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Organic wastewater treatment device coupling photocatalysis and microalgae carbon sequestration

Resumen de: CN119591286A

The invention discloses an organic wastewater treatment device coupling photocatalysis and microalgae carbon sequestration. The organic wastewater treatment device comprises a photocatalytic degradation device, a microalgae carbon sequestration device and a light guide nuclear pore filter membrane, the front end of the photocatalytic degradation device is provided with a water inlet, and the tail end is provided with a water outlet of which the pipe diameter is smaller than that of the water inlet; the light guide nuclear pore filter membrane is mounted at the top of the photocatalytic degradation device above the baffle plate; a feeding hole is formed in the top of the microalgae carbon sequestration device; a detachable visible light emitting plate is arranged in the microalgae carbon sequestration device. According to the method, electricity is generated in the photocatalytic degradation process, waste recycling is achieved, and generated carbon dioxide provides a carbon source for carbon sequestration microalgae. The microalgae absorb carbon dioxide generated by photocatalysis through photosynthesis. The microalgae cells are converted into energy substances such as biodiesel while realizing emission reduction, so that the effects of saving energy, reducing emission and improving the water treatment efficiency are realized.

Blue-green algae separation and purification method

Resumen de: CN119570683A

The invention provides a cyanobacteria separation and purification method. The method comprises the following steps: collecting a water sample; diluting the water sample; a step of culturing; a selection step; selecting a culture hole only with a single filament and without other cells by using a microscope, selecting a single algal filament from the remaining culture holes under the microscope by using a glass capillary tube, removing impurities and foreign matters attached to the surfaces of the algal cells, and transferring the algal cells into another culture hole for continuous culture; and enlarging the culture step. According to the method, the dilution culture method and the capillary separation method are combined for separation and purification of the cylindrospora, so that the separation and purification efficiency is improved.

Microalgae saline-alkali soil conditioner and application thereof

Resumen de: CN119570630A

The invention discloses a microalgae saline-alkali soil conditioner and application thereof, and belongs to the technical field of microalgae saline-alkali soil conditioners. The microalgae saline-alkali soil conditioner disclosed by the invention is prepared from three microalgae which are respectively chlorella sorojin, nodularia harneri and chlamydomonas reinhardtii, and the volume percentages of the three microalgae are respectively 40 to 60 percent, 20 to 30 percent and 20 to 30 percent. The invention further provides a method for improving saline-alkali soil by using the microalgae saline-alkali soil conditioner, after the microalgae saline-alkali soil conditioner is used, the saline-alkali content of the soil can be effectively reduced, the salt content of a saline-alkali soil plough layer is reduced by 10%-30%, and the pH value is reduced by 0.2-0.8. The product and the method provided by the invention have good application prospects in the aspect of saline-alkali soil improvement, and are worthy of vigorous popularization.

Method for enhancing sewage carbon sequestration performance of bacterium-algae system

Resumen de: CN119569238A

The invention discloses a method for enhancing the sewage carbon sequestration performance of a bacterium-algae system, and belongs to the technical field of sewage treatment pollution reduction and carbon reduction. According to the invention, the hydrogen production type composite photocatalytic material is used as a biological carrier for treating sewage by a bacteria-algae symbiotic system, so that the problem that microalgae are subjected to light inhibition under sunlight is effectively solved on the basis of ensuring the sewage treatment effect, thereby remarkably improving the light energy conversion efficiency of the microalgae and reducing the energy consumption of the microalgae. The efficient carbon sequestration of the sewage treated by the bacteria-algae symbiotic system is realized, and meanwhile, the hydrogen generated by the method can be recycled as energy gas, so that multiple effects are achieved. The method is helpful for promoting pollution reduction, carbon reduction and resource utilization of sewage treatment, and has a good application prospect.

