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Synthesis method of algae integrated oxygen supply platform based on OLED photoelectric shielding material modification

Resumen de: CN121445865A

The invention relates to the technical field of photodynamic therapy, in particular to a synthesis method of an algae integrated oxygen supply platform based on OLED photoelectric shielding material modification, and the method comprises the following steps: step 1, selecting a photoelectric material based on pentaperylene diimide (PPD), including PPD derivatives modified by PPD-Se, PPD-Te and PPD-Br and containing heavy atoms as a core photosensitizer; step 2, mixing a photoelectric material based on PPD, a PEG derivative containing PPD-Se and a responsive chemical bond, and DSPE-PEG-S-S-NHH through a coprecipitation method, and stirring for 1-6 hours at the temperature of 30-70 DEG C to form PPD type photoelectric material nano-particles with the particle size within the range of 80-120 nm, namely PPD-based NPs; step three, pretreatment and compounding of green algae: chlorella, scenedesmus and chlamydomonas are used as oxygen supply carriers, the surface of the green algae is modified through carboxymethyl chitosan CMCS, and carboxyl groups are introduced; and step 4, combining the modified PPD type photoelectric material nano particles with the microalgae through amido bonds, so as to form the microalgae-photoelectric material composite system Alga (at) PPD-based.

Chlorella and pollution prevention and control oriented livestock and poultry biogas slurry-microalgae-high-protein daphnia magna body step-by-step conversion method

Resumen de: CN121450430A

The invention discloses a method for step-by-step conversion of chlorella and pollution prevention and control-oriented livestock and poultry biogas slurry-microalgae-high-protein daphnia magna bodies, the classification name of the chlorella is Chlorella sp. FACHB-3610, the preservation number of the chlorella is CCTCC NO: M 20252073, and the method for step-by-step conversion of the pollution prevention and control-oriented livestock and poultry biogas slurry-microalgae-high-protein daphnia magna bodies comprises the following steps: (1) pretreatment of the livestock and poultry biogas slurry; (2) detoxification and turbidity reduction; (3) culturing microalgae; and (4) producing high-protein daphnia magna bodies. According to the method disclosed by the invention, a three-stage ecological conversion system of'pollution-resistant microalgae-indigenous flora symbiotic detoxification pretreatment of livestock and poultry biogas slurry, microalgae culture and direct feeding of an algae-water mixed solution to culture daphnia magna 'is constructed, so that ecological sealing and decline prevention and control of pollution factors such as heavy metals, antibiotics and pathogenic microorganisms in the biogas slurry can be realized; polypide body protein can be efficiently produced as a feed alternative resource.

Self-propelled scraping device for collecting microalgae biological membranes

Resumen de: CN223866653U

The utility model relates to the technical field of algae culture devices, in particular to a self-propelled scraping device for collecting microalgae biological membranes, which comprises a moving seat and a track fixed on a support, and a driving component matched with the track and linearly moving on the track is arranged on the moving seat. A plurality of rotatable disc brushes are horizontally arranged at the bottom of the moving seat side by side, and scraping plates in the same direction are arranged on the two sides of each disc brush and fixedly arranged on the moving seat. And the scraping plate is used for pushing and scraping the microalgae biological membrane at the bottom of the culture tray, so that the self-propelled microalgae biological membrane scraping is realized, the manpower is saved, and the working efficiency is improved.

Motor home vehicle-mounted closestool purification system based on microalgae culture

Resumen de: CN223866460U

The utility model discloses a limo vehicle-mounted closestool purification system based on microalgae culture. The limo vehicle-mounted closestool purification system comprises a closestool main body, a circulating water tank, a waste treatment device and a microalgae culture device, the waste treatment device comprises a cabin body, a separation mesh plate is arranged in the cabin body, and a first outlet and a second outlet are formed in the side wall of the cabin body; the first outlet is connected with a fermentation cabin, and a valve is arranged on the first outlet; the second outlet is connected with a bioreactor; the microalgae culture device is provided with a discharge port, the discharge port is connected with the bioreactor through a pipeline, the outlet end of the bioreactor is connected with the circulating water tank through a pipeline, and the pipeline for connecting the bioreactor with the circulating water tank is provided with a delivery pump. According to the vehicle-mounted closestool system, liquid excrement is decomposed in an environment-friendly mode through the natural metabolism capacity of microalgae, harmless treatment of the excrement is achieved, and water in the excrement can be filtered, recycled and reused through connection between the bioreactor and the circulating water tank.

