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Microalgae fixing device for incineration flue gas treatment

Resumen de: CN222255939U

The utility model relates to the technical field of flue gas treatment, and discloses a microalgae fixing device for incineration flue gas treatment, which comprises a box body, glass and a wooden frame, the wooden frame is fixedly arranged above the box body, and the glass is fixedly arranged above the wooden frame; the lifting mechanism is fixedly arranged above the inner side surface of the box body; the transmission mechanism is fixedly arranged above the bottom surface in the box body; and power is provided for the lifting mechanism. According to the device, the transmission mechanism is started to drive the gear II to rotate, so that the support frame is driven to rotate, the bolt rotates, the threaded barrel ascends along with the rotation of the bolt, and when the device needs to descend, the transmission mechanism is started to reversely rotate, so that the ascending and descending of microalgae are realized. The device can drive the ascending mechanism to work through the transmission mechanism, so that microalgae ascend and descend, and the situation that the efficiency of photosynthesis is affected due to blocking of solar rays is avoided.

Microalgae culturing and harvesting device

Resumen de: CN222250698U

The utility model relates to the field of microalgae harvesting, and discloses a microalgae culturing and harvesting device which comprises a box body, a collecting assembly is connected to the outer wall of the rear end of the box body in a sliding mode, a discharging bin is fixedly connected to the inner wall of the upper end of the box body, and a carrier is in contact with the inner wall of the upper end of the discharging bin. A belt rotating mechanism is fixedly connected to the inner wall of the left end of the box body, a push block is fixedly connected to the outer wall of the upper end of the belt rotating mechanism, a brush roll is rotatably connected to the inner wall of the upper end of the box body, a telescopic rod is fixedly connected to the outer wall of the upper end of the box body, and a sliding block is fixedly connected to the outer wall of the rear end of the telescopic rod. According to the microalgae separation device, the belt rotating mechanism drives the pushing block to move, the carrier is moved out of the inner wall of the discharging bin, microalgae on the upper surface and the lower surface of the carrier are separated through the two pairs of brush rolls, and then the residual microalgae on the carrier are further separated through bubbling of the bubbling opening, so that the separation effect is good.

Novel microalgae culture pipeline

Resumen de: CN222250726U

The utility model relates to the field of microalgae culture, and discloses a novel microalgae culture pipeline which comprises a culture bin, the front surface of the culture bin penetrates through and is rotationally connected with a bin door, a rotating assembly is arranged on the left surface of the culture bin, a heating plate is arranged on the inner wall of the top end of the culture bin, and an LED lamp tube is arranged on the inner wall of the right side of the culture bin. A sealing assembly is arranged in the culture bin, a quick release assembly is arranged in the culture bin, the rotating assembly comprises a motor, an output shaft of the motor is fixedly connected with a sun gear, the output shaft of the motor penetrates through the left surface of the culture bin, and the output shaft of the motor penetrates through the left surface of the culture bin. According to the microalgae cultivation device, the cultivation pipe can be driven to rotate and revolve by controlling the rotating assembly, so that the illumination time of microalgae in the cultivation pipe is uniform, and when the cultivation pipe rotates, liquid in the cultivation pipe can be stirred, so that the temperature and the oxygen content in the cultivation pipe can be ensured to be uniformly distributed, and the cultivation of the microalgae is facilitated.

Microalgae lamp

Resumen de: CN222256429U

The utility model relates to the field of lamps, in particular to a microalgae lamp which comprises a fixing mechanism, a light source mechanism and a power supply mechanism, the power supply mechanism comprises an electric connecting wire, a supporting assembly and an electric connecting mechanism, the light source mechanism is electrically connected with the electric connecting mechanism through the electric connecting wire, and the supporting assembly is connected with the light source mechanism. The electric connecting wire is arranged on the supporting assembly; the electric connection mechanism comprises a first electric contact assembly and a second electric contact assembly which are installed on the supporting assembly, and a first electric connection piece and a second electric connection piece which are installed on the fixing mechanism. The electric connecting wire is electrically connected with the first electric contact assembly and the second electric contact assembly, the first electric contact assembly abuts against the first electric connecting piece, and the second electric contact assembly abuts against the second electric connecting piece. The light source mechanism drives the supporting assembly so that the first electric contact assembly can move on the first electric connecting piece, and the second electric contact assembly can move on the second electric connecting piece. According to the utility model, winding of the electric connecting wire is avoi

