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Seedling raising method for improving chlamys farreri metamorphosis rate

Resumen de: CN121286378A

The invention discloses a breeding method for increasing the metamorphosis rate of chlamys farreri, and belongs to the technical field of chlamys farreri breeding. The number and the putting position of substratum in a breeding pond are reasonably controlled, compound fresh bait is applied, the proportion of microalgae in the bait and the concentration of the applied bait are controlled, and EM bacteria are applied, so that the metamorphosis rate of chlamys farreri is increased; by means of the method, the chlamys farreri larva metamorphosis rate is increased, manual operation and seawater consumption in the larva metamorphosis period are reduced, and the method has important significance in improving the seedling raising effect and improving economic benefits.

Composition with anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects and application thereof

Resumen de: CN121287566A

The invention relates to a composition with anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects and application thereof. The composition with anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects comprises golden microalgae and a simulated extracellular matrix protein (ECMP) combination, and the mass ratio of the golden microalgae to the simulated extracellular matrix protein (ECMP) combination is (0.1-10): (0.5-10); wherein the simulated extracellular matrix protein combination ECMP is formed by combining collagen, elastin and fibronectin, and the mass ratio of the collagen to the elastin to the fibronectin is 1: (1-5): (1-5). The anti-aging, anti-wrinkle, elasticity enhancing and skin barrier repairing effects are achieved by adding the simulated extracellular matrix protein combination ECMP and combining the golden microalgae. According to the invention, the improvement of anti-oxidation and anti-inflammation capacities is comprehensively considered, the endogenous matrix protein production capacity is also improved while exogenous matrix protein supplementation is carried out, and the anti-oxidation and anti-inflammation damage degradation capacity is improved.

Microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification method and device

Resumen de: CN121292643A

The invention provides a microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification method and a microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification device. The method comprises the following steps: adding a photocatalyst into a mixed flora taking anaerobic ammonia oxidation as a core, exciting photo-induced electrons to induce in-situ enrichment of microalgae, and constructing a photocatalytic coupled bacteria-algae hybrid system. A'starvation-trace addition 'circulating feeding strategy is adopted, interspecific feeding of heterotrophic bacteria with algae source glycogen as a unique carbon source is achieved, salicylic acid is synthesized to promote loading of microalgae P450 enzyme cofactors (ferriporphyrin and Fe-S clusters), generation of NADPH and enrichment of NADPH in a P450 positioning area are improved in combination with'segmented light distribution', and efficient activation of P450 enzyme is completed. The method comprises the following steps: catalyzing ammonia nitrogen to generate hydroxylamine through P450 enzyme under the condition that ammonia nitrogen is used as a unique water inlet condition, so as to form a microalgae P450 enzyme mediated non-nitrite dependent anaerobic ammonia oxidation denitrification mode. The method breaks through the traditional bottleneck of scarce nitrite depending on sewage, and has the advantages of high denitrification efficiency, greenhouse ga

Microalgae culture and soil remediation integrated device based on photobioreactor

Resumen de: CN121289237A

The invention relates to the technical field of soil remediation, and discloses a photobioreactor-based microalgae culture and soil remediation integrated device which comprises a mounting frame, at least one reactor body is mounted on the outer side of the mounting frame, and a third conveying pipe is connected to the bottom of the reactor body through a pipeline; a plurality of fourth conveying pipes are communicated with the outer side of the third conveying pipe, drippers are connected to the ends, away from the third conveying pipe, of the fourth conveying pipes, and a second control valve is installed on the outer side of the third conveying pipe; a dispersion mechanism; a carbon feeding mechanism; a carbon spoiler mechanism; a distance adjusting mechanism; a sensor module; and a central control module. According to the invention, the microalgae culture efficiency is improved through the efficient dispersion mechanism; a sensor and a central control module are utilized to realize full-automatic control of culture and liquid discharge processes, so that the automation level is improved; and the integrated distance-adjustable drip irrigation mechanism can accurately apply fresh algae liquid to target soil, so that the pertinence and applicability of soil remediation are enhanced.

Method for controlling chrysophyceae pollution in chlorella culture by utilizing extracellular polymer generated in microalgae culture process

Resumen de: CN121294150A

The invention relates to a method for controlling chrysophyceae pollution in chlorella culture by using an extracellular polymer generated in a microalgae culture process in the field of bioengineering and environmental engineering, which comprises the following steps: firstly, culturing microalgae in a culture medium or wastewater, collecting the microalgae, extracting the extracellular polymer, adding the extracellular polymer into a chlorella culture environment, and culturing the chlorella in a culture medium or wastewater; the method is used for preventing and treating predatory chrysophyta in the microalgae culture process. The method provided by the invention has the advantages of safety, no pollution, simplicity in operation, low cost and the like, and can be suitable for culture processes of chlorella of different scales and different types.

