78 results about "Photobioreactor" patented technology

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.

This invention provides a distributed microalgae photobioreactor and a method for cultivating microalgae. The reactor includes an environmental control chamber, which is at least partially transparent to light. A rotating support frame is located within the environmental control chamber and is connected to a rotation drive mechanism. The rotating support frame supports multiple independent cultivation containers, which are used to hold culture medium and microalgae respectively. The rotation mechanism drives the rotating support frame to rotate, thereby causing the multiple cultivation containers to rotate. The technical solution of this invention achieves physical isolation through independent cultivation containers, ensuring high aseptic reliability. It also achieves efficient mixing, low energy consumption, high and directionally controllable supplemental lighting, and has a wide range of applications and strong practicality.

This invention relates to the field of wastewater treatment technology, and more particularly to a wastewater treatment device based on an algae-bacteria symbiotic photobioreactor, comprising: a mounting frame and a treatment tank fixed inside the mounting frame. The treatment tank contains a reaction assembly, which includes a drive rod and a reaction spiral blade. The drive rod is vertically positioned inside the treatment tank, and the reaction spiral blade is fitted onto the drive rod. The reaction spiral blade has reaction holes and contains a biological reaction layer. A collection hood, shaped like an inverted frustum, is located at the bottom of the treatment tank. Two symmetrical outlets are located at the bottom of the collection hood. A collection assembly, comprising a sealing ring, a guide ring, a movable rod, and a collection box, is located below the collection hood. The sealing ring is fixedly connected to the bottom side of the collection hood. This invention causes the generated sediment to converge centripetally at the bottom of the treatment tank, avoiding the formation of eddy current dead zones.

This invention related to photobioreactor providing a modular, scalable, and sustainable system for efficient microalgae cultivation, addressing diverse applications such as biomass production, environmental remediation, and bio-compound extraction. This system includes; a body constructed within a standard 20-foot corten steel, an airtight chamber which occupies approximately three-quarters of the body's internal volume for 10 containing the freshwater or saltwater needed for microalgae cultivation, a lightning system (3) including a plurality of LEDs which are programmable and adjustable in both intensity and duration, allowing precise management of lighting conditions to optimize microalgal growth, which is installed on the body ceilin an aeration and mixing system that providing CO2 for photosynthesis from air by a compressor (1) and 15 mixing the biomass within the chamber, a feeding system (4) ensuring a continuous and controlled supply of essential nutrients to the microalgal culture, a photocatalytic filter (2) purifying contaminants in air before being injected into the reactor, a control unit (5) that monitors and manages all key operating parameters of the photobioreactor in real- time, such as pH, temperature, CO₂, and nutrient concentration, photovoltaic panels 20 providing electrical energy for reactor, which is mounted outside of body and a filter (8) that filters contaminants in the water which is sent by a pump.

A general photobioreactor microbial growth rate prediction model and method thereof, the prediction model comprising a pretreatment module, a fluid dynamics calculation module, a light transmission module and a microbial growth rate mechanism module; first, a physical model of the photobioreactor is obtained; second, according to the obtained physical model and the calculation region, mesh division is carried out to construct the pretreatment module; then, the initial value of the growth parameter of the microbial particles in the photobioreactor is calculated; finally, the microbial growth rate in the photobioreactor is calculated and predicted through a coupled model of computational fluid dynamics, light intensity transmission law and microbial growth mechanism; the present application is based on physical modeling, and the computational fluid dynamics, light intensity transmission and microbial growth mechanism are coupled, thereby expanding the generality of the growth rate prediction; and the model can more accurately predict the microbial growth rate in any photobioreactor.