Method for producing biomass energy by treating microalgae with livestock and poultry breeding wastewater

Resumen de: CN121449292A

The invention belongs to the technical field of biological energy, and discloses a method for producing biomass energy by treating microalgae with livestock and poultry breeding wastewater, which comprises the following specific steps: 1) filtering to remove coarse suspended solids and impurities; 2) adding modified biochar into the filtered wastewater, adjusting the pH value to 6-8, stirring and adsorbing, and retaining suspended biochar to obtain a mixed solution of the livestock and poultry breeding wastewater; 3) sterilizing the mixed solution in the step 2), and cooling to room temperature; (4) inoculating microalgae, nitrogen-fixing bacteria and phosphate solubilizing bacteria into the sterilized wastewater, and adding Fe3O4 nanoparticles at the same time; 5, continuous culture is conducted, and the microalgae biomass is harvest. Through the multi-element synergistic effect, the microalgae biomass and lipid content are remarkably improved, the total nitrogen and total phosphorus removal rate is high, integration of wastewater purification, resource recovery and energy production is achieved, and remarkable environmental and economic benefits are achieved.

Method for promoting desert microalgae grease accumulation under high salt stress by using melatonin

Resumen de: CN121450731A

The invention discloses a method for promoting desert microalgae grease accumulation under high salt stress by using melatonin, and belongs to the technical field of biology. The method comprises the following steps: (1) preparation of an inducing algae solution: under a dark condition, carrying out shake culture on a monoraphidium strain Monoraphidium dybowskii by using an improved Endo culture medium, collecting algae cells when the monoraphidium grows to a later logarithmic phase, and re-suspending the algae cells to 0.8-1.0 g/L by using the improved Endo culture medium containing 19-21 g/L of NaCl to serve as the inducing algae solution; and (2) inducing algae cells to accumulate grease, namely adding 90-110 mmol/L of melatonin mother liquor into the inducing algae liquid obtained in the step (1), so that the final concentration of melatonin reaches 10-80 mu mol/L, and carrying out shake culture for at least 2 days under the conditions that the illumination intensity is 20-50 mu mol/(m < 2 >. S) and a cold light lamp continuously illuminates. The method has the advantages of simple process and low cost, trace melatonin and sodium chloride can significantly promote grease accumulation of the monoraphidium, and an efficient and feasible technical approach is provided for microalgae oil production.

System and method for repairing underground water by utilizing microalgae microbial fuel cell

Resumen de: CN121449199A

The invention discloses a system for repairing underground water by utilizing a microalgae microbial fuel cell, the system comprises an anode module, a cathode module and a pumping module, the anode module comprises an anode reactor, a first electrode and a velvet net, the cathode module comprises a cathode reactor and a second electrode, and the pumping module is connected with the first electrode and the second electrode. The pumping module comprises a first peristaltic pump, a second peristaltic pump and a third peristaltic pump, a first electrode is arranged in the anode reactor, the surface of the first electrode is wrapped with a velvet net, a second electrode is arranged in the cathode reactor, and the first electrode and the second electrode are connected through a metal wire. According to the invention, the microalgae microbial fuel cell is directly placed in the to-be-repaired underground water in situ, so that the remediation efficiency of the underground water is improved by utilizing microalgae microorganisms, and meanwhile, the traditional aeration oxygen supply is replaced by microalgae photosynthesis, so that the power generation performance of the microbial fuel cell is improved, and the energy consumption is reduced; and the process cost of the microbial fuel cell is reduced based on the biochemical characteristics of the microalgae.

Intelligent aquatic plant floating ball for emergency treatment of cyanobacterial bloom and treatment method

Resumen de: CN121426312A

The invention relates to the technical field of water treatment, in particular to an intelligent aquatic plant floating ball for emergency treatment of cyanobacterial bloom and a treatment method, the aquatic plant floating ball has two structural forms, including a floating ball A and a floating ball B; the floating ball A adopts a lower hemisphere shell a1 and an upper hemisphere shell a2 which are detachably connected, the outer side of the opening end of the lower hemisphere shell a1 is in threaded connection with the inner side of the opening end of the upper hemisphere shell a2, and the two hemispheres are combined; the lower hemisphere shell a1 is made of a white PVC (Polyvinyl Chloride) material; the bottom of the first hollow PVC pipe is a plastic water-permeable grid integrated with the lower hemispherical shell a1, is used for preventing an adsorption material from falling into water under the action of gravity, serves as a water body to enter an adsorption material channel, and can realize quick response and efficient emergency in combination with the enclosure, so that the emergency treatment response time and the emergency treatment cost are greatly reduced.

