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Device for treating livestock and poultry breeding wastewater through microalgae

Resumen de: CN223906674U

The utility model belongs to the technical field of microalgae culture and culture wastewater treatment, and particularly relates to a device for treating livestock and poultry culture wastewater by using microalgae, aiming at solving the problems that culture facilities are outdated, a large-scale culture technology is lacked and the like when the culture wastewater is treated by using the microalgae in the prior art. In order to solve the problem that industrial algae culture facilities and equipment are lack of related research, the utility model provides the following scheme: the device comprises an environment regulation and control system, a pumping system, and a pretreatment device, an airlift photobioreactor and a microalgae culture raceway pond which are sequentially connected with the pumping system; and the gas filtering aeration device and the environment regulation and control system are arranged on one side of the airlift photobioreactor and the microalgae culture raceway pond. According to the utility model, the problems of large-scale culture and standardized industrial microalgae culture production are solved; c, N, P and other nutrients in the culture wastewater are captured in an ecological chain manner and converted into microalgae products with high added values, so that resource utilization of the culture wastewater is realized.

Method for synthesizing PHA (polyhydroxyalkanoate) by coupling membrane-mediated algae photosynthetic oxygen production with mixed flora

Resumen de: CN121518594A

The invention relates to the technical field of pollutant resource utilization, in particular to a method for synthesizing PHA by coupling membrane-mediated algae photosynthetic oxygen production with mixed flora. According to the method disclosed by the invention, the double-sided hydrophobic membrane is used as a gas-phase mass transfer interface to construct a separated double-chamber reactor system in which microalgae and florae are spatially separated but are gas-coupled, so that a traditional aeration oxygen supply mode is replaced, and the energy consumption in the reaction process is effectively reduced. By optimizing the key process parameters of the microalgae-flora, the PHA content which is equivalent to that under traditional aeration oxygen supply is realized, the energy consumption in the PHA biosynthesis process is remarkably reduced, the carbon emission of the process is remarkably reduced, and the sustainable development of the biodegradable material industry is positively promoted.

Artificial cyanobacteria crust inoculant as well as preparation method and application thereof

Resumen de: CN121518308A

The invention discloses an artificial cyanobacteria crust inoculant as well as a preparation method and application thereof. The artificial cyanobacteria crust inoculant comprises a strain, a mixed matrix and water, the strain is composed of a blue-green algae group and a bacterial group; the mixed matrix comprises sandy soil and loam; the biomass of the blue-green algae group is 20-40 g/m < 2 >, and the biomass of the bacterial group is 150-250 g/m < 2 >. According to the method disclosed by the invention, the blue-green algae and the mixed strains are combined for use, so that the problems that a biological synergistic micro-ecological structure cannot be formed due to single biological composition of a traditional artificial blue-green algae crust inoculant, and ecological restoration of a sand area lags behind and is long in period are solved; the invention aims to construct a desert cyanobacteria crust inoculant formula adaptive to a compound biological group so as to accelerate ecological restoration of a desert area.

Carotenoid production methods using raceway pond systems

Resumen de: GB2643103A

A method for producing a carotenoid, wherein the method comprises a first algal culture phase comprising culturing marine carotenoid-producing microalgae in a first series of connected raceway ponds arranged in stages and the algae are maintained in the exponential growth phase by successive dilution with seawater and nutrient addition. The second algal culture phase comprises culturing the algae in one or more induction raceway ponds that are connected to the first series of connected raceway ponds from the first stage, wherein the algae are cultured in shallower water than in the final raceway pond of the first series of connected raceways ponds and in the presence of a low concentration of nitrogen, thereby inducing the algae to increase carotenoid production. The harvest phase then comprises harvesting algae from one or more of the induction raceway ponds followed by an extraction phase comprising extracting the carotenoid from the algae. A method for producing lutein, zeaxanthin and violaxanthin is also disclosed.

DEVICE AND PROCEDURE FOR ONLINE MEASUREMENT OF BIOMASS CONCENTRATION IN MICROALGAE CULTURES

Resumen de: EP4692297A2

The device comprises an absorbance sensor (3), which works with three wavelengths between 400 and 700 nm, intended to emit and collect light reflected from the culture (1), and a sampling pump (2) to the circulation of the culture (1) through the absorbance sensor (3). For its part, the procedure includes the steps of illuminating the culture (1) with light with three different wavelengths, between 400 and 700 nm, collecting a light reflected from the crop (1), and obtaining the RGB colour coordinates. of the reflected light, obtain the absorbance from the RGB coordinates, perform a regression with absorbance and reference concentration data, and obtain the biomass concentration in the culture (1).