Embodiments may provide photobioreactor system such as a vertical growth enhancing mixing spectrum photobioreactor (1) including but not limited to at least one downcomer tower (22) having spiral impressions (211), an upcomer tower (21), an algae-fluid input (10), an algae downward fluid flow (25) in a downcomer tower; a gas input (18) to drive a system flow (250), a gas upward flow (20) in a upcomer tower; a carbon dioxide gas input (27) having a lower mass flow of carbon dioxide than a mass flow in an upcomer tower, a carbon dioxide gas upward flow (26) in a downcomer tower; a counterflow (230) created with the algae downward fluid flow and carbon dioxide gas upward flow; and perhaps even a collection tank (64) for dewatered algae. Each photobioreactor system may be connected to provide a plurality of photobioreactor systems of which can be automatically controlled.

The application discloses a stable anti-reversibility microbial community structure and a construction method and application thereof, and relates to the technical field of microbial community construction, and in particular to a stable anti-reversibility microbial community structure and a construction method and application thereof.

The utility model discloses a light-dark alternating folded plate type photobioreactor for sewage treatment. Comprising a reactor shell, a water distributor connected to the reactor shell, a stirrer connected to the reactor shell, a plurality of electrode plates connected to the reactor shell, a power supply assembly connected to the electrode plates, a plurality of folded plates connected to the reactor shell, a plurality of shading plates connected to the reactor shell and a controller, the light shielding plates are made of light-proof materials, one light shielding plate is arranged every a plurality of folded plates, a water inlet and a water outlet are formed in the reactor shell, the water inlet is connected with the water distributor, a water outlet pipe is arranged on the water outlet, and the controller is electrically connected with the power supply assembly and the stirrer.

The utility model discloses a light-dark alternating type photobioreactor for sewage treatment. The light-dark alternating type photobioreactor comprises a circulating flow channel, a circulating pump, a circulating pump fixer, a circulating pump controller and a simulated light source or an actual light source, the circulating flow channel is provided with a water inlet pipe, a water outlet pipe and a water distributor, sewage enters the circulating flow channel through the water inlet pipe and the water distributor, and the circulating pump is arranged in the circulating flow channel and drives the sewage and the microalgae to be mixed and circularly react; the circulating flow channel is provided with an opening facing the vertical upper portion, a light reaction area and a dark reaction area, the light reaction area and the dark reaction area are arranged in the flowing direction of the circulating flow channel in a spaced mode, a light shielding plate is arranged at the opening of the dark reaction area, and the simulated light source or the actual light source irradiates into the circulating flow channel from the opening of the light reaction area to form the light-dark alternating effect with the dark reaction area with the light shielding plate.

The invention discloses a haematococcus culture method based on a flexible LED array and a photobioreactor, and relates to the field of bioengineering, and the method comprises the following steps: preparing an SE culture medium according to the growth requirements of haematococcus; pumping the SE culture medium into the sterilized and cooled photobioreactor to a working volume through a sterile pipeline; the photobioreactor is started, sterile air with set flow is introduced, and mild stirring is carried out. According to the invention, the flexible LED array is adopted to surround the transparent reaction inner cavity, so that three-dimensional light distribution is realized, illumination dead angles are eliminated, and the light receiving uniformity of cells is greatly improved; an OD680-target light intensity linear curve is fitted through a pre-experiment, a reactor controller and an LED driving module are combined, light intensity automatic linear adjustment is achieved, light damage is avoided, and the photosynthetic efficiency is greatly improved compared with a traditional rigid LED. The photobioreactor realizes integrated control of illumination and ventilation, reduces manual operation, reduces pollution risk, is stable in product content among batches, and meets the requirements of industrial large-scale production.

The present application relates to a kind of underwater lighting lamp assembly for microalgae culture, further relates to the photobioreactor comprising using the underwater lighting lamp assembly.The underwater lighting lamp assembly of the present application can realize 360 ° light source layout, and also can integrate stirring and aeration device, realize the illumination, stirring and aeration of photobioreactor and other functions.The underwater lighting lamp assembly of the present application can promptly take away the heat generated by lamp, reduce the temperature of lamp tube, reduce the influence of high temperature on light emitting and its service life, also can reduce the heat transfer of lamp tube heat to microalgae culture solution, reduce the temperature rise of microalgae culture system.The hyperboloid stirring paddle and its paddle face gas distribution hole used, mixing is uniform, gas-liquid contact is sufficient, reduce the damage of stirring shear to algal cell, and stirring energy consumption is low.In addition, the underwater lamp assembly of the present application is simple in structure, can be directly applied to large microalgae culture container, form photobioreactor, and easily remove, scale expansion and component replacement.