Flat plate photobioreactor for culturing microalgae which is not resistant to high temperature

Resumen de: CN121427649A

The invention discloses a flat plate photobioreactor for culturing microalgae which is not resistant to high temperature, which comprises a transparent plastic bag which is unfolded and fixed in a flat plate net rack and is used as the flat plate photobioreactor, and a cooling water pipe and an inflating pipe which are positioned in the flat plate photobioreactor, inflation pipes are attached to the two ends of the cooling water pipe respectively and penetrate through the two connector pipes at the upper end of the plastic bag respectively, sealing and binding of the external water pipe are combined with protection of the waterproof cover as the core, and algae in rainwater and dew can be effectively prevented from being mixed into the reactor to compete with target algae to grow; the problem that a traditional flat plate photobioreactor is easily polluted by foreign algae under outdoor rain and dew conditions is solved.

Method for purifying mariculture tail water by utilizing synergistic effect of microalgae

Resumen de: CN121426309A

The invention relates to a method for purifying mariculture tail water by utilizing the synergistic effect of microalgae, which specifically comprises the following steps: firstly, preparing microalgae, and enabling the microalgae to adapt to the environment through photoautotrophic conversion; secondly, carrying out salinity domestication on microalgae to obtain a microalgae culture solution; then, mixing the domesticated microalgae with mariculture tail water, and carrying out secondary domestication; then, the domesticated microalgae are inoculated into mariculture tail water, and the inoculation density is 1 * 10 < 5 >-10 < 6 > cells/mL; finally, in a culture tank or a reactor, full mixing of the microalgae and the tail water is promoted through stirring or gas stripping equipment, and purification is achieved. According to the method, the microalgae culture solution and the mariculture tail water are mixed, and the microalgae can absorb nutrient salts such as nitrogen and phosphorus in the tail water, so that the eutrophication phenomenon of the water body is effectively reduced. According to the method, harmful substances in the water body are reduced, and the pollution risk caused by tail water discharge to the environment is also reduced.

Non-destructive culture medium replacement device and method for microalgae

Resumen de: CN121427645A

The invention discloses a non-destructive culture medium replacement device and method for microalgae, and relates to the technical field of microbiological treatment. Comprising a frame body, a water storage assembly used for storing pure water and calcium-free seawater is arranged above the frame body, a replacement box is arranged in the middle of the frame body and used for containing a dialysis bag containing algae liquid, and the pure water or the calcium-free seawater can flow in and out at the same flow speed through a pipeline and a flow control valve; a collecting assembly used for receiving water discharged from the replacement box is arranged below the frame body. And two groups of symmetrically arranged transverse frames are fixedly mounted in the middle of the frame body. According to the device, a traditional centrifugal method is replaced by physical isolation and micro-vibration auxiliary replacement of the dialysis bag, a knocking assembly driven by a cam is matched with a spring buffer structure, the movement of liquid in the bag is accelerated, meanwhile, mechanical impact force is controlled within a certain amplitude range, it is ensured that the structure of a microalgae cell membrane is complete, and the survival rate is greatly increased; and a high-activity sample is provided for subsequent calcium signal research.

Preparation method of wasabi seasoning

Resumen de: CN121421156A

The invention relates to the technical field of condiment preparation, and discloses a horseradish condiment preparation method which comprises the steps of multi-strain alternate fermentation pretreatment, directional enzymolysis treatment, microalgae extract synergy and flavor bridging, counter-current extraction and purification, finished product preparation and the like. Through the synergistic effect of multi-strain alternate fermentation and an enzymolysis technology and in combination with a microalgae extract synergism and flavor bridging technology, the obvious reduction of the irritation of the wasabi seasoning and the enrichment of flavor levels are realized. The technical problems that a traditional wasabi seasoning is too strong in irritation, single in flavor and insufficient in functionality are successfully solved, the irritation of the prepared wasabi seasoning is reduced by 70% or above, meanwhile, the specific peppery taste of wasabi is reserved, the wasabi seasoning has enhanced antioxidant and anti-inflammatory characteristics, the palatability and functionality of the product are remarkably improved, and the application range of the product is remarkably widened.