Combined carbon sequestration method for treating radioactive strontium pollution of seawater by porphyridium

Resumen de: CN119569240A

The invention relates to the technical field of bioengineering, in particular to a combined carbon sequestration method for treating radioactive strontium pollution of seawater by porphyridium. The method comprises the following steps: inoculating a porphyridium strain into a radioactive strontium polluted seawater culture medium for treatment, adding a certain content of inorganic salt and trace element solution, continuously illuminating, and controlling the temperature, illumination intensity, sterile mixed gas ventilation rate and carbon dioxide ventilation concentration to realize the effect of treating seawater radioactive strontium pollution by porphyridium and combining carbon sequestration. The concentration of strontium element in seawater and the fixation of carbon dioxide are realized by utilizing the growth of porphyridium. According to the method, microalgae carbon sequestration is combined with wastewater treatment and biofuel production, so that the method has remarkable environmental and economic advantages, and the production cost and the energy consumption can be reduced to a certain extent. The method is easy to operate and low in cost and has certain universality.

Chlorella pyrenoidosa mutant strain and application thereof

Resumen de: CN119570629A

The invention relates to the technical field of microalgae biology, in particular to a chlorella pyrenoidosa mutant strain and application thereof. According to the invention, a mutagenesis screening mode is adopted to obtain a chlorella pyrenoidosa mutant strain which is named as RMCP012, the chlorella pyrenoidosa mutant strain can still grow quickly after being continuously cultured for one year and is stable in character, and the protein content of the chlorella pyrenoidosa mutant strain is equivalent to that of a wild type chlorella pyrenoidosa mutant strain. Meanwhile, the algal strain of the mutant strain is light green, the decoloring process of industrial production of algal source protein is greatly reduced, the industrial cost is reduced, and the mutant strain is a high-quality algal strain capable of being used for industrial production of protein. The invention further relates to a heterotrophic culture mode of the chlorella pyrenoidosa, so that the chlorella pyrenoidosa can grow quickly, and protein with a relatively high level can be accumulated.

Solid microalgae-containing composition for culturing fresh microalgae as well as preparation method and application of solid microalgae-containing composition

Resumen de: CN119570778A

The invention relates to the field of microalgae culture, in particular to a solid microalgae-containing composition for culturing fresh microalgae as well as a preparation method and application of the solid microalgae-containing composition. The composition containing the solid microalgae and used for culturing the fresh microalgae comprises live microalgae cells and food-grade gel. The viable microalgae cells are algae species with an appropriate pH value of 6 to 8.2 and/or algae species with an appropriate pH value of 8.3 to 13. The food grade gel is insoluble in the culture medium of microalgae and can support the growth of live microalgae cells. The composition containing the solid microalgae is aseptically packaged in the soft photobioreactor, and can be preserved for a long time. By utilizing the composition containing the solid microalgae disclosed by the invention, the sanitary fresh microalgae which can be directly eaten can be easily prepared by residents. According to the method, the sanitation problem of preparing the fresh microalgae by an existing liquid culture process is solved, and the tedious processes of harvesting algae cells, washing algae mud, cleaning and maintaining a culture device and the like in liquid culture can be avoided.

Photobioreactor for microalgae culture

Resumen de: CN222574616U

The photobioreactor comprises a bottom plate, a bottom cover is arranged on the bottom plate, a top cover is arranged on the upper side of the bottom cover, a culture cylinder is arranged between the bottom cover and the top cover, installation assemblies are arranged at the upper end and the lower end of the outer side wall of the culture cylinder, lamp tubes are arranged on the two sides of the culture cylinder, and the lamp tubes are connected with the bottom cover. The lamp tube is arranged between the two mounting assemblies, each mounting assembly comprises a mounting ring, the lamp tube is mounted between the two mounting assemblies, so that the lamp tube can rotate at a constant speed on the outer side of the culture cylinder, light emitted by the lamp tube is swept through the side face of the culture cylinder at a constant speed, a light source is prevented from stopping on one side of the culture cylinder for a long time, and the culture cylinder is prevented from being damaged. The microalgae are massively gathered on one side, close to the lamp tube, in the reactor to form shielding, so that the condition that the growth of part of the microalgae is blocked due to non-uniform growth of the microalgae in the reactor is prevented.