The application provides an inner light source coupling micro-nano carbon supply reinforced microalgae plastic removal and carbon fixation system and method, which comprises a light reinforcement module, a micro-nano gas oscillation carbon supply module, a photobioreactor main body and an algae plastic collection and resource utilization module; the light reinforcement module, the micro-nano gas oscillation carbon supply module and the algae plastic collection and resource utilization module are connected with the photobioreactor main body respectively; the light reinforcement module adds carbon quantum dots and plant hormone IAA into the photobioreactor main body, and realizes composite illumination in cooperation with illumination; the micro-nano gas oscillation carbon supply module transports micro-nano dispersed CO2 into the photobioreactor main body, and makes the deagglomeration of microplastics in water; the algae plastic collection and resource utilization module collects, processes and realizes resource utilization of the microalgae mixture adsorbing microplastics in the photobioreactor main body. The application aims to realize efficient removal of microplastics, efficient fixation of CO2 and resource utilization of biomass.

A wastewater treatment system includes an aerobic / high purity oxygen membrane bioreactor. The MBR configured to intake influent wastewater and normal air or high purity oxygen and output effluent comprising sludge solids, carbon dioxide and partially treated water. The system includes an ultrafiltration / microfiltration membrane algal photobioreactor (algal-MPBR) in fluid communication with the MBR. The algal-MPBR is configured to intake the carbon dioxide and the partially treated water and output reuse water and an algal biomass. The system includes an anaerobic digester, the anaerobic digester in fluid communication with the MBR and the algal-MPBR. The anaerobic digester configured to intake the sludge solids and the algal biomass and output fertilizer, biogas and indirect potable water.

An internal circulation fluidized bed photobioreactor for sewage treatment comprises an internal circulation area and a fluidized bed area located vertically above the internal circulation area, and a spacer for weakening the flow velocity of fluid is arranged between the internal circulation area and the fluidized bed area. The inner circulation area is provided with a water inlet pipe, an inlet water distributor, an inner circulation pipe, a submersible mixing pump and an algae discharge port, the fluidized bed area is provided with a water outlet, the inner circulation area of the reactor is made of a light-transmitting material, and a plurality of light sources are arranged around the inner circulation area.

The invention relates to the technical field of microalgae culture process control, in particular to a microalgae culture carbon dioxide intelligent feeding system based on multi-parameter linkage. Comprising a photobioreactor, a temperature sensor, a pH sensor, a dissolved oxygen sensor, a conductivity sensor, an optical density or turbidity sensor, a photosynthetically active radiation intensity sensor, a circulating flow sensor, a carbon dioxide and air supply module and an embedded controller. The controller sequentially completes multi-sensor access and calibration, culture operation data acquisition and calculation of growth carbon demand parameters formed by illumination, frond concentration, temperature and the like and aeration safety parameters formed by dissolved oxygen, gas-liquid ratio and circulation flow. The volume fraction of carbon dioxide, the total gas flow and the gas distribution proportion of each aeration branch are optimized by integrating the two types of parameters, and intelligent linkage control over carbon dioxide feeding in the microalgae culture process is achieved.