Microalgae cell wall breaking equipment

Resumen de: CN222250736U

The utility model relates to the field of microalgae cell extraction, and discloses microalgae cell wall breaking equipment which comprises a fixed column, a motor A is fixedly connected to the outer side wall of the fixed column, a rotating shaft is rotatably connected to the end, away from the motor A, of the fixed column, and a stirring barrel is fixedly connected to the end, away from the fixed column, of the rotating shaft. A crushing assembly is arranged on the inner wall of the stirring barrel and comprises a motor B, a plurality of groups of cleaning plates are fixedly connected to the bottom end of the outer wall of a rotating shaft, a sliding column is elastically connected to the inner wall of a fixing block through a limiting spring, a scraping plate is fixedly connected to the outer wall of the sliding column, and a discharging assembly is arranged on the outer wall of the stirring barrel. According to the microalgae cell wall breaking device, when microalgae cells are subjected to wall breaking treatment, the microalgae cells adsorbed on the inner side wall and the bottom end of the stirring barrel can be effectively scraped, so that the situation that the wall breaking effect is poor due to the fact that the microalgae cells are adsorbed on the inner wall of the stirring barrel is prevented.

Bacteria-algae sewage treatment method and functional carrier material for bacterial-algae sewage treatment

Resumen de: CN119191572A

The invention discloses a bacteria-algae sewage treatment method and a functional carrier material for bacteria-algae sewage treatment. The bacteria-algae sewage treatment method comprises the following steps: adding the functional carrier material for bacteria-algae sewage treatment into a bacteria-algae system, and treating the sewage under natural illumination and closed non-aeration states by taking the sewage as a reaction solution, the functional carrier material for bacteria-algae sewage treatment comprises a metal organic framework material, carbon quantum dots and a fixed carrier, the metal organic framework material takes iron and zinc as metals and trimesic acid as an organic ligand; the carbon quantum dots are prepared from bacteria and algae biomass recovered from a bacteria and algae sewage treatment system; and the fixed carrier is any one of polyurethane sponge, a nylon net, cotton cloth and polyester fibers. According to the method for treating the sewage by the bacteria-algae system, CO2 enrichment and solar spectrum absorption in water are increased, a favorable environment is provided for microalgae photosynthetic carbon sequestration and carbon-oxygen substance exchange between bacteria and algae, and the organic matter degradation and carbon sequestration efficiency of the whole system is improved.

Microalgae amplification culture device and culture method thereof

Resumen de: CN119193274A

The invention relates to the technical field of microbiology devices, in particular to a microalgae amplification culture device and a culture method.The microalgae amplification culture device comprises a culture box body and a cover plate, a reactor body used for culturing microalgae is fixedly installed in the culture box body, and a cleaning assembly used for cleaning the inner wall of the reactor body is arranged outside the reactor body; an adjusting assembly and a positioning assembly are arranged outside the reactor body, the interior of the reactor body is subjected to water supply cleaning through the cleaning assembly, meanwhile, the adjusting assembly is connected with the cleaning assembly in cooperation with the arranged positioning assembly, the adjusting assembly provides upward or downward power for an annular cleaning brush in the cleaning assembly, and the cleaning effect is improved. An electric driving stirring rod is matched to drive an annular cleaning brush to rotate in the reactor main body, and the annular cleaning brush is in rotating contact with the interior of the reactor main body and reciprocates up and down to thoroughly clean algal microorganisms in the reactor main body, so that the effect of ensuring a microalgae culture environment is achieved.

Self-cleaning microalgae culture equipment

Resumen de: CN222250701U

The utility model relates to the field of microalgae culture, and discloses self-cleaning microalgae culture equipment which comprises a culture cylinder, the top of the culture cylinder is movably connected with a top cover, the middle of the top surface of the top cover is fixedly connected with a motor, the right part of the culture cylinder penetrates through and is fixedly connected with an aeration pipe, the lower part of the motor is provided with a connecting piece, and the connecting piece is fixedly connected with the aeration pipe. A cleaning assembly is arranged in the middle of the connecting piece, a stirring assembly is arranged on the lower portion of the cleaning assembly, an annular groove is formed in the middle of the bottom face of the top cover, operation openings are formed in the front portion and the rear portion of the top face of the annular groove, the connecting piece comprises a connecting shaft, and the connecting shaft is fixedly connected with the output end of a motor. According to the cleaning device, the connection between the cleaning device and the cleaning assembly is more flexible through the mutual matching between the connecting piece and the cleaning assembly, and the brush of the cleaning device is more convenient to disassemble and assemble through the matching among the mounting plate, the fixing piece, the clamping block and the brush, so that the cleaning of the cleaning device is more convenient.