METHOD TO IMPROVE THE BIOAVAILABILITY OF CAROTENOIDS IN MICROALGAE MATRICES (Machine-translation by Google Translate, not legally binding)

Resumen de: ES3055409A1

Method for improving the bioavailability of carotenoids in microalgae matrices. The present invention relates to a method for improving the bioavailability of carotenoids in microalgae matrices, as well as in food, cosmetic, or pharmaceutical compositions comprising such microalgae matrices. More specifically, the method of the invention comprises milling the microalgae matrix or applying ultrasound to the microalgae matrix. (Machine-translation by Google Translate, not legally binding)

Device and method for improving protein content of microalgae by utilizing agricultural wastewater culture

Resumen de: CN121495666A

The invention provides a device and a method for improving microalgae protein content by agricultural wastewater culture, the device comprises a wastewater treatment assembly, a microalgae culture assembly, a microalgae collection assembly and a connection assembly, the wastewater treatment device pretreats wastewater through graded filtration and adsorption, and the microalgae culture device uses a spherical culture bottle, a honeycomb assembly and a light guide path to regulate and control the environment. The collecting device collects microalgae through the flusher and the filter membrane, and the connecting assembly realizes device linkage; due to the design of the light guide path, the light intensity in the microalgae culture device is consistent, and the light guide path is combined with the honeycomb microalgae culture assembly, so that the generation of active oxygen is reduced. Through nitrogen-deficient and nitrogen-rich culture and in combination with plant hormone regulation, the protein content of the microalgae is increased. According to the method, the removal rates of four key water quality indexes such as total nitrogen, total phosphorus and COD in the agricultural wastewater all exceed 80%, the protein content of the microalgae is increased, the microalgae can be used as energy or feed, and the purposes of waste recycling and low carbon are achieved.

Microalgae easy to digest for thermostatic animals

Resumen de: CN121495927A

The invention belongs to the technical field of biology. The invention particularly discloses a microalgae starting element with a thermosensitive transcription characteristic and an application of the microalgae starting element. According to the present invention, the microalgae capable of improving the digestion efficiency of the thermostatic animal is obtained by carrying out gene modification on the microalgae, and the microalgae starting element with the thermosensitive transcription characteristic is PNoED, and has the following characteristics: 1) the microalgae starting element has a base sequence represented by SEQ ID NO: 1; or (2) the nucleotide sequence has more than 95% of homology with the nucleotide sequence limited by SEQ ID NO: 1. The starting element obtained by the invention is reported for the first time in microalgae, and the starting element has transcription driving force obviously higher than 25 DEG C at 35 DEG C. At the temperature of 35 DEG C, cell walls of the microalgae obtained by the method are thinned, so that the microalgae are easily digested by constant-temperature animals such as mammals, and the method has wide application potential in the industries of food, health care products and medicines.

Artificial bionic leaf carbon sequestration and oxygen production device

Resumen de: CN121489201A

The invention provides an artificial bionic leaf carbon sequestration and oxygen production device which comprises an artificial leaf plate system, a microalgae-containing organism culture system is arranged in the artificial leaf plate system, and the artificial leaf plate system is connected with a culture solution conveying system and an oxygen collection system; microalgae is used as an air purification carrier, carbon dioxide is fixed and oxygen is generated by utilizing the photosynthesis effect, and meanwhile, carbon-containing energy is generated through conversion. The common effects of purifying air, delaying global warming and collecting energy materials are achieved to a certain extent, and meanwhile cross compensation and common combination of the textile collar material field, the biological field, the environmental engineering field and the energy field are promoted.

AQYS21 Heterotrophic culture method of Asterarcys quadricellulare AQYS21 microalgae and use thereof

Resumen de: KR20260019117A

본 발명은 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류의 종속영양 배양 방법, 및 이의 이용에 관한 것으로, 빛이 차단된 암배양 조건에서 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류를 종속영양 배양할 수 있는 조건을 제공해고, 상기 종속영양 배양된 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류의 광합성 색소, 영양성분의 변화를 분석한 후, 알테미아(Artemia franciscana) 유생의 생존율 및 성장을 향상시킴을 확인함으로써, 아스테라시스 쿼드리셀룰라레 AQYS21 (Asterarcys quadricellulare AQYS21) 미세조류의 종속영양 배양 방법 및 이를 통해 제조된 알테미아(Artemia franciscana) 유생 성장용 조성물을 제공한다.