The application discloses a kind of mine microalgae carbon fixation and emission reduction and resource recycling system, including microalgae culture and closed pipeline photobioreactor microalgae culture module, CO2 capture and transport module, microalgae harvest and processing module and the like eight modules;The prepared culture medium and CO2 captured by air return lane are injected into closed pipeline photobioreactor by transport pipeline, and closed pipeline photobioreactor is provided with multiple sensors, monitoring data is uploaded to intelligent data analysis and optimization module for analysis and processing and is intelligently adjusted to solution injection and environmental parameters by intelligent monitoring and automatic control module;Collect the combustible gas generated by microalgae anaerobic fermentation, process the microalgae of preliminary screening, filter mine wastewater.The application can realize the efficient culture of mine microalgae, the efficient emission reduction and resource utilization of CO2 in mine air return lane, and the recycling of wastewater, meet the green, low-carbon sustainable development concept, provide a new solution for mine carbon dioxide emission reduction technology field.

The present invention relates to a process for producing biofertilizers / biostimulants from microalgae with intensive CO2 capture, which comprises the following steps:a) preparing an inoculum;b) cultivating for the production of microalgae biomass in a window photobioreactor;c) collecting the biomass by flocculation;d) drying the biomass, and grinding and extracting a polar fraction by solvent in a two-phase system; ande) analyzing the polar fraction by liquid chromatography.The invention also relates to the extracts of wet biomass of the microalgae Scenedesmus sp., obtaining the polar fraction. This polar fraction contains amino acids, sugars, betaine derivatives, vitamin B3 (nicotinamide or nicotinic acid) and pantothenic acid (vitamin B5), the monoterpene loliolide and the tryptophan derivative indole-lactic acid (analogous to indole-acetic acid, a phytohormone of the auxin class).The polar fraction can also be used as an input in the cultivation of soybeans, corn, sugar cane, cotton and coffee, among other cultivated species.

A process for capturing greenhouse gas emissions utilizing algae may comprise feeding a carbon dioxide feed stream, a recycle water stream, and light to a closed photobioreactor, thereby forming oxygen and the algae; extracting the oxygen and at least a portion of the algae from the closed photobioreactor, the algae extracted as a wet biomass stream; introducing the wet biomass stream to a dewatering unit along with an exhaust gas stream comprising carbon dioxide, thereby forming steam, a reduced temperature exhaust gas stream, and a dehydrated biomass product; introducing at least a portion of the steam to a cooling unit, thereby condensing the steam and forming the recycle water stream; and introducing the reduced temperature exhaust gas stream to a treatment unit, thereby forming the carbon dioxide feed stream.

This invention relates to the field of aquatic feed additives and aquaculture technology, specifically a method and application for improving the selenium content and meat quality of *Siniperca maculatus* using selenium-enriched algae. The steps include: screening *Chlorella* from naturally selenium-rich water bodies and the intestines of *Siniperca maculatus*; culturing *Chlorella* in BG11 medium containing 4 mg / L Na2SeO3 at 25°C under 1540 μmol / L photon illumination for one week; then scaling up the culture in a photobioreactor for four weeks; centrifuging, washing, and vacuum freeze-drying to obtain selenium-enriched algae powder; adding the powder at 0.1~0.9 mg / kg to the basic feed to make pelleted feed, and feeding it to *Siniperca maculatus* with an initial body weight of 10±2 g. This method can increase the selenium content in fish muscle by 20%~111%, reduce the content of heavy metals such as As, Cd, and Hg, improve growth performance and meat quality, and is safe, easily scalable, and contributes to the green development of aquaculture.

The invention relates to a photobioreactor (1) for the submerged production of sphagnum moss, comprising a container (10) with a reactor interior (RI) comprising at least a portion of the reactor interior (RI). The container (10) has a first compartment (11) and a second compartment (12) arranged above the first compartment (11), wherein the compartments (11, 12, 13) form at least a portion of the reactor interior (RI), are substantially transparent, and have a height (H) to diameter (D) ratio of each compartment of 1 to 2.6. Furthermore, the container (10) has a separating element (14) arranged between the first and the second compartment (11, 12) having a plurality of openings (141) for fluid-conducting connection between the compartments (11, 12, 13) and a closable access opening for adding and removing mineral nutrient medium and peat moss gametophytes into or from at least part of the reactor interior (RI).Furthermore, the container (10) comprises a gas distributor (15) arranged centrally in a lower region (II) of the reactor interior (RI), with a plurality of gas openings for supplying gas into at least a part of the reactor interior (RI) along a gassed sub-region of a photobioreactor cross-sectional area, and a gas outlet (16) arranged in an upper region (I) of the reactor interior (RI) for removing exhaust gas from the container (10). The invention further relates to a method for the submerged production of peat moss, which is carried out using a photobioreactor (1) according to the invention.

