16 results about "Microalgae growth" patented technology

The present application relates to the technical field of microalgae carbon fixation, and specifically discloses a microalgae environmental adaptation carbon fixation method based on spiral disturbance flow field enhancement, which comprises the following steps: constructing a column type photobioreactor and setting a spiral disturbance plate, selecting high-efficiency carbon fixation Chlorella sp. which is resistant to NO X , SO X , pre-treating and inoculating, precisely regulating environmental parameters such as light and pH, monitoring the carbon fixation process in real time and regulating abnormally, and realizing cyclic operation by adopting semi-continuous culture. The present application enhances gas-liquid mass transfer by spiral disturbance, combines dynamic adaptation and regulation of multiple environmental parameters, improves CO₂ emission reduction rate and microalgae growth efficiency, optimizes reactor mass transfer characteristics, reduces energy consumption, realizes the collaborative treatment of multiple pollutants, and provides standardized technical support for the industrialization of microalgae carbon fixation.

This invention discloses a microalgae cell farm control system, control method, and computer-readable storage medium, including a frame; a photovoltaic power supply module, comprising solar panels made of a semi-transparent material, disposed on the outer periphery of the frame as top and side covers, the solar panels being connected to an energy storage unit located within the frame for storing electrical energy; and a photobioreactor unit disposed within the frame, comprising a reactor body for cultivating microalgae. The beneficial effects of this invention are that by setting multiple semi-transparent solar panels on the outer periphery of the frame, placing the reactor body within the frame, and placing a supplementary lighting unit on one side of the reactor body, the supplementary lighting unit utilizes the electrical energy generated by the solar panels to irradiate the reactor body, supplementing the missing spectrum and providing the necessary light conditions for microalgae growth, thereby improving the utilization rate of light energy and increasing the production capacity of microalgae.

The present application belongs to the field of microalgae biotechnology, microalgae culture regulation and high-value lipid bio-manufacturing, and specifically relates to a method for improving microalgae biomass and eicosapentaenoic acid (EPA) yield by regulating amino acids, which takes microalgae capable of synthesizing EPA as a culture object, adds exogenous amino acids or amino acid combinations to the culture system under non-stress culture conditions containing sufficient inorganic nitrogen source, regulates photosynthesis, growth metabolism and lipid synthesis process of the microalgae, and simultaneously improves microalgae biomass and EPA volumetric yield; by adding specific exogenous amino acids or amino acid combinations under the condition of sufficient nutrition culture, the present application realizes synchronous promotion of microalgae growth and EPA accumulation. Different from traditional methods of relying on stress such as nitrogen deficiency to induce lipid accumulation, the present application can improve microalgae biomass, photosynthetic performance, pigment yield and EPA volumetric yield without significantly inhibiting cell growth and photosynthetic activity.

The utility model relates to the field of microalgae cultivation, in particular to a high-precision illumination adjusting device. The high-precision illumination adjusting device comprises lamp beads, the lamp beads have different colors, a lampshade wraps the lamp beads on the first face of a shell, the lampshade is ultrasonically welded to the first face of the shell, a fixing part is fixedly installed on the second face of the shell, and the fixing part is arranged on the second face of the shell. The fixing part is a fixing column with threads, an adjustable buckle structure or a magnetic attraction type adsorption part, the illumination adjusting device further comprises switches and an adjusting knob, each switch controls the multiple lamp beads with the same color, and the adjusting knob controls the brightness of all the lamp beads at the same time. According to the utility model, illumination with proper wavelength and intensity can be provided according to different growth stages of microalgae, and the culture efficiency and quality are improved.

The present application relates to sewage treatment technical field, especially to a kind of organic sewage device of biodegradation and electrocatalytic degradation synergic treatment, including box, reactor is equipped in box, reactor is including two electrode sheets, two electrode sheets are formed with sealed cavity between, cavity is filled with sponge filling material, one electrode sheet outside interval is provided with aluminum plate, aluminum plate is connected power supply anode, electrode sheet close to aluminum plate is connected power supply cathode, electrode sheet away from aluminum plate is connected power supply anode;The present application uses microalgae to absorb inorganic salt in sewage, and carbon dioxide generated by electrode catalytic oxidation can be directly absorbed by microalgae in sealed cavity to promote microalgae growth, oxygen released by microalgae growth can be used by electrolytic catalysis process, can greatly improve the efficiency of electrolytic catalysis, oxygen and carbon dioxide generated in process can promote each other, produce synergistic effect, and oxygen and carbon dioxide can be completely utilized in closed system.

The application provides a mariculture tail water intelligent processing method, and belongs to the technical field of machine learning; by constructing a multi-modal tail water environment-evolution dataset, comprehensive perception of tail water visual image sequences, physicochemical index time series data and operation control parameters is realized, and tail water system dynamic evolution prediction is carried out based on a virtual environment generation model. Through a steady state identification and mode mining module, the application can quantize stable operation clusters, critical boundaries and mutation modes of the tail water system, and extract control-mutation response knowledge, thereby providing structured basis for optimization decision. On this basis, the application constructs a multi-objective control optimization model, realizes efficient regulation and control of microalgae growth rate, suspended particle settling rate and nutrient salt absorption efficiency, simultaneously avoids potential mutation risks, and guarantees stable operation of the system. The method can realize intelligentization, precision and multi-objective optimization of the tail water processing process, and provides efficient and reliable technical support for ecological management of mariculture tail water.

The invention discloses a membrane coupling type microalgae reactor in the field of sewage treatment, and the membrane coupling type microalgae reactor comprises a water supply assembly used for supplying to-be-treated sewage; the first reactor is communicated with the water outlet of the water supply assembly, the first reactor comprises a rotatable biological membrane structure and an aeration structure, and the sewage is primarily treated through a biological membrane; the second reactor is communicated with the first reactor; the ceramic membrane separation unit is communicated with the second reactor and is used for carrying out cross-flow filtration on sewage discharged from the second reactor so as to realize collection of a biological membrane and microalgae and conveying the biological membrane back into the first reactor; the invention further discloses a sewage treatment method. The sewage treatment device has the beneficial effects that microalgae growth and biomass accumulation can be enhanced through two-stage mixed culture of the first reaction cylinder body and the second reaction cylinder body, illumination of the biological modified filler is more uniform, the sewage treatment performance is improved, and the device is lower in energy consumption.

The invention provides a method, a system, a device and a medium for monitoring microalgae concentration, and belongs to the technical field of microalgae concentration monitoring, and the method comprises the following steps: acquiring microalgae pictures of different concentrations as a training set; training a deep learning network model ResNet18 by using the training set to obtain a trained deep learning network model ResNet18 for image classification; the deep learning network model ResNet18 is a deep residual error network ResNet-18 based on a residual error learning method; a microalgae image obtained in real time is input into the trained deep learning network model ResNet-18 used for image classification; the deep learning network model ResNet-18 performs convolution with RGB three-channel parameters of a training set image through a convolution kernel, pools and extracts key features representing color depth of image pixel information, and then outputs the concentration corresponding to the