by growth, two-stage treatment is carried out, the aquaculture tail water is synergistically purified, and the total nitrogen content is reduced to an extremely low level on the premise of ensuring that the total phosphorus content, the permanganate index, the suspended matter content and the pH value reach the standard.

Edible solid fermentation product and preparation method thereof

Nº publicación: CN121337004A 16/01/2026

Solicitante:

MU DEHUA
\u7A46\u5FB7\u534E

Resumen de: CN121337004A

The invention discloses an edible solid-state fermentation product and a preparation method thereof. The preparation method comprises the following steps: culturing microalgae to obtain a microalgae culture, preparing a granular edible substrate, carrying out first fungus culture to obtain a fungus culture, and mixing the microalgae culture and the edible substrate to form an edible solid-state culture medium. And then, adding the fungus culture into the edible solid culture medium, and carrying out second fungus culture to form an edible solid fermentation product. And finally, performing drying treatment to form edible solid-state fermentation powder containing rich fungi and metabolites thereof, and microalgae and metabolites thereof. The edible solid fermentation product provided by the invention maintains nutritional ingredients of fungi and microalgae to the greatest extent, and cell walls of the microalgae are decomposed through the fungi, so that more microalgae metabolites are generated.