Restoration and treatment method for desertified land in alpine region

Resumen de: CN121420715A

The invention provides a restoration and treatment method for desertification land in an alpine region, and belongs to the technical field of ecological restoration of alpine degraded land. The desertification land restoration method comprises the steps that after an environment-friendly chemical sand fixing agent with the anti-freezing performance is sprayed to the surface layer of the desertification land, dominant cyanobacteria liquid in the alpine region is evenly sprayed to the surface of a mixture of sandy soil and the sand fixing agent, and green, environment-friendly and continuous restoration of the desertification land in the alpine region is achieved. According to the method, a chemical and microbial material combined repair method is adopted, the surface stability of the sandy soil is improved by using an environment-friendly chemical sand fixing agent with anti-freezing performance, the colonization of artificial algae crust is promoted, and the sand fixing method and technology of the desertified land are enriched; through colonization growth time including eight months in complete winter, the thickness of the artificial algal crust, the chlorophyll content and the relative abundance of cyanobacteria phylum are all remarkably improved, the viability of the artificial colonization algal crust is improved, operation and construction are easy, and the later maintenance cost is low.

Device for refitting closed container into high-density cell bioreactor

Resumen de: CN223852610U

The utility model discloses a device for refitting a closed container into a high-density cell bioreactor, and relates to the technical field of water body ecological restoration. The device comprises a permeation part, a filtering part and a fixing part which are detachably connected, the permeation part comprises a semi-permeable membrane fixing disc and a first connecting part which are of an integrated structure, the semi-permeable membrane fixing disc is arranged in a closed container, and the first connecting part is connected with the fixing part and the filtering part outside the closed container through a through hole of the closed container. According to the device for refitting the closed container into the high-density cell bioreactor disclosed by the utility model, the closed container has a high-density cell culture function by arranging the filtering and permeation-permitting additional component in the closed container; the problems that an existing traditional microalgae culture device is poor in adaptability, and the algal bloom treatment technology is high in cost, low in efficiency, high in energy consumption and the like can be solved.

MICROALGAE CULTIVATION PHOTOBIOREACTOR WITH THE ABILITY TO CLASSIFY THE CULTIVATED ALGAE AND REFINE THE FINAL PRODUCT FOR USE IN ANIMAL AND POULTRY FOOD COMPOUNDS AND HUMAN FOOD ADDITIVES

Resumen de: US20260028564A1

The present invention relates to a photobioreactor designed for the cultivation of microalgae, specifically the microalga Chlorella, with applications in animal and poultry feed as well as human food additives. This invention falls within the fields of microbiology, food preparation, human and animal nutrition, and agricultural industry practices. The photobioreactor is engineered to enable cost-effective mass production of microalgae by incorporating systems for injecting micronutrients into the culture medium. Additionally, the invention includes a classification system for sorting the produced microalgae and a refinement process for preparing the classified microalgae as a final product suitable for use in various nutritional compounds.

Method for promoting growth of nostoc by efficiently utilizing nitrogen source through solid-liquid culture

Resumen de: CN121406481A

The invention belongs to the technical field of microalgae biological culture, discloses a method for promoting growth of nostoc by efficiently utilizing a nitrogen source through solid-liquid culture, and aims to solve the problems of low nitrogen source utilization rate and slow biomass accumulation in the conventional culture technology. The method is based on a closed photobioreactor with gas-liquid circulation, and comprises the following steps: preparing a nitrogen-free BG11 culture medium; coating nostoc on the surface of the sterilized porous hydrophilic sponge; placing the sponge in a reactor, and adding the culture medium until no accumulated water is infiltrated; after closing the reactor, controlling the temperature, lighting and other conditions, continuously/intermittently supplementing nitrogen and maintaining certain positive pressure, and circulating the culture medium to supplement nutrition; and taking the sponge after the culture is finished. The utilization rate of a nitrogen source is remarkably increased, the biomass obtained through culture is remarkably increased, culture conditions are stable, and the method is suitable for large-scale development of nostoc and development of high-added-value products.

Aquaculture wastewater treatment system with phycomycete wind screen biofilm

Resumen de: CN223837191U

The utility model relates to a phycomycete wind screen biological membrane aquaculture wastewater treatment system which consists of a purification device, a collection device, a spraying device and a circulating device, wherein the purification device consists of a supporting steel frame, a microalgae biological membrane, a first biological filter bed and a second biological filter bed; the collecting device is composed of a first collecting pool and a second collecting pool; the spraying device is composed of a first spraying piece and a second spraying piece. Through the combined action of the biological filter bed, the microalgae biological membrane, the collecting pool and the like, the aquaculture wastewater treatment effect can be improved, low-cost microalgae cell harvesting can be carried out, and the problems that in a traditional aquaculture wastewater treatment technology, the process is complex, the nitrogen and phosphorus pollutant removal efficiency is low, and microalgae cells are difficult to harvest in wastewater treatment are solved; meanwhile, after absorbing nitrogen and phosphorus, the microalgae are converted into high-added-value biomass rich in protein and the like to serve as aquatic feed and bio-fertilizer, so that the economic benefit is increased, and resource recycling of the aquaculture wastewater is fully realized.