Rapid microalgae culture method for shellfish seedling culture based on photobioreactor and cement pond

Resumen de: CN121294128A

The invention relates to the technical field of shellfish breeding, in particular to a rapid microalgae breeding method for shellfish breeding based on a photobioreactor and a cement pool. The method comprises the following steps: firstly, optimizing a photobioreactor structure and an illumination layout, controlling a culture environment by matching with a multi-parameter regulation and control system, breeding microalgae seeds with high resistance and high carbon sequestration capacity, culturing to a preset density, and partially harvesting and inoculating into a cement pond, after partial harvest, the photobioreactor realizes continuous culture by supplementing disinfected seawater and nutritive salt; the harvested high-density microalgae are inoculated into a cement pond, nutritive salt is supplemented in a doubled mode, air and carbon dioxide mixed gas is used for continuous aerated culture, and the microalgae are promoted to rapidly reach the index growth period and used for being directly fed to shellfish larvae; according to the rapid microalgae breeding method for shellfish seedling culture, the yield and quality of microalgae are both considered, the success rate and productivity of aquatic seedling culture are effectively improved, the production cost and the labor intensity of workers are reduced, and the method is suitable for large-scale popularization.

DIRECT AIR CARBON SEQUESTRATION SYSTEM AND METHOD USING COMPOUND ALGAE LIQUID COUPLED WITH MOISTURE SWING ADSORBENT

Resumen de: WO2026007284A1

Provided are a direct air carbon sequestration system and method using a compound algae liquid coupled with a moisture swing adsorbent, relating to the technical field of air capture. The system comprises a CO2 adsorption device (2), a microalgae carbon sequestration device (3), and a solution-microalgae separation device (4). Ultralow-concentration carbon dioxide (400 ppm) in the atmosphere is captured by means of moisture swing adsorbents (5), and the carbon dioxide can be adsorbed by means of a compound algae liquid; on the basis of different pH values of the algae liquid, the CO2 adsorption device (2) uses different adsorption-desorption operating modes, so that the recycling rate of the adsorbents is greater than 80%; the algae liquid can be recycled by means of photosynthesis, and two carbon sources of a carbon-rich algae liquid and a high-concentration carbon dioxide gas are continuously and stably supplied; and therefore, direct air carbon dioxide capture and sequestration are achieved with high efficiency and low costs.

METHOD OF SYNTHESIZING A BIOLOGICAL PRODUCT AND RELATED PIPE ARRANGEMENT FOR PERFORMING THE METHOD

Resumen de: WO2026008156A1

A method of synthesizing a biological product (1) is presented. The method comprises (S1) supplying process water (2) to a pipe arrangement (10) with a plurality of pipe sections (11ij), wherein the pipe sections (11) are cascaded in a descending order, (S2) providing microalgae (3) to the process water (2), (S3) retaining the microalgae-enhanced process water (2, 3) in and letting it run through the pipe sections (11) consecutively, wherein the process water (2, 3) first enters an elevated pipe section (1111) and then enters a lower pipe section (1112) driven by gravity, and (S4) exposing the process water (2) in the pipe sections (11ij) to an irradiation (4) such that the microalgae (3) are allowed to grow under the irradiation (4), wherein a part of the water (H2O) evaporates. Moreover, a related pipe arrangement is presented.

METHOD FOR MANUFACTURING SALMON AQUACULTURE FEED USING NUTRIENT-RICH MICROALGAE SCHIZOCHYTRIUM SP. BIOMASS

Resumen de: EP4674278A1

A feed composition comprising microalgae-derived biomass according to the present application uses microalgae having a high content of protein, fat, and minerals and free of factors that degrade feed quality, and thus can be effectively used as a fish feed composition.

METHOD OF PRODUCING A FATTY ESTER FROM MICROALGAE

Resumen de: EP4674972A1

The invention relates to a method of producing an ester of a fatty acid and a C₁-C₄ alcohol, comprising successive steps of: cultivating cells of a microalga strain on a growth medium, harvesting the cultivated cells and concentrating them to obtain a wet cell pellet, suspending said wet cell pellet in an hydroalcoholic solution comprising said C₁-C₄ alcohol, incubating the cell suspension thus formed so as to form said ester of a fatty acid and a C₁-C₄ alcohol by transesterification and/or esterification of lipids produced by the microalga cells catalyzed by endogenous enzymes of said cells, and recovering said ester of a fatty acid and a C₁-C₄ alcohol from said cell suspension. The growth medium can advantageously be a dark fermentation effluent.