Marine microalgae layering experiment box

Resumen de: CN222250761U

The utility model discloses an ocean microalgae layering experiment box, which belongs to the technical field of biological experiments and comprises an experiment box body, a culture solution adding device is arranged on the side edge of the upper end of the experiment box body, sliding rails are arranged on two sides in the experiment box body, a plurality of pin holes are formed in the surfaces of the sliding rails, and a plurality of adjustable elastic gauze frames are arranged in the middles of the sliding rails. A carbon dioxide conveying pipe is arranged on the side edge of the bottom of the experiment box body, the other end of the carbon dioxide conveying pipe is connected with a spraying row, a filter screen is arranged on the inner bottom surface of the experiment box body, and a drainage pipe is arranged on the side edge of the filter screen. The movable gauze frame is inserted into the sliding rails, the fixing pins are clamped into the pin holes under the elastic force action of the reset springs, the movable gauze frame is rapidly fixed, the elastic gauze is arranged on the magnetic supporting blocks, the elastic gauze is rapidly fixed through magnetic adsorption of the magnetic pressing plates, and different experiment requirements are met.

Novel microalgae concentration device

Resumen de: CN222250700U

The utility model relates to the field of microalgae concentration, and discloses a novel microalgae concentration device which comprises a concentration tank, a top cover is in contact with the upper surface of the concentration tank, a rectangular groove III is formed in the right surface of the top end of the concentration tank, a rectangular groove II is formed in the right end of the upper surface of the top cover, and a dismounting assembly is arranged on the outer wall of the top cover. A fourth rectangular groove is formed in the inner wall of the concentration tank, a filtering assembly is arranged on the inner wall of the concentration tank and comprises a threaded rod, the threaded rod is rotationally connected to the right end of the upper surface of the concentration tank in a penetrating mode, a sliding block is in threaded connection with the outer wall of the threaded rod, and the sliding block is slidably connected to the inner wall of the fourth rectangular groove. According to the concentration tank, tiny particles in water can be filtered through the arranged filtering assembly, the product quality is improved, meanwhile, the filtering tank can be disassembled and assembled at the top of the concentration tank through cooperation of the arranged threaded rod, the arranged sliding block, the arranged limiting block, the arranged second spring, the arranged second arc-shaped groove and the arranged arc-shaped through groove, and the working efficiency is imp

Device and method for graded domestication and culture of microalgae by using high-concentration wastewater

Resumen de: CN119193285A

The invention relates to the technical field of microalgae culture, and discloses a device and method for graded domestication culture of microalgae with high-concentration wastewater, the device comprises a bottom plate, a main frame is mounted on the bottom plate, a material injection mechanism is arranged at the upper part of the main frame, the material injection mechanism is used for injecting materials during domestication culture, the interior of a culture container can be cleaned, and the inner part of the culture container can be cleaned; water spraying cleaning can be conducted on the interior of the culture container during cleaning, rotary water spraying cleaning can be conducted, a cleaning brush is driven by rotation to move on the inner wall of the culture container for cleaning, the cleaning brush makes contact with the inner wall of the culture container all the time, and the cleaning efficiency is guaranteed; according to the device, injected materials and diluent can be mixed and stirred during material injection, so that the materials and the diluent are uniformly mixed and are introduced into a culture container after being uniformly mixed, the uniformity of the concentration is ensured, and the problem that the local concentration is too high is prevented; and quantitative dilution and automatic cleaning of high-concentration wastewater can be realized.