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment method based on a microalgae thin-layer fountain photobioreactor, which comprises the following steps: S1, inoculating microalgae cells into the thin-layer fountain photobioreactor, and culturing to a logarithmic phase to obtain a high-activity microalgae seed solution; s2, sewage to be treated is introduced into the thin-layer fountain photobioreactor containing the high-activity microalgae seed solution in the step S1, and the concentration of microalgae cells is maintained at 0.01-5.0 g / L; s3, according to the sewage turbidity and the treatment stage, dynamically adjusting the thickness of a transparent material and a liquid layer of the surface sealing degree (namely the sealing film ratio) of the thin-layer fountain photobioreactor, and supplementing water in real time according to the evaporation condition so as to maintain the stable operation of the system; and S4, cooperatively regulating and controlling parameters such as the flow of a water pump, the pH value of a culture solution and the thickness of a liquid layer of the thin-layer fountain photobioreactor, and continuously operating until the effluent reaches the discharge standard. According to the method disclosed by the invention, gas-liquid mass transfer and light energy utilization of the microalgae culture solution are remarkably enhanced through a thin-layer fountain structure, and the light limiting effect in high-turbidity sewage is effectively overcome; according to the method, the temperature, evaporation and light receiving conditions are cooperatively controlled in combination with dynamic adjustment of the sealing film ratio, the COD removal rate is larger than or equal to 90%, the ammonia nitrogen removal rate is larger than or equal to 95%, the total phosphorus removal rate is larger than 99% under the condition that an exogenous carbon source and complex pretreatment are not needed, and microalgae high-density culture and biomass resource recycling are synchronously completed. The system has the characteristics of low operation cost, easiness in amplification and wide applicability, and provides a technical scheme with industrial potential for efficient and low-carbon treatment of aquaculture sewage and the like.

The invention provides a method for regulating and controlling carbon sequestration of an algal-bacterial symbiotic system by using a digital twinning technology, and relates to the technical field of industrial waste gas and wastewater treatment and carbon emission reduction. A photobioreactor module is constructed, a closed environment with a synergistic effect is provided for algal-bacterial, state parameters are collected through a multi-parameter sensing module, and the state parameters are acquired through a digital twinning module; through the digital twinborn technology and the machine learning model, the state of the state parameters collected in real time and the generated control parameters at the future moment is predicted, then the control parameters enabling the performance indexes to be optimal are determined, a control instruction is generated, and therefore deep perception, dynamic modeling and intelligent decision making of the complex algal-bacterial symbiotic system are achieved. Hysteresis and uncertainty of manual regulation and control are overcome, and the carbon sequestration and denitrification efficiency is remarkably improved compared with that of a traditional method. The system has self-learning and self-optimization capabilities, can adapt to CO2 wastewater and nitrogen-containing wastewater with different sources and different concentrations, and is convenient to quickly deploy and popularize in different industrial scenes due to the modular design.

