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Microalgae bioreactor and sewage treatment method

Resumen de: CN120987475A

The invention relates to a microalgae bioreactor and a sewage treatment method. The microalgae bioreactor comprises a shell, a filter bed, an LED light source and a spraying device, a water outlet and a reflux inlet are formed in the lower part of the shell; the filter bed is made of a porous material and is arranged in the shell; the number of the LED light sources is at least one, and the LED light sources are arranged outside and/or inside the shell; the spraying device is arranged above the filter bed; a water inlet connected with a sewage inlet pipeline is formed in the spraying device; the water inlet is also connected with the reflux inlet through a reflux pipeline. According to the microalgae bioreactor disclosed by the invention, nitrogen and phosphorus substances in sewage are effectively removed by utilizing a microalgae biological membrane, and the effect of recycling nitrogen and phosphorus nutrient elements is realized.

Preparation method of microalgae gel beads for water treatment

Resumen de: CN120989069A

The invention provides a preparation method of microalgae gel balls for water treatment, and relates to the field of water treatment, and the preparation method comprises the following steps: step S1, preparing a composite suspension, step S2, carrying out primary crosslinking to form balls, step S3, carrying out secondary crosslinking, step S4, carrying out in-situ enhancement, and step S5, coating. According to the method, microalgae is subjected to compound modification to obtain gel beads, and the finished product gel beads are obtained through coating, so that the swelling resistance and mechanical strength of the gel beads are improved, and the situation that a compact gel network and a multi-layer coating structure hinder nutrient substances, carbon dioxide and the like in a water body from diffusing to microalgae cells is avoided; the photosynthesis efficiency and pollution degradation capability of the microalgae are ensured, and the water treatment efficiency of the microalgae is improved.

Culture method and application of beta-1, 3-glucan producing microalgae

Resumen de: CN120988846A

The invention discloses a culture method and application of beta-1, 3-glucan-producing microalgae, and realizes high-efficiency synergy from microalgae culture to separation. According to the enrichment culture medium, by optimizing the ratio of carbon and nitrogen sources and nutritional ingredients, efficient accumulation of beta-1, 3-glucan can be remarkably improved, meanwhile, the microalgae biomass is promoted, and the problem of low product content in conventional culture is solved. The matched microalgae culture method breaks through the limitation that traditional plate streak bacterial colonies are mixed, water drop separation consumes time and is prone to pollution, the high-purity single strain is accurately extracted from a complex water sample, the operation standardization degree is high, and the manual randomness influence is reduced. Through the synergistic application of the two, the microalgae with high biomass and high glucan content can be efficiently obtained, the separation purity can be guaranteed, high-quality resources are provided for scientific research and industrial production, and the application of the microalgae in the fields of food, medicine and the like is promoted.

Compound microbial agent and application thereof in prevention and control of cyanobacterial bloom

Resumen de: CN120988904A

The invention discloses a compound microbial agent and application thereof in prevention and control of cyanobacterial bloom, two algicidal bacteria are obtained through screening, the preservation number is CCTCC NO: M 2024698, and the preservation number is CCTCC NO: M 2024699, and the compound microbial agent is proved to have obvious inhibition effects on a plurality of cyanobacteria bacteria such as microcystis aeruginosa, lacustrine triphora, anabaena and cylindrocystis, and can be used for preventing and controlling cyanobacteria bloom. And the composite bacterial agent combined by the two algicidal bacteria has a remarkable algicidal effect on algal blooms in natural water areas, can be applied to the field of biological prevention and control of freshwater cyanobacterial blooms, and provides an ideal choice for treatment of cyanobacterial blooms in water bodies.

Sampling device in selenium-enriched microalgae industrial culture

Resumen de: CN223576486U

The utility model belongs to the technical field of industrial culture of microalgae, and particularly relates to a sampling device in industrial culture of selenium-enriched microalgae, which comprises a culture container, a mounting seat, a clamping and limiting component, an anti-skid guide component, an elastic telescopic pipe, an end cover, a sampling hose and a reset component, the clamping and limiting assembly is arranged on the mounting base, the mounting base is detachably connected with the breeding container through the clamping and limiting assembly, and the sampling hose is connected with the mounting base through the anti-skid guide assembly. The sampling device is reasonable in design, compact in structure and simple and convenient to operate, the stability and reliability of sampling are improved, stable connection with a culture container can be ensured, displacement caused by vibration or external force is prevented, meanwhile, the hose can be prevented from slipping and excessively bending, the smoothness of the sampling process and the integrity of a sample are ensured, and the sampling efficiency is improved. The device is convenient to maintain, disassemble, assemble and replace, the contamination risk of cultures can be reduced, and the effects of simplifying the operation process and improving the working efficiency can be achieved.