Microalgae harvesting device based on algal-bacterial symbiosis

Resumen de: CN222574660U

A microalgae harvesting device based on algal-bacterial symbiosis comprises a reaction barrel (3), a first culture barrel (4), a second culture barrel (5), a mounting seat (1) and a valve (2). The reaction barrel, the first culture barrel and the second culture barrel are mounted on a circular mounting seat in a triangular shape; a valve is arranged on the base between every two barrels, and the valves are respectively connected with the lower parts of the two adjacent barrels through pipelines; a mounting cover (7) is arranged at the upper part of each barrel, a driving assembly (8) is mounted on each mounting cover, and the driving assemblies are connected with the stirrers in the barrels. The device disclosed by the utility model is relatively high in overall integration, the overall occupied space of the device is reduced, an operator can place the device conveniently during use, in the specific operation process, the product conveying time can be shortened, unnecessary loss is avoided, the product is conveyed by adopting an independent pipeline, and the doping problem caused by circulating conveying of the same pipeline can be avoided.

GREENHOUSE GAS PRODUCTION INHIBITOR, COMPOSITION FOR SUPPRESSING GREENHOUSE GAS PRODUCTION, FEED COMPOSITION FOR SUPPRESSING GREENHOUSE GAS PRODUCTION, FOOD COMPOSITION FOR SUPPRESSING GREENHOUSE GAS PRODUCTION, PHARMACEUTICAL COMPOSITION FOR SUPPRESSING GREENHOUSE GAS PRODUCTION, METHOD FOR SUPPRESSING GREENHOUSE GAS PRODUCTION, PROPIONIC ACID PRODUCTION PROMOTER, COMPOSITION FOR PROMOTING PROPIONIC ACID PRODUCTION, FEED COMPOSITION FOR PROMOTIN

Resumen de: WO2025047986A1

This greenhouse gas production inhibitor contains microalgae belonging to the genus Coccomyxa.

A METHOD FOR CULTIVATION OF MIXOTROPHIC MICROALGAE

Resumen de: WO2025048631A1

The present invention relates to the cultivation of mixotrophic microalgae. More particularly, the present invention relates to a method for cultivation of mixotrophic microalgae, comprising the steps of (a) acidifying a feedstock obtained from palm oil industry using hydrolytic microorganisms, acidogenic microorganisms, and acetogenesis microorganisms under a pH environment between 4 to 5.5 in a first area and obtaining a liquid mixture comprising short-chain organic acids and minerals; (b) feeding the liquid mixture into a second area, wherein the second area comprises microalgae and has a pH environment between 5 to 7; and (c) providing circulation in the first area, second area, or a combination thereof, whereby sediments formed at the bottom is displaced in an upward manner in order to be exposed to air and light in proximity to the surface of the respective area. In the first area, the circulation allows acidification of the feedstock to proceed in a non-anaerobic condition. In the second area, the circulation allows the mixotrophic microalgae at the bottom of the second area to be exposed to air and light so as to improve cultivation efficiency while preventing formation of anaerobic pockets in the liquid mixture which favour the growth of undesirable microorganisms, such as methanogenic microorganisms.

ALGAE HARVESTING DEVICE AND METHODS OF USE

Resumen de: US2025075166A1

The present disclosure provides, among other things, devices and methods for harvesting algae (e.g., microalgae) from algae culture growth media to produce a dried algae product and purified water.

Air cleaning device using microalgae that can be installed outdoors.

Resumen de: KR20250030603A

본 발명은 내부에 유동공간이 마련되며, 상기 유동공간으로 공기가 유입될 수 있도록 유입구와 배출구가 형성된 본체와 상기 본체에 설치되어 공기를 상기 유입구로 유입되어 상기 배출구로 배출되도록 강제 송풍시키는 송풍유닛과 상기 유동공간 내에 설치되며, 내부에 미세조류가 생장되는 배양액이 수용되는 저수공간이 마련된 배양수조와, 상기 유동공간으로 유입된 공기 중 이산화탄소를 소비하여 산소가 발생되도록 상기 미세조류가 광합성할 수 있게 상기 배양수조 내에 광을 조사하는 광원부가 마련된 배양유닛 및 상기 유동공간으로 유입된 공기 중 이물질을 걸러낼 수 있도록 상기 배양수조에 수용된 배양액 중 일부를 상기 유동공간을 통과하는 공기와 접촉시킨 다음, 상기 배양수조로 회귀시키는 접촉유닛을 특징으로 한다. 본 발명에 따르면, 건물 밖에 옥외에 설치되어 미세조류를 이용하여 공기 내의 산소 농도를 증가시키거나 먼지를 제거 할 수 있도록 하는 옥외 설치 가능한 미세조류를 이용한 공기정화 장치를 제공하는 것이다.

