142 results about "Photobioreactor" patented technology

The invention relates to the technical field of shellfish breeding, in particular to a rapid microalgae breeding method for shellfish breeding based on a photobioreactor and a cement pool. The method comprises the following steps: firstly, optimizing a photobioreactor structure and an illumination layout, controlling a culture environment by matching with a multi-parameter regulation and control system, breeding microalgae seeds with high resistance and high carbon sequestration capacity, culturing to a preset density, and partially harvesting and inoculating into a cement pond, after partial harvest, the photobioreactor realizes continuous culture by supplementing disinfected seawater and nutritive salt; the harvested high-density microalgae are inoculated into a cement pond, nutritive salt is supplemented in a doubled mode, air and carbon dioxide mixed gas is used for continuous aerated culture, and the microalgae are promoted to rapidly reach the index growth period and used for being directly fed to shellfish larvae; according to the rapid microalgae breeding method for shellfish seedling culture, the yield and quality of microalgae are both considered, the success rate and productivity of aquatic seedling culture are effectively improved, the production cost and the labor intensity of workers are reduced, and the method is suitable for large-scale popularization.

The utility model relates to the technical field of biological photoreaction, in particular to a tubular microorganism photoreactor, which comprises a driving mechanism, a turntable, a culture tube and an LED (light-emitting diode) lamp, a limiting groove is arranged on the turntable, a first threaded hole is arranged in the limiting groove, a base is arranged at the lower part of the culture tube, and a limiting block matched with the limiting groove is arranged at the lower part of the base. A second threaded hole matched with the first threaded hole is formed in the limiting block, a screw penetrates through the first threaded hole and the second threaded hole to fix the culture tube on the rotary table, and then the rotary table is driven by the driving mechanism to rotate, so that the culture tube can rotate, and the illumination of the culture tube is uniform.

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.

The invention discloses a concrete wastewater treatment method which comprises the following steps: carrying out precipitation treatment on wastewater to obtain supernate, and enabling the pH value of the supernate to be 7-9 and the concentration of heavy metal ions to be smaller than a threshold value; the supernate enters a photobioreactor, microalgae are cultured in the photobioreactor, and treatment liquid is obtained after culture is carried out for a preset time; the treating fluid is treated by a centrifugal machine to obtain centrifugate, and the centrifugate is filtered to reach the emission standard. The discharged water can be used in the concrete production process, such as stirring water, cleaning water and the like, so that wastewater treatment and reutilization, energy conservation and emission reduction are realized, and the production cost is reduced; meanwhile, water can be returned to the first-stage filtering device, and before the first-stage filtering device, filtering holes of the first-stage filtering device and an ultrafiltration membrane of the first-stage filtering device are flushed regularly, so that blockage is prevented, and the service life of the first-stage filtering device is prolonged.

The invention provides an aluminum electrolysis flue gas treatment and recovery method based on microalgae staged culture, and belongs to the field of biological purification and recycling of industrial flue gas. The method comprises the following steps: pretreating the aluminum electrolysis flue gas to obtain purified flue gas; introducing the purified flue gas into a photobioreactor inoculated with fluorine-resistant microalgae, and carrying out I-stage tolerance period culture to obtain an algae solution; transferring the algae liquid into a photobioreactor, adding CaCl2 into the algae liquid and limiting the supply of a nitrogen source, and introducing purified flue gas into a second photobioreactor to carry out II-stage accumulation period culture, so as to obtain algae slurry; carrying out solid-liquid separation on the algae slurry to obtain algae mud and algae-containing filtrate; the algae mud is subjected to wall breaking treatment and supercritical extraction, and algae oil and algae residues are obtained. According to the application, the pollutant tolerance mechanism and the product synthesis path of the microalgae are triggered by regulating and controlling environmental factors, so that efficient purification of flue gas, fixation of fluorine in the form of biominerals, step-by-step extraction of high-value products from algae and cyclic utilization of algae residues can be synchronously realized.

The application discloses a method for treating cassava starch wastewater by using a microalgae-fungus symbiotic system, and belongs to the technical field of wastewater biological treatment. The method for treating cassava starch wastewater comprises the following steps: pre-culturing oil-rich neochloris oleoabundans to obtain oil-rich neochloris oleoabundans liquid; pre-culturing aspergillus fumigatus to obtain aspergillus fumigatus spores; mixing the oil-rich neochloris oleoabundans liquid, the aspergillus fumigatus spores and filtered and sterilized cassava starch wastewater, and carrying out shaking bed culture to obtain microalgae-fungus biological balls; carrying out sedimentation and sand filtration treatment on the cassava starch wastewater to obtain pretreated cassava starch wastewater; and adding the microalgae-fungus biological balls into the pretreated cassava starch wastewater, carrying out biological treatment in a photobioreactor, and killing algae bacteria to obtain treated cassava starch wastewater. The method has the advantages of good treatment effect, high economic benefit, low cost and low carbon emission, and aims to solve the problems and defects in the prior art.