Aquaculture wastewater deep purification and algae fertilizer co-production system based on algal-bacterial symbiosis

Resumen de: CN121269974A

The invention relates to the technical field of wastewater treatment and resource utilization, and provides a culture wastewater deep purification and algae fertilizer co-production system based on algal-bacterial symbiosis, the system comprises an algal-bacterial symbiosis reaction zone, an intelligent regulation and control system and an algae fertilizer quality control system, the algal-bacterial symbiosis reaction zone comprises a biological membrane zone and a microalgae zone, the biological membrane area is used for treating the breeding wastewater and completing conversion from ammonia nitrogen to nitrite; the microalgae area is communicated with the biological membrane area, the wastewater treated by the biological membrane area enters the microalgae area, and the microalgae area is used for purifying the wastewater; the algae fertilizer quality control system is communicated with the water outlet end of the microalgae area, the algae fertilizer quality control system comprises an air flotation separation device and a drying machine, the air flotation separation device is used for purifying algae slurry, and the drying machine is connected with the air flotation separation device and is used for drying the separated algae fertilizer. The treatment effect on the breeding wastewater can be improved.

Microalgae carbon sequestration system and use method thereof

Resumen de: CN121270004A

The invention belongs to the technical field of microalgae carbon sequestration, and particularly relates to a microalgae carbon sequestration system, which comprises a precipitation sewage tank, a floating algae liquid tank, a primary reaction column and a water purification tank, sewage in the precipitation sewage tank and floating algae liquid in the floating algae liquid tank are respectively put into the primary reaction column for mixing, standing is carried out, and precipitates are formed; purified water in the first-stage reaction column flows into a purified water tank after being discharged. According to the invention, the sewage is precipitated by using the precipitation sewage tank, part of precipitates in the sewage are removed, then floating algae are added into the first-stage reaction column for removing ammonia nitrogen in the sewage, finally the sewage enters the second-stage reaction column, nitrate nitrogen in the sewage is removed by using fixed algae and nitrifying bacteria in the second-stage reaction column, and the whole system is connected in series, so that the sewage treatment efficiency is improved. Ammonia nitrogen and phosphorus in the sewage can be effectively removed.

Fuel production method using microalgae culture provided in a landfill

Resumen de: KR20260001796A

본 발명은 매립지에 미세조류 배양지를 구축하고 여기서 배양한 조류 바이오매스를 이용하여 바이오 항공유를 생산하는 기술에 대한 것이며, 매립 종료된 매립지의 안정화 부지 상부에 구비되는 미세조류 배양지를 설치하는 1단계; 상기 미세조류 배양지에서 미세조류를 배양하는 2단계; 및 상기 1단계에서 배양된 미세조류를 이용하여 항공유를 생산하는 3단계;를 포함하여 이루어지며, 매립지를 활용하며 매립지에서 배출되는 가스를 이용하여 미세조류를 배양하고 이를 통해 지속가능한 연료를 생산할 수 있는 효과가 발휘된다.

Method for reducing antibiotic-resistant bacteria and antibiotic-resistant genes in wastewater

Nº publicación: CN121269980A 06/01/2026

Solicitante:

ZHENGZHOU UNIV
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Resumen de: CN121269980A

The invention relates to the technical field of biological environmental protection, in particular to a method for reducing antibiotic-resistant bacteria and antibiotic-resistant genes in wastewater. The invention provides a method for reducing antibiotic resistance bacteria and antibiotic resistance genes in wastewater. The method comprises the following steps: mixing an extreme thermophilic and acidophilic microalgae culture with sewage, and culturing in a photobioreactor. According to the method, the extremely thermophilic and acidophilic microalgae are used for sewage treatment, so that not only can the abundance of ARB be reduced, but also the relative abundance of ARGs (qnrA, qnrS, tetW and intI1) in living bacteria can be reduced, and finally, the purpose of controlling ARG and ARB is achieved; meanwhile, the effect of the algae system for controlling the ARG and the ARB is better than that of a conventional secondary treatment system for controlling the ARG and the ARB, and the propagation of antibiotics to the environment can be reduced to the maximum extent.