The invention discloses a photovoltaic and conical tube integrated light-splitting solar concentrator, which comprises a microalgae circular reaction device, a photovoltaic module and a light-splitting concentrator, and is characterized in that the microalgae circular reaction device comprises a photobioreactor which is a transparent part and is used for providing a growth space for microalgae; the photovoltaic module comprises a first photovoltaic panel which is arranged above the photobioreactor, and the light receiving surface of the first photovoltaic panel faces the photobioreactor; the light splitting and concentrating device comprises a light splitting and concentrating part and a light collecting and concentrating part arranged below the light splitting and concentrating part; the light splitting and condensing part is used for reflecting visible light to the first photovoltaic panel and transmitting light outside the visible light to the light collecting and condensing part, and the light collecting and condensing part is used for reflecting light emitted to the surface of the light collecting and condensing part to the photobioreactor. According to the device provided by the invention, energy in sunlight can be fully utilized, the energy utilization rate of solar energy is improved, and the energy consumption of the device provided by the invention is reduced, so that the light-splitting solar concentrator does not need to utilize other energy except light energy, and the carbon emission of the light-splitting solar concentrator is reduced.

The invention belongs to the field of cell engineering seedling culture of algae, and particularly relates to a cell engineering seedling culture method of gracilaria lemaneiformis. The gracilaria lemaneiformis frond is constructed into a miniaturized form, and high-density intensive culture is carried out by utilizing a photobioreactor. According to the method, the microminiaturized asparagus frond obtained by a cell engineering means can be subjected to vegetative propagation, efficient propagation is carried out by utilizing the algae photobioreactor, and the microminiaturized asparagus frond is further cultured into seedlings for artificial cultivation.

1. Name of the product in this design: Photobioreactor (Tree-shaped Microalgae Ecological Landscape 1.0). 2. Purpose of this design: This product is used for the cultivation and breeding of microalgae. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to a method for inducing porphyra yezoensis protonema to efficiently accumulate mycosporine-like amino acids (MAAs) through light regulation and control. Comprising the following steps: (1) placing porphyra yezoensis filaments in a photobioreactor, and treating the porphyra yezoensis filaments for 3-5 hours at the temperature of 15-20 DEG C by adopting a white light source with the illumination intensity of 30-50 [mu] mol / (m < 2 >. S) and assisted by a UVA light source with the illumination intensity of 5-7 W / m < 2 >; (2) after the treatment is finished, collecting a sample, quickly freezing with liquid nitrogen, and then freezing and storing; and (3) extracting the sample by adopting a 25% methanol solution, centrifuging, and taking supernate to obtain an extract rich in MAAs. According to the method, by optimizing the synergistic combination of light quality, light intensity and time, the MAAs biosynthesis pathway of the laver protonema is remarkably activated, the MAAs content reaches 1.19 mg / g or above, and physiology and transcriptomics are utilized to verify that the treatment can induce cell metabolism redistribution, and MAAs is preferentially synthesized.

The invention discloses a photobioreactor featuring a microalgae cultivation chamber in the form of a closed flat duct irradiated by sunlight. The flat duct is constructed from an inflatable sleeve made of transparent polymer film. This inflatable sleeve is sandwiched between a bank of frames with wire nettings, plates of foamed plastic, a variable air pressure mattress located underneath the inflatable sleeve, and a thermo-insulating transparent inflatable mattress and glass panes above. The variable air pressure mattress facilitates mixing of the microalgae suspension with the gaseous medium containing carbon dioxide and regulates the temperature of the microalgae suspension in the flat duct.

The subject of the invention is a light panel containing at least two projections connected to the side edges of the light panel, wherein a light source is attached to at least two projections, and the light panel and projections are made of a substantially transparent material that allows light to be introduced, scattered or distributed. Another subject of the invention is a plate photobioreactor comprising a housing connected to a housing base and at least one light panel according to the present invention. Another subject of the invention is a biomass production system comprising at least two interconnected photobioreactors according to the invention.

The invention relates to a photobioreactor skeleton system (10) designed for supporting algae production structures. The novelty of the invention is characterized by comprising at least one carrier column (11) for supporting, at least two upright members (12) disposed on opposite sides (of the carrier post) (11), at least one hole (13) on these uprights (12) for fixing at least one carrier wire (15), the carrier wire (15) being configured to pass through the holes (13) to allow positioning of algae bags thereon, and at least one support part (14) to keep the uprights (12) rigid relative to each other.