Method for rapidly measuring number of microalgae cells based on seawater salinity

Resumen de: CN119198502A

The invention discloses a method for rapidly measuring the number of microalgae cells based on seawater salinity, and relates to the field of microalgae cell number measurement. According to the method, a function relation curve set is established for different types of microalgae cells corresponding to each growth stage, a corresponding number of microalgae cell densities are selected as a training set, a blood cell counting plate is used for accurate counting, a seawater salinity meter is combined for measuring the salinity value of algae liquid, and the function relation curve set is established after data are integrated. According to the method, the variety difference and growth stage change of microalgae cells are considered, the applicability and universality of the measurement method to different microalgae are enhanced, a function relation curve set is comprehensively analyzed, an optimal function relation curve is selected, the microalgae cell density in a verification set is substituted into a curvilinear equation to calculate a predicted value, the predicted value and a measured value are compared and analyzed, and the accuracy of the microalgae cell density measurement is improved. And the curve with the lowest deviation evaluation index is selected as the optimal function relation curve based on the analysis result, so that the measurement accuracy is improved.

Immobilized microalgae coupling iron-carbon artificial wetland system

Resumen de: CN119191610A

The invention relates to the technical field of wastewater treatment, and particularly discloses an immobilized microalgae coupled iron-carbon artificial wetland system which is characterized in that a microalgae bioreactor is connected with an artificial wetland through a second connecting pipeline, and the artificial wetland is connected with a sedimentation tank through a first connecting pipeline; a traditional constructed wetland is converted into an iron-carbon constructed wetland, the mode of heterotrophic denitrification in the traditional constructed wetland depending on an external carbon source is changed into autotrophic denitrification providing electrons through iron carbon, dependence on the external carbon source is greatly eliminated, and an iron-carbon internal electrolysis technology and a constructed wetland technology are organically combined; the denitrification efficiency of the constructed wetland on the sewage with the low C/N ratio can be obviously improved. The denitrification efficiency of the iron-carbon constructed wetland is improved by 20-30% compared with that of a common constructed wetland, the denitrification efficiency of the system can be further improved by adding microalgae into the system, and the method for treating the aquaculture tail water through the iron-carbon constructed wetland and the method for treating the aquaculture tail water through the microalgae are coupled; and a novel microalgae type iron-carbon constructed wetland

Microalgae powder wall breaking and homogenizing device in microalgae noodle production

Resumen de: CN222250735U

The utility model relates to the field of microalgae processing, and discloses a microalgae powder wall breaking and homogenizing device in microalgae noodle production, which comprises a support, a processing box is fixedly connected to the outer wall of the right side of the support, a stirring mechanism is arranged on the outer wall of the right side of the support, a discharging mechanism is arranged on the outer wall of the top end of the support, and the discharging mechanism comprises a fixing block. A cylinder is fixedly connected to the inner wall of the fixing block, a partition plate is fixedly connected to the movable end of the cylinder, a storage barrel is fixedly connected to the outer wall of the bottom end of the partition plate, a baffle is hinged to the outer wall of the bottom end of the storage barrel, a water tank is fixedly connected to the outer wall of the top end of the fixing block, and an inclined plate is fixedly connected to the outer wall of the right side of the support. According to the automatic quantitative water adding device, water in the material storage barrel can automatically flow into the shell by starting the air cylinder, one-time automatic quantitative water adding operation is completed, an operator does not need to manually add water into the shell, and the working intensity is relieved.

Microalgae culture storage tank

Resumen de: CN222250716U

The utility model relates to the field of microalgae cultivation, and discloses a microalgae cultivation storage tank which comprises a placing table, a cultivation tank is placed at the top end of the placing table, a movable pipe penetrates through the inner wall of the placing table and is in sliding connection with the inner wall of the placing table, a connecting plate is fixedly connected to the right end of the movable pipe, and a fixing block is hinged to the top end of the connecting plate through a hinge rod. A clamping plate is fixedly connected to the top end of the fixing block, a sleeve is fixedly connected to the outer wall of the containing table, a limiting mechanism is arranged on the inner wall of the sleeve, a supporting frame is fixedly connected to the top end of the containing table, a driving mechanism is arranged on the inner wall of the supporting frame, and a supporting plate is in threaded connection with the outer wall of the driving mechanism. According to the culture tank fixing device, the connecting plates and the hinge rods move left and right by moving the moving pipes, the culture tanks can be fixed or unfixed through the clamping plates, the situation that the culture tanks fall down due to collision in the placing process is avoided, and the safety of the culture tanks in the culture process is guaranteed.