The utility model discloses a photobioreactor, which relates to the technical field of reactors and comprises a support plate, a reaction container is fixed at the upper end of the support plate, an L-shaped support plate is fixed on the upper end face of the support plate and positioned on one side of the reaction container, one end of a horizontal section of the L-shaped support plate is connected with a connecting ring, and a U-shaped rod is fixed on the upper end face of the connecting ring. An annular lamp strip is fixed to the lower end face of the connecting ring, an electromagnetic valve is installed on the top of the side wall of the air supplementing pipe, and one end of the electromagnetic valve is connected with a connecting hose. According to the device, carbon dioxide is supplemented into the reaction container through the air supplementing pipe, favorable conditions are provided for photosynthesis of algae, the air supplementing pipe and the turning plate can be driven to move up and down through stretching and retracting of the telescopic air cylinder, a nutrient solution is stirred through the turning plate, nutrient substances are evenly distributed, and the utilization rate of the nutrient solution is improved. Therefore, the growth rate and the biomass yield of the microalgae are ensured.

1. The name of the design product: microalgae photobioreactor (flat type). 2. The use of the design product: the product is used for the cultivation of microalgae. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. Other circumstances that need to be explained: the A part marked in the perspective view of the product is transparent glass material.

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 application provides an external embedding type photobioreactor and application thereof, and belongs to the technical field of bioengineering. The external embedding type photobioreactor is used in the process of aerated culture of microalgae, so that the mixing, mass transfer, photosynthetic efficiency and CO2 fixation efficiency of the algal liquid are strengthened, and the biological yield of the microalgae is improved. In the application, the external embedding type photobioreactor comprises a center column, external elbow pipes connected to two sides of the center column, an embedded curved body and an aeration port at the bottom of the center column. The combination of the external elbow pipes and the embedded curved body ensures the general flow of the algal liquid and the circulation of the backflow, and at the same time, the vortex flow of the algal liquid flow is increased as much as possible, so that the mixing efficiency is promoted. The existence of the embedded curved body guarantees the formation of the overall upward flow and downward flow of the algal liquid, and at the same time, the residence time of CO2 in the reactor is increased, and the carbon fixation efficiency is improved.

The invention relates to the technical field of microalgae culture, in particular to a floating microalgae culture photobioreactor system and application thereof.The floating microalgae culture photobioreactor system comprises a grid frame fixedly arranged underwater, and a plurality of liftable culture containers are arranged in grid units of the grid frame; displacement sensors and temperature sensors are installed on the culture containers, lifting mechanisms are arranged at grid units of the grid frame, and each lifting mechanism comprises a servo electric cylinder and a pressing rod connected with the plurality of culture containers through elastic supporting pieces; the central controller receives data of the sensor and controls the servo electric cylinder to dynamically adjust the water immersion depth of the plurality of culture containers according to different time periods of a preset day. The lifting mechanism driven by the servo electric cylinder, the linkage elastic supporting piece and the culture container are arranged in the grid frame, and the height of the container is actively adjusted according to a preset time-depth curve in combination with the central controller, so that the temperature of algae liquid is stably maintained at normal temperature, and the problem of high-temperature death caused by strong light in summer is solved.

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 utility model discloses an efficient internal circulation photobioreactor for sewage treatment. Comprising a reactor shell, a water distributor connected to the reactor shell, a vortex tube connected to the reactor shell, a vortex circulating pump connected to the vortex tube, a built-in lamp tube connected to the reactor shell, an external power supply connected to the built-in lamp tube, and a stirrer connected to the reactor shell, the water outlet pipe is connected to the reactor shell, the water outlet pump is connected to the water outlet pipe, a water inlet and a water outlet are formed in the reactor shell, one end of the water distributor is connected with the water inlet, one end of the water outlet pipe is connected to the water outlet, the water outlet is located above the water inlet, and the vortex tube is in a spiral shape. The vortex tube is arranged in a surrounding mode with the central axis of the built-in lamp tube as the axis, and the stirrer is located over the vortex tube.

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.

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

The present application relates to a kind of seaweed-based carbon quantum dots synergistic plant hormone enhances the method for microalgae carbon fixation, belong to biological carbon fixation technical field.The method with chlorella as carbon fixation carrier, culture in vertical tube type photobioreactor, and add indole-3-acetic acid (IAA) and seaweed-based carbon quantum dots (U-CQDs) in initial stage, optimize culture condition (25~30 ℃, 3000 Lux illumination, 15% CO2 supply).Seaweed-based carbon quantum dots (U-CQDs) are prepared by hydrothermal method with enteromorpha prolifera as raw material, with excellent light conversion characteristics.The present application significantly improves the light energy utilization efficiency of microalgae, CO2 fixation rate and biomass accumulation by the synergistic effect of U-CQDs and IAA, while reducing the energy consumption of culture.The method is simple in operation, low in cost, suitable for efficient capture and resource utilization of industrial flue gas CO2.