Building sewage purification and energy production system based on microalgae photo-biological reaction

Resumen de: CN121405313A

The invention discloses a building sewage purification and energy production system based on microalgae photobiological reaction, and belongs to the field of urban domestic sewage microalgae treatment and biomass energy collaborative production. A main body of the system is composed of an underground three-stage septic tank, a transfer sewage tank, a spherical microalgae self-mixing photo-biological reaction wall, an algae-water separator and a water storage tank. The septic tank collects sewage and feces discharged by a building, after precipitation and layering, upper-layer sewage flows into the transfer sewage tank and then is pumped into the spherical microalgae self-mixing photobiological reaction wall, pollutant degradation and microalgae biomass accumulation are completed in the photobiological reaction process, algae liquid obtained after reaction is subjected to algae-water separation through the separator, and effluent flows into the water storage tank to be recycled. Part of the separated microalgae biomass flows back to the reaction wall to maintain the efficiency stability of the system, and the other part of the separated microalgae biomass is discharged into the septic tank for co-fermentation capacity. According to the system, the sewage collection unit, the microalgae metabolism unit, the algae-water separation unit, the fermentation productivity unit and the like are integrated, so that in-situ purification and resource utilization of building sewage are rea

Microalgae culture method and application thereof

Resumen de: CN121406450A

The invention provides a microalgae culture method and application thereof, in the microalgae culture method, a nitrogen source comprises industrial ammonium sulfate; the nitrogen source is continuously added into the culture medium at a fixed rate; alkali liquor wrapped by a semipermeable membrane is arranged in the culture medium. According to the method provided by the invention, industrial ammonium sulfate is adopted as a nitrogen source, so that the culture cost is remarkably reduced, and the problems of culture medium acidification and excessive heavy metal caused by one-time feeding of ammonium sulfate are relieved while sufficient nitrogen source is ensured by adopting a specific adding mode; the semi-permeable membrane coated alkali liquor dynamically responds to H < + > release caused by microalgae ammonium sulfate assimilation, so that the process steps are simplified, the process automation level is improved, the yield of microalgae carbon sequestration biomass is improved by 30% compared with sodium nitrate culture, the nutritive salt cost is reduced by 70%, and the quality of algae powder, including protein content, heavy metal components and the like, meets the standard; the operation cost of the microalgae carbon sequestration industry is greatly reduced, and the development of the microalgae carbon sequestration industry is promoted.

Construction method of microalgae-in-situ bacteria strengthening system for degrading naphthenic acid

Resumen de: CN121406482A

The invention is applicable to the technical field of industrial wastewater treatment, and provides a construction method of a microalgae-in-situ bacteria strengthening system for degrading naphthenic acid, which comprises the following steps: separating and identifying two strains of in-situ bacteria from a discharge port of an oil-producing wastewater treatment plant, and constructing a three-strain typical stain-resistant green alga-in-situ bacteria co-culture system. The strengthening system can highly tolerate and efficiently degrade naphthenic acid, can effectively remove nitrogen and phosphorus, and has higher biomass and high-value compound yield. The microalgae-in-situ bacterium strengthening system can reduce pollutant discharge and improve the microalgae resource utilization rate, and the microalgae-in-situ bacterium strengthening system can be used as a biological strengthening degradation technology of naphthenic acid and can be suitable for purification treatment of oil production wastewater and petroleum polluted water areas.

Microalgae harvesting method and equipment based on membrane filtration

Resumen de: CN121406449A

The invention discloses a microalgae harvesting method and equipment based on membrane filtration, and relates to the field of microalgae cultivation. A microalgae harvesting method based on membrane filtration mainly comprises the following steps: step 1, pH value adjustment: adding an alkaline solution into a microalgae culture solution according to the type of microalgae, monitoring in real time by means of a pH sensor, regulating the pH of the microalgae culture solution to 6.5-8.5, maintaining good physiological activity and growth state of most microalgae in the pH range, and after the initial pH adjustment is completed, collecting the microalgae in the microalgae culture solution; removing high-valence ions in the microalgae culture solution by adopting an electrodialysis or cation exchange resin technology; the microalga culture solution is used for accurately adjusting pH, removing high valence ions and enhancing negative charges on the surface of the microalga, and the principle of homopolar repulsion with the ultrafiltration membrane with negative charges is utilized, so that the adsorption and deposition of the microalga on the surface of the membrane are effectively prevented, the membrane pollution degree is greatly reduced, the service life of a membrane assembly is prolonged, the membrane cleaning and replacing frequency is reduced, and the cost is reduced. And the operation cost is reduced.