Microalgae biological synergist as well as preparation method and application thereof

Resumen de: CN119552033A

The invention provides a microalgae biological synergist as well as a preparation method and application thereof, and belongs to the technical field of soil improvement and crop planting. The microalgae biological synergist is prepared from the following raw materials in percentage by weight: 35 to 50 percent of microalgae concentrated solution, 35 to 50 percent of liquid mineral source potassium fulvate and 15 to 30 percent of powdery bacteria, the microalgae are chlorella sorokiniana, and the cell density of the microalgae is (2.5 to 3.5) * 10 < 7 > cells/mL; the powdery bacterium is a composite functional flora composed of bacillus polymyxa, bacillus subtilis, bacillus cereus and bacillus licheniformis, and the effective viable count is greater than or equal to 2.0 billion/g. The biological synergist provided by the invention can effectively improve soil, and can greatly improve the drought resistance, water and fertilizer utilization efficiency, yield, quality and the like of crops.

Sludge treatment equipment based on blending and co-heating of oily sludge and microalgae

Resumen de: CN222556775U

The sludge treatment equipment comprises a pyrolysis outer furnace, a pyrolysis inner furnace is fixedly arranged at the top of the inner wall of the pyrolysis outer furnace, a mixing mechanism used for increasing the flowability of pyrolysis sludge containing greasy dirt is fixedly installed on the pyrolysis inner furnace, a spraying and burning frame is fixedly arranged at the bottom of the pyrolysis inner furnace, and the spraying and burning frame is fixedly connected with the pyrolysis inner furnace. According to the sludge treatment equipment based on blending and co-heating of the oily sludge and the microalgae, the sludge is co-heated by utilizing the microalgae cultured by sewage and the oily sludge, the idea of biological carbon sequestration is utilized, and the sludge treatment efficiency is improved. The tail gas generated by the pyrolysis reaction is introduced into the microalgae bioreactor, CO2 in the tail gas is treated, low-carbon emission is achieved, meanwhile, sludge and sewage are subjected to cooperative treatment, and co-heating of microalgae and oily sludge can effectively reduce reaction activation energy, reduce pyrolysis energy consumption and improve the resource recovery rate.

Marine microalgae composition for preventing and/or improving acute stomach injury, special diet, preparation method and application

Resumen de: CN119547900A

The invention provides a marine microalgae composition for preventing and/or improving acute stomach injury, a special diet, a preparation method and application, and relates to the technical field of traditional Chinese medicines. Comprising 20 to 26 parts of wheat oligopeptide, 15 to 24 parts of microalgae, 5 to 10 parts of dandelion, 4 to 8 parts of Chinese yam, 1 to 5 parts of orange peel, 2 to 4 parts of jujube, 0.5 to 1.5 parts of white hyacinth bean, 1 to 2 parts of hawthorn, 0.5 to 2 parts of poria cocos, 0.4 to 1.2 parts of endothelium corneum gigeriae galli, 0.3 to 0.8 part of malt, 1 to 2 parts of liquorice, 0.2 to 0.6 part of radish seed, 0.5 to 1.5 parts of ginger, 5 to 8 parts of ginseng and 0.4 to 2 parts of raspberry. Microalgae, dandelion, Chinese yam, orange peel, jujube, white hyacinth bean, hawthorn, poria cocos, endothelium corneum gigeriae galli, malt, liquorice, semen raphani, ginger and ginseng are used as auxiliary materials and are matched and interacted with wheat oligopeptide, so that the acute stomach injury is prevented and/or improved. All the components are both food and medicine, and homology of medicine and food is achieved.