Method for screening oil-producing microalgae through combination inhibitor and plasma mutation

Resumen de: CN119193574A

The invention provides a method for screening oil-producing microalgae through combined inhibitor synergistic plasma mutagenesis, which comprises the following steps: step 1, culturing a to-be-mutagenized algae solution to a logarithmic phase to obtain an algae solution culture solution, and sequentially carrying out centrifugation and resuspension treatment on the obtained algae solution culture solution to obtain an algae solution; 2, mutagenizing the algae liquid by using plasma to obtain mutagenized algae colonies; step 3, diluting the obtained mutagenic algal colony to obtain diluted algal liquid; step 4, uniformly coating the diluted algae liquid on a solid culture medium containing an inhibitor, and culturing to obtain a mutant algae strain; step 5, screening the obtained mutant algae strains to obtain high-oil-yield mutant algae strains; compared with the existing screening method, the screening method provided by the invention can reduce the workload caused by index test, save the screening time and more effectively screen out the target algal strain.

Slope protection structure

Resumen de: CN119195167A

The invention discloses a side slope protection structure which is characterized in that the side slope protection structure comprises a flattened side slope, a gabion net cage, a nutrition matrix layer, a degradable cloth-shaped material layer and a microalgae layer are sequentially and upwards arranged on the upper surface of the side slope, and plant seeds are arranged in the nutrition matrix layer. In this way, greening is achieved through microalgae reproduction and growth in the early stage, greening is achieved through plant growth and microalgae in the later stage, the soil fixation and slope protection effects of microalgae and plants are fully facilitated, and the slope protection device has the advantages of being simple in structure and good in slope protection effect.

Ruminant pellet feed of straw immobilized microalgae and application of ruminant pellet feed

Resumen de: CN119184220A

The invention belongs to the field of bioengineering, and particularly relates to a straw immobilized microalgae ruminant pellet feed and application thereof. According to the method, chlorella is fixed on the straw, nutrient substances in the pretreated liquid animal waste are used as nutrient supply, the straw inoculated with microalgae is incubated under illumination and dried to obtain dry particles, and the crude protein content and digestibility of the straw are remarkably improved through the treatment process. The dry particles are combined with molasses, salt, premix and calcium carbonate to prepare pellet feed; the crude protein content of the obtained feed particles can reach 12.63%, the crude fiber content is 25.47%, the calcium content is 0.49%, the phosphorus content is 0.24%, and the calcium-phosphorus ratio is about 2: 1. The feed granules are rich in nutrition and suitable for feeding ruminants such as sheep, dairy cows and buffalo. The invention provides an alternative scheme which is more sustainable, more cost-effective and balanced in nutrition, and has a wide market application prospect.

Microalgae culture device

Resumen de: CN222250699U

The utility model relates to the field of microalgae cultivation, and discloses a microalgae cultivation device which comprises a cultivation barrel, a mounting plate is arranged at the top end of the cultivation barrel, a supporting rod is fixedly connected to the top end of the mounting plate, a fixing rod is fixedly connected to the bottom end of the middle of the supporting rod, and a shading assembly is arranged on the outer wall of the bottom end of the fixing rod. The shading assembly comprises a first shading plate, the inner wall of the first shading plate is rotatably connected to the outer wall of the fixing rod, a second shading plate is rotatably connected to the portion, close to the first shading plate, of the fixing rod, a third shading plate is rotatably connected to the portion, close to the lower side of the second shading plate, of the fixing rod, and a light hole is formed in the top end of the first shading plate. And a plurality of groups of light holes are arranged. According to the utility model, the shading component and the limiting component are matched for use, so that accurate adjustment can be carried out according to specific requirements of microalgae on illumination, and flexible control on illumination conditions can be realized, so that the requirements of the microalgae on illumination in different growth stages are met, and rapid growth of the microalgae is promoted.

Closed reactor for realizing microalgae photochemical reaction

Resumen de: CN222250715U

The closed reactor comprises a reaction box and a supporting part, the supporting part is fixedly installed on the lower side of the reaction box, the reaction box is provided with a liquid inlet and a liquid outlet, the outer walls of the two opposite sides of the reaction box are respectively provided with a light reflecting plate and thermally-induced dimming glass, and the light reflecting plate and the thermally-induced dimming glass are arranged on the outer walls of the two opposite sides of the reaction box. And fluorescent tubes are respectively arranged on two sides of the thermotropic dimming glass. According to the closed reactor for realizing the photochemical reaction of the microalgae, provided by the utility model, when the microalgae are cultivated, mixed liquid of a culture medium and the microalgae enters the reaction box through the feeding hole, and in the photoreaction of the microalgae, the light of the reflecting plate is transmitted to the reflecting plate after penetrating through the mixed liquid of the culture medium, and then is refracted to the culture medium, so that the photochemical reaction of the microalgae is realized. Therefore, microalgae in the culture medium mixed solution can obtain more illumination, and uniform distribution of illumination can be ensured; the light transmittance of the thermotropic dimming glass can be adjusted according to the temperature, so that the temperature of the culture medium mixed solution in the reaction

EXTRACELLULAR VESICLES FROM MICROALGAE, THEIR BIODISTRIBUTION UPON ADMINISTRATION, AND USES

Resumen de: US2024423923A1

Provided are compositions containing extracellular vesicles from microalgae (MEVs) that are loaded with bioactive cargo. The MEVs are formulated and administered by a variety of routes of administration and have a variety of applications as therapeutics, including as vaccines, as anti-cancer therapeutics, as therapeutics for psychiatric diseases, disorders, and conditions, and as diagnostics, and other such uses.

NOVEL STRAIN OF SCHIZOCHYTRIUM SP. WITH EASY INTRACELLULAR OIL EXTRACTION AND A METHOD FOR PRODUCING OIL CONTAINING OMEGA-3 USING SAME

Resumen de: US2024425803A1

The present application relates to a novel Schizochytrium sp. strain easy to extract oil in a cell and a method for producing oil containing omega3 using thereof, and the novel Thraustochytrid series microalgae of the present invention have a high fat content in biomass and have a high content of unsaturated fatty acids such as docosahexaenoic acid and eicosapentaenoic acid among them, and it is very easy to extract biomass produced by itself or by culture and fermentation and fat components including unsaturated fatty acids from biomass. Accordingly, the microalgae, the biomass dried product and bio-oil produced therefrom can be usefully used as a composition for feed or a composition for food, or the like.

MANIPULATION OF ALGAL MICROBIOME COMPOSITION WITH SILICON-RICH MATERIALS FOR ENHANCED PHOSPHORUS REMOVAL FROM WASTEWATER

Resumen de: US2024425399A1

Excess phosphorus (P) in wastewater effluent poses a serious threat to aquatic ecosystems and can spur harmful algal blooms. Revolving algal biofilm (RAB) systems are an emerging technology to recover P from wastewater before discharge into aquatic ecosystems. In RAB systems, a community of microalgae take up and store wastewater P as polyphosphate as they grow in a partially submerged revolving biofilm, which may then be harvested and dried for use as fertilizer in lieu of mined phosphate rock. Disclosed herein are methods for isolating and characterizing microalgae strains from active RAB systems. Strains were identified by microscopy and 16S/18S ribosomal DNA sequencing, cryopreserved, and screened for elevated P content (as polyphosphate). Seven isolated strains possessed at least 50% more polyphosphate by cell dry weight than a microalgae consortium from a RAB system, with the top strain accumulating nearly threefold more polyphosphate. Isolated P-hyperaccumulating microalgae have broad applications in resource recovery from various waste streams, including improving P removal from wastewater.

MICROALGAE BIOFILM REACTOR

Resumen de: EP4480930A1

Die vorliegende Erfindung betrifft eine Vorrichtung zur Aufarbeitung von Abwasser, bei der das Abwasser Kultivierungsflächen durchströmt, wobei die Kultivierungsflächen eine jeweilige Neigung in Bezug auf die Horizontale zwischen 0,5° und 7,5° aufweisen und die Aufarbeitung in einem Gehäuse erfolgt, sowie entsprechende Verfahren zur Abwasseraufbereitung und Verwendungen.

Method for promoting growth of haematococcus pluvialis cells

Nº publicación: CN119177172A 24/12/2024

Solicitante:

SHANXI AGRICULTURAL UNIV
\u5C71\u897F\u519C\u4E1A\u5927\u5B66

Resumen de: CN119177172A

The invention belongs to the technical field of microalgae biology, and particularly relates to a method for promoting growth of haematococcus pluvialis cells. According to the method, branched chain amino acid is added when haematococcus pluvialis cells are induced to proliferate and grow. According to the method provided by the invention, the cell density, dry weight, total lipid and carotenoid content of the haematococcus pluvialis in different growth periods can be improved, and the cell growth efficiency and the astaxanthin production efficiency of the haematococcus pluvialis can be synchronously and comprehensively improved.