Microalgae intelligent photo-biological skylight control system suitable for cold region illumination adjustment

Resumen de: CN121406428A

The invention discloses a microalgae intelligent photo-biological skylight control system suitable for cold region illumination adjustment, and belongs to the technical field of building skylights and environment adjustment. The problems that an existing skylight control system cannot achieve intelligent adjustment of indoor illumination and cannot actively absorb carbon dioxide to improve the building energy efficiency and the carbon emission reduction capacity are solved. A culture cavity is formed between an upper group of double-layer light-transmitting glass and a lower group of double-layer light-transmitting glass of a skylight unit, microalgae and a culture solution are contained in the culture cavity, and a lower dimming film is arranged on the lower surface of the lower-layer glass in the lower group of double-layer light-transmitting glass; in the cold region environment, automatic adjustment and optimization of indoor illumination can be preferentially achieved through intelligent regulation and control, carbon dioxide is fixed and biomass energy is produced through photosynthesis of microalgae, and finally the energy efficiency and the carbon emission reduction capacity of a building are improved. The method is mainly applied to intelligent adjustment of indoor illumination.

Carbon source supply device for microalgae culture

Resumen de: CN223837400U

The utility model discloses a carbon source supply device for microalgae culture. The carbon source supply device comprises a high-speed motor, a motor connecting seat, a magnetic coupling motor disc, a shaft end locking nut, an isolation sleeve, a magnetic linkage coupling device disc, a magnetic linkage coupling device disc connecting key, a feeding disc, a rotating disc connecting key, a rotating disc locking nut, a fixed disc, a movable disc, a device barrel, a discharging disc and a rotating shaft, according to the device disclosed by the utility model, carbon dioxide gas and water are simultaneously introduced, gas-liquid mass transfer is enhanced in the device, an atomized state is formed, and then the carbon dioxide gas is introduced into a culture water body, so that the mass transfer effect of the carbon dioxide gas and microalgae in the water body is effectively improved, the escape rate of the carbon dioxide gas is reduced, and the utilization rate of the carbon dioxide gas is up to more than 95%; meanwhile, the air source operation cost of large-scale breeding is greatly reduced, and the air source operation cost is reduced by more than 50% on the basis of an original breeding mode.

Microalgae continuous harvesting system device

Resumen de: CN223837417U

The utility model discloses a continuous microalgae harvesting system device which comprises a disc centrifuge and a shaft type filter device, the disc centrifuge comprises an algae liquid inlet, a nutrient solution primary liquid outlet and an algae slurry outlet; the shaft type filtering device comprises an algae slurry inlet, a shaft type filter, a compressed air forward blowing port, a nutrient solution secondary drainage port, a compressed air reverse blowing port, a bottom collecting port and a bin gate; an algae slurry outlet of the disc centrifuge is connected and communicated with an algae slurry inlet of the shaft type filtering device through a pipeline; the shaft type filter is communicated with an external nutrient solution storage tank through a nutrient solution secondary liquid outlet; the compressed air back-flushing opening is communicated with the shaft type filter through the nutrient solution secondary drainage opening; the compressed air positive blowing opening is communicated with the interior of the shaft type filtering device; and a bottom collecting opening and a bin gate are arranged at the bottom of the shaft type filtering device. The water content of the material finally treated by the system device disclosed by the utility model is very low, and when the material is dried, the consumed energy consumption is low, the waste of water resources is small, and the hardware investment cost is low.

Novel xylitol biological preparation method

Nº publicación: CN121406719A 27/01/2026

Solicitante:

GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACADEMY OF SCIENCES
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Resumen de: CN121406719A

The invention discloses a novel biological preparation method of xylitol. The invention relates to a novel xylitol biological preparation method, which comprises the following step of biologically converting xylose into xylitol in a heterotrophic or polyculture mode of microalgae. According to the biological preparation method of the xylitol, xylose is converted into the xylitol through physiological and biochemical reactions of microalgae, the problems that energy consumption is high, efficiency is low, sustainable development is not facilitated and the like are solved, and meanwhile the harvested chlorella can be used for producing high-added-value products.