Method for controlling dispersive cyanobacterial bloom in local water area of water intake

Resumen de: CN119551757A

The invention discloses a water intake local water area dispersive cyanobacterial bloom control method, which comprises the following steps: 1, arranging a flow guide enclosure and arranging a gas stripping flow making structure, 2, preparing nano titanium dioxide powder and preparing the nano titanium dioxide powder into spraying slurry, 3, coating a sunshade net with the spraying slurry to prepare a photocatalytic sunshade net, and 4, carrying out water intake local water area dispersive cyanobacterial bloom control on the photocatalytic sunshade net. 4, a photocatalytic sunshade net is arranged, and floating plants are planted; the flow guide enclosure is arranged to be matched with the gas stripping flow making structure, surface water in the control area can be conveyed out of the area through the gas stripping flow making structure while blue-green algae in the upper layer in the external area are prevented from entering, the fluidity of surface water in the area is improved, and therefore formation of blue-green algae bloom is avoided; meanwhile, a sunshade net coated with titanium dioxide is arranged in the region, so that blue-green algae and metabolites thereof are oxidized and decomposed by utilizing photocatalysis while the photosynthesis of the algae is reduced by shading, and the water quality is further purified.

Aquaculture feed for fresh-water eel using microalgae of genus Schizochytrium and methods for manufacture thereof

Resumen de: TW202508460A

The present disclosure relates to a feed composition for eels comprising biomass derived from Schizochytrium sp. microalgae, and a method of aquaculture of eels using the same. When the feed composition for eels comprising biomass derived from Schizochytrium sp. microalgae of the present disclosure is fed to eels, the growth of the eels is promoted, and therefore, it may be usefully used as a feed composition or feed additive for eels.

Method for increasing oil content of microalgae by using traditional Chinese medicine residue water extract and application

Resumen de: CN119530012A

The invention discloses a method for increasing the oil content of microalgae by using a traditional Chinese medicine residue water extract and application of the method. The method comprises the following steps: mixing traditional Chinese medicine residues with water according to a specific ratio, boiling, filtering, adding into a microalgae culture medium, and culturing for 5-7 days. The method disclosed by the invention has the advantages that (1) abundant plant active ingredients in the water extract of the traditional Chinese medicine residues are utilized to regulate the metabolic pathway of the microalgae, promote the grease synthesis of the microalgae and remarkably improve the grease content of the microalgae; (2) according to the method, a specific microalgae variety is selected, and a traditional Chinese medicine residue water extract is added in the culture process, so that the optimal accumulation effect of the microalgae grease is realized, and the grease production efficiency and sustainability are ensured; (3) on one hand, the method obviously improves the grease content of microalgae cells, and on the other hand, realizes resource reutilization of the traditional Chinese medicine residues, thereby reducing the waste treatment pressure in the traditional Chinese medicine industry; and (4) the method provides a new idea for development and application of sustainable biological energy sources such as biodiesel.

Algal toxin degrading enzyme, gene, recombinant vector, production strain, preparation method and application thereof

Resumen de: CN119530180A

The invention provides an algal toxin degrading enzyme, a gene, a recombinant vector, a production strain, a preparation method and application thereof, and relates to the field of gene engineering. The algal toxin degrading enzyme provided by the invention can be applied to the pH environmental condition of pH 6.0-pH 12.0, the optimum pH is 10.0, and even under the strong alkali conditions of pH 11.0 and pH 12.0, the enzyme activity can be kept 80% and 70% of the highest activity. The algal toxin degrading enzyme can be used at the temperature of 15-80 DEG C, the optimum reaction temperature is 50 DEG C, and the enzyme activity can be kept 50% of the highest activity even at the high temperature of 70 DEG C. The algal toxin degrading enzyme disclosed by the invention can degrade algal toxin under high-temperature or/and strong-alkalinity environmental conditions, is widely applied to water bodies, such as lakes, rivers, reservoirs, aquaculture water bodies and the like, which have serious cyanobacterial bloom and are polluted by the algal toxin, and meanwhile, the algal toxin degrading enzyme can be used for degrading the algal toxin. The method can also be used in the fields of non-toxic treatment of algae source products polluted by algal toxins and resource application of algae products, and is ecological, safe, green and low-carbon.