Improved culture solution for culturing haematococcus pluvialis and preparation method thereof

Resumen de: CN120988847A

The invention belongs to the technical field of microalgae culture, and particularly provides an improved culture solution for haematococcus pluvialis culture and a preparation method thereof. The culture solution is prepared from 1.5 to 2.5 mg/L of alpha-cyclodextrin embedded sodium acetate, 0.5 to 0.5 mg/L of cobalt nitrate hexahydrate, 0.05 to 1 mg/L of copper sulfate, 0.3 to 0.9 mg/L of zinc sulfate heptahydrate, 1.5 to 2.5 mg/L of manganese chloride tetrahydrate, 3 to 7 mg/L of boric acid, 8 to 20 mg/L of sodium carbonate, 10.0 to 20.0 mg/L of disodium hydrogen phosphate dihydrate, 1200 to 1400 mg/L of sodium nitrate, 0.5 to 3 mg/L of EDTA (Ethylene Diamine Tetraacetic Acid), 20 to 50 mg/L of calcium chloride, 70 to 100 mg/L of magnesium sulfate heptahydrate, 50 to 80 mg/L of monopotassium phosphate trihydrate, 0.5 to 1.0 mg/L of ferrous sulfate heptahydrate and 0.01 to 0.03 mg/L of ammonium molybdate tetrahydrate. According to the invention, alpha-cyclodextrin is introduced to embed sodium acetate, ferrous sulfate heptahydrate and ammonium molybdate tetrahydrate are added, and a sodium carbonate-disodium hydrogen phosphate-potassium dihydrogen phosphate composite buffer system is constructed, so that the problem of easy imbalance of traditional carbon source supply is solved, and the defect of single and short elements of a traditional formula can be overcome; pH fluctuation caused by cell metabolism acid production during high-density culture can be effectively coped w

Separation method for preparing high-purity single-cell protein through biotransformation of one-carbon compound

Resumen de: CN120988054A

The invention relates to the technical field of C07K, in particular to a separation method for preparing high-purity single-cell protein by biotransformation of a one-carbon compound, which comprises the following steps: pretreatment; deep purification; drying at low temperature; through a combined process of pretreatment, deep purification and low-temperature drying, the problems of low recovery rate, insufficient purity and loss of functional components in the prior art are systematically solved. Compared with a traditional process, the method has the advantages that the protein recovery rate after separation is greatly improved, the purity is obviously improved, and the DHA/EPA retention rate is further improved. The technical scheme provided by the invention is particularly suitable for separation of single-cell proteins rich in functional lipids, such as microalgae, methanol yeast, methanol bacteria, methane-oxidizing bacteria mixed bacteria and the like, and an efficient technical scheme is provided for industrial application of biotransformation of the one-carbon compound.

CLOSED PHOTOBIOREACTOR SYSTEM

Resumen de: WO2025239861A1

The present invention relates to the bioreactors, more specifically, to a closed photobioreactor system, characterized in that said closed photobioreactor system comprises at least one LED (1) that supplies the light energy required for the microalgal photosynthesis, a pipeline (4) that delivers to the system the carbon dioxide (CO2) containing air bubbles coming from a pump (2), a separator (3) that enables the harvest and the collection of the microalgae, and a solar panel or wind turbine that is intended to supply the electric power for the system.

USE OF A MICROALGAE EXTRACT, ALONE OR IN COMBINATION, FOR IMPROVING COGNITIVE ABILITIES

Resumen de: US2025352593A1

The invention relates to the use of an extract of Phaeodactylum tricornutum alone or in combination with an extract chosen from a guarana (Paullinia cupana) extract, a ginseng (Panax ginseng) extract, a Ginkgo biloba extract, a Nelumbo nucifera extract, a Centella asiatica extract, a Piper nigrum extract, a Bacopa monnieri extract or any combination thereof and/or a compound chosen from arginine, creatine, caffeine, theanine, vitamin C, vitamin E, vitamin B, theophylline, paraxanthine, theobromine, rosmarinic acid, ellagic acid, cinnamaldehyde or any combination thereof, for maintaining and/or increasing data processing speed and/or concentration in healthy mammals. The combination of the extract of P. tricornutum and one of these extracts or one of these compounds is also described. The invention also relates to a composition comprising the combination according to the invention.

Paint comprising microbial cells and water-based paint vehicle

Nº publicación: US2025354021A1 20/11/2025

Solicitante:

BLANK CARRINE [US]
HINMAN NANCY W [US]
Blank Carrine,
Hinman Nancy W