Method for quickly starting phycomycete granular sludge based on light and dark regulation and directional inoculation

Resumen de: CN121494204A

The invention relates to a method for rapidly starting phycomycete granular sludge based on light and dark regulation and directional inoculation, and belongs to the technical field of environmental bioengineering and water pollution control. According to the method, functional microorganisms are directionally enriched and pre-cultured, activated sludge enriched with phosphorus-accumulating bacteria and oxygen-producing cyanobacteria are jointly inoculated into a reactor, a sequencing batch operation mode of staged dynamic light and dark period regulation is adopted, and granulation is enhanced by combining hydraulic selection pressure. The problems that an existing phycomycete aerobic granular sludge technology is high in illumination dependence, poor in system stability and too long in starting period are solved, the system stably reaches the standard, aeration energy consumption is greatly reduced compared with a traditional technology, the nitrogen and phosphorus removal efficiency is synchronously improved, and the method is suitable for industrial and municipal sewage treatment and has wide application prospects. And the method has remarkable energy-saving advantage and engineering application value especially for treatment scenes of wastewater containing refractory organics.

Acetate-resistant urea-resistant chlorella as well as breeding method and application thereof

Resumen de: CN121495705A

The invention discloses chlorella capable of resisting acetate and urea and a breeding method and application thereof, and relates to the technical field of microorganisms, the chlorella is a Sorokiniana mutant strain, the classification name of the chlorella is Chlorella sorokiniana-TongWei-01, the chlorella is preserved in the China General Microbiological Culture Collection Center at 2025-12-1, and the preservation number of the chlorella is CGMCC NO. The address of the preservation unit is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No.46630. According to the method, large-scale culture can be performed by taking acetic acid/sodium acetate as a unique carbon source and urea as a unique nitrogen source, the method has excellent acetic acid utilization efficiency and urea tolerance, toxicity interference is resisted while two substrates are efficiently converted, high-density culture supported by a cheap carbon-nitrogen source is realized, and a core algae species support is provided for large-scale production of microalgae.

Microalgae carbon sequestration system and microalgae carbon sequestration method thereof

Resumen de: CN121472043A

The invention discloses a microalgae carbon sequestration system and a microalgae carbon sequestration method thereof, and belongs to the technical field of microalgae carbon sequestration. The system comprises purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco), purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco), purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco), purified ribulose-1, 5-diphosphate carboxylation oxidase (Rubisco) The invention discloses a chitosan-silicon dioxide hybrid gel microsphere for immobilizing ribulose-1, 5-diphosphate carboxylation oxidase, the particle size of the chitosan-silicon dioxide hybrid gel microsphere is 150-250 microns, the porosity is 40-60%, the pore diameter is 5-20 nm, and carbonic anhydrase is optionally contained in the chitosan-silicon dioxide hybrid gel microsphere; the living microalgae cells are suspended in the culture solution, and the living microalgae cells can freely enter and exit from the peripheral area of the chitosan-silicon dioxide hybrid gel microspheres and cannot penetrate through pore channels of the chitosan-silicon dioxide hybrid gel microspheres; and the photobioreactor is used for accommodating a culture solution and providing illumination for the living microalgae cells. According to the invention, the increase of microalgae biomass can be realized, and the efficiency of fixing CO2 by microalgae cells is improved.

Blue-green algae tRNA switch and application thereof

Resumen de: CN121472212A

The invention relates to the technical field of biology, in particular to a cyanobacteria tRNA switch and application thereof. The tRNA anti-escape switch suitable for blue-green algae is developed, meanwhile, the expression application condition of blue-green algae genes is screened, appropriate reporter genes are selected, and a reporting system matched with the tRNA anti-escape switch is constructed. The tRNA anti-escape switch and the tRNA anti-escape switch report system provided by the invention can be used for blue-green algae, a traditional gene regulation mode of the blue-green algae is changed, and a new thought and a new method are provided for blue-green algae gene editing.

Microalgae bioreactor, wastewater treatment method and wastewater treatment device

Resumen de: CN121470690A

The invention relates to the technical field of wastewater treatment, and provides a microalgae bioreactor, a wastewater treatment method and a wastewater treatment device. The microalgae bioreactor comprises a shell and a hydrogel loading net, the shell is filled with algae liquid, a gas inlet pipe, a water inlet pipe and a light source are further arranged on the shell, and the gas inlet pipe is used for introducing carbon source gas into the shell; the water inlet pipe is used for introducing wastewater into the shell, and the light source is used for providing illumination into the shell. The multiple hydrogel loading nets are arranged in the algae liquid in the shell, and materials of the hydrogel loading nets contain at least one of hydroxyl, sulfonic acid groups and carboxyl. The microalgae bioreactor disclosed by the invention is high in microalgae reaction efficiency and can be used for conveniently removing microalgae.

Recovery device for microalgae wastewater treatment

Resumen de: CN121466663A

The invention relates to the technical field of wastewater treatment, and discloses a microalgae wastewater treatment recovery device which comprises a filter vat, a motor is fixedly connected to the top of the filter vat, a transmission rod is fixedly connected to the output end of the motor, a fixing ring is fixedly connected to the surface of the filter vat, and supporting legs are fixedly connected to the surface of the fixing ring. By arranging the vibrating mechanism, a motor is started firstly, when the motor is started, a transmission rod is driven to rotate, when the transmission rod rotates, a rotating shaft is driven to rotate, when the rotating shaft rotates, a vibrating roller is driven to rotate, and when the vibrating roller rotates, the surface of the vibrating roller rubs with the surface of a contact roller to generate a vibration sense; when the contact roller makes contact with the vibration roller and pushes the driven roller in the mutually-away direction, the driven roller slides on the inner wall of the mounting cylinder in the mutually-away direction when being pushed, and when the driven roller moves and drives the sliding ring to move, the sliding ring drives the sliding rod to slide on the inner wall of the supporting frame.

Light-dark alternating folded plate type raceway pond photobioreactor for sewage treatment

Resumen de: CN223879557U

The utility model relates to a light-dark alternating folded plate type raceway pond photobioreactor for sewage treatment, which comprises an S-shaped bent raceway pond, a water inlet of the raceway pond is connected with a water inlet pump, a water outlet of the raceway pond is connected with a water storage barrel in series, and the outer surface of the raceway pond is a shading layer. A folded plate reaction area and a light-dark alternating reaction area are sequentially arranged in the runway pond from bottom to top, the folded plate reaction area is provided with a plurality of folded plates arranged at intervals in the length direction of the runway pond, the light-dark alternating reaction area is provided with simulation light sources and a plurality of light shielding plates, and the simulation light sources are arranged above the light shielding plates at intervals. The shading plates are arranged in the horizontal direction, and light-transmitting intervals are arranged between the shading plates. The folded plate reaction area promotes homogenization of algae liquid in the raceway pond and substances in sewage, light-dark alternating irradiation is carried out on microalgae in combination with shading plates arranged at intervals in the light-dark alternating reaction area and light source irradiation, the photosynthesis and breathing efficiency of the microalgae is improved, treatment of refractory pollutants by the microalgae is promoted, and conversion and uti

THIN-FILM PHOTOMICROBIAL BIOREACTOR SYSTEMS FOR THE PRODUCTION OF SECRETED CHEMICALS

Resumen de: WO2026030733A1

Provided herein are photobioreactor systems that facilitate the culture of thin films of phototrophic microorganisms to produce extracellular chemicals using sunlight and CO₂. These systems greatly reduce water and energy needs compared to traditional (e.g., suspension-based) methods employed in bioreactors. By immobilizing the microorganisms in a thin layer, these systems optimize light exposure and enable higher cell density and easier product separation, making the process more sustainable and cost-effective. These systems can be used to culture a variety of phototrophic microorganisms, including bacteria, cyanobacteria, algae, and fungi. These systems and methods can be used to produce a wide variety of important chemical products, including fuels, pharmaceuticals, and industrial chemicals including ammonia.

METHOD FOR PRODUCING MICROALGAE CONCENTRATES WITH LOW VISCOSITY

Resumen de: US20260035654A1

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.

RED ALGAE BIOMASS EXTRACT, AND COSMETIC USE THEREOF FOR ELIMINATING SKIN IMPERFECTIONS

Resumen de: MX2026000033A

The present invention relates to a photosensitizing polar biomass extract extracted from phycocyanin-producing organisms, in particular unicellular red algae (URA) or cyanobacteria, and to the cosmetic use thereof for preventing and/or eliminating skin imperfections, i.e. for improving the look of the skin.

Bacteria-algae complex, preparation method thereof and sewage treatment method

Resumen de: CN121450428A

The invention belongs to the technical field of sewage treatment, and particularly discloses a bacteria-algae complex, a preparation method thereof and a sewage treatment method. The method comprises the following steps: firstly, establishing a short-cut nitrification coupling anaerobic ammonia oxidation system to treat sewage, gradually reducing the ammonia nitrogen concentration of the sewage after stable operation, and enriching sludge in the treatment process; the method comprises the following steps of: firstly, adding microalgae (including Scenedesmus, Chlorella and/or Auxenochlorella) into a treatment system, inoculating the microalgae into sludge, continuously carrying out short-cut nitrification coupled anaerobic ammonia oxidation treatment, gradually reducing the settling time in the treatment process, and separating settled substances in the treatment process to obtain the bacteria-algae complex. According to the present invention, with the application of the bacteria-algae complex, the low ammonia nitrogen concentration sewage treatment can be achieved, the treatment aeration rate can be reduced, the dissolved oxygen distribution can be improved, and the sludge settleability can be improved.

Passive dosing device for generating organic pollutants with constant free state concentration as well as preparation method and application of passive dosing device

Resumen de: CN121449221A

The invention belongs to the technical field of biological experiment devices, and particularly relates to a passive drug delivery device for generating organic pollutants with constant free state concentration as well as a preparation method and application of the passive drug delivery device. According to the method, a PDMS coating coated at the bottom of a device bottle is modified through Span80, then in the step of pre-loading organic pollutants, ultrapure water is added for multiple times, the solubility of the organic pollutants in a methanol/water solution is reduced, the organic pollutants are pushed into the PDMS coating step by step, and therefore the passive drug delivery device is manufactured. According to the device, the microalgae exposure experiment is closer to a real water environment, and the microalgae can obtain a stable organic pollutant source in the long-time exposure experiment; moreover, through the design and optimization of the passive drug delivery device, the problem that the microalgae are easy to adhere to the wall (especially adhere to the bottom and adhere to the PDMS substrate) to grow in the pollutant exposure experiment is solved, so that the population exposure is more uniform, and the experimental result is more reliable.

Bacterium-algae symbiotic system repairing preparation as well as preparation method and application thereof

Resumen de: CN121450429A

The invention belongs to the technical field of microorganisms, and particularly discloses a bacterium-algae symbiotic system repairing preparation and a preparation method and application thereof. In particular to a bacterium-algae symbiotic system repairing preparation, the repairing preparation comprises acid-resistant microalgae and acid-resistant bacteria, the acid-resistant microalgae is chlamydomonas SAG 2486, and the acid-resistant bacteria comprise serratia liquefaciens AN41 and serratia JG-4-2. The invention discloses a bacterium-algae symbiotic system repairing preparation and a preparation method and application thereof, the bacterium-algae symbiotic system repairing preparation naturally improves soil through biological metabolism, and avoids the risks of soil hardening, ion imbalance, secondary salinization and the like caused by a chemical acid regulating agent.

Ultralow-temperature cryopreservation method for tribonema

Resumen de: CN121450426A

The invention discloses an ultra-low temperature cryopreservation method for tribonema, which belongs to the technical field of microalgae culture and comprises the following steps: culturing algae seeds: inoculating the algae seeds, and carrying out aerobic culture for 7-10 days until a stable phase to obtain an algae solution; algae liquid preparation: diluting the algae liquid with a BBM culture medium, and adding the diluted algae liquid into the sterilized cryopreservation tube; precooling the algae liquid: putting the cryopreservation tube added with the algae liquid into a refrigerator for precooling; adding a composite cryoprotectant: adding the cryoprotectant into the precooled algae liquid cryopreservation tube, and uniformly mixing the cryoprotectant and the precooled algae liquid cryopreservation tube; programmed cooling: putting the cryopreservation tube into a programmed cooling box, and putting the cryopreservation tube into a refrigerator for programmed cooling; and ultralow-temperature cryopreservation: putting the seeds into liquid nitrogen for preserving the seeds. The method is simple, operation is easy, pollution is not prone to occurring, and the breed conservation time is long.

Bacteria-algae symbiotic reaction device and method for treating sludge digestion liquid

Nº publicación: CN121449224A 03/02/2026

Solicitante:

BEIJING UNIV OF TECHNOLOGY
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Resumen de: CN121449224A

The invention discloses an algal-bacterial symbiotic reaction device and method for treating sludge digestion liquid, and belongs to the technical field of water treatment.The algal-bacterial symbiotic reaction device comprises a reactor body, a heating assembly and a controller; the heating assembly is used for heating the reactor main body; a stirrer is arranged in the reactor main body; a microporous aeration disc is arranged at the bottom of the reactor main body and is connected with an aeration pump through a pipeline; a lamp source is arranged outside the reactor main body and is used for providing illumination for the reactor main body; sludge and microalgae are put into the reactor main body; the heating assembly and the lamp source are electrically connected with the controller. According to the present invention, the CANON process is coupled with the algae-bacteria symbiotic system to treat the sludge digestion liquid, such that the treatment efficiency of the sludge digestion liquid is improved, the energy consumed by aeration is substantially reduced, and the full-automatic control operation of the reactor is achieved.