Active desert microalgae biological fertilizer and application thereof

Resumen de: CN119530085A

The invention discloses an active desert microalgae biological fertilizer and application thereof, and belongs to the technical field of biological fertilizers. The active desert microalgae biological fertilizer is prepared from the following components in percentage by weight: 10 to 50 percent of cyanobacteria nitrogen fixation, 10 to 30 percent of microcoleus vasinatus, 10 to 50 percent of chlorella pyrenoidosa, 10 to 30 percent of Scenedesmus armatus, 10 to 50 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens, 10 to 30 percent of bacillus amyloliquefaciens and 10 to 30 percent of bacillus The microalgae in the desert microalgae biological fertilizer is in a living body state, can perform a series of life activities such as cell reproduction and metabolism, is vigorous in vitality and high in carbon fixation and nitrogen fixation efficiency, and can remarkably improve the soil fertility, provide nutrition for crop growth, prevent soil hardening and improve the stress resistance of crops.

Application of microalgae-based emulsion gel as mayonnaise substitute and preparation method of microalgae-based emulsion gel

Resumen de: CN119523076A

The invention discloses application of microalgae-based emulsion gel as a mayonnaise substitute and a preparation method of the microalgae-based emulsion gel. The preparation method comprises the following steps: taking microalgae powder as a substrate, mixing the substrate with a mixture (or water) of water, food polysaccharide, table salt, table vinegar and white granulated sugar to prepare algae mud, then adding edible oil, uniformly stirring and mixing with a homogenizer to obtain microalgae-based emulsion gel, and in addition, repeatedly washing and centrifuging the microalgae-based emulsion gel to obtain the microalgae-based high-internal-phase emulsion gel. The prepared emulsion gel is stable in state, has good smearing performance, can be used as a substitute of mayonnaise, is beneficial to high-value utilization of microalgae, and widens the application range of the microalgae-based emulsion gel in the field of food.

Method for improving quality and efficiency of drought alkali wheat by microalgae

Resumen de: CN119522797A

The invention relates to the field of agriculture, in particular to a method for improving the quality and efficiency of Alkaline wheat by microalgae, which comprises the following steps: step S100, screening out a microalgae variety which adapts to the growth environment of Alkaline wheat and has strong salt tolerance and drought tolerance; step S200, culturing the obtained microalgae variety which adapts to the growth environment of the dry alkaline wheat and is high in salt tolerance and drought tolerance, and preparing the cultured microalgae into a liquid microalgae preparation; s300, the microalgae preparation is applied in a soil surface spraying and root irrigation mode; after the microalgae preparation is applied through soil surface spraying and root irrigation, the protein content of the drought alkali wheat is averagely increased by 5%-7%, the nutritional quality is remarkably improved, the soil organic matter content is increased by 27%-35%, and then the microalgae preparation is used for improving the quality and efficiency of the drought alkali wheat.

CELL CULTURE COMPOSITION CONTAINING MICROALGAE EXTRACT AND USE THEREOF

Resumen de: AU2023396599A1

The present invention relates to a cell culture composition containing an extract from microalgae of the Thraustochytrid family. It has been found that when muscle cells are cultured in a medium containing an extract derived from the biomass of microalgae belonging to the Thraustochytrid family according to the present disclosure, the proliferative capacity of muscle cells is enhanced. Therefore, the cell culture composition including the microalgae extract can be used as a substitute for fetal bovine serum among the components of cell culture media.

MODIFIED PROMOTER, EXPRESSION VECTOR, MICROORGANISM, METHOD FOR PRODUCING SUBSTANCE, MODIFIED CYANOBACTERIUM, AND METHOD FOR PREPARING MODIFIED PROMOTER

Nº publicación: US2025066801A1 27/02/2025

Solicitante:

PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd

Resumen de: US2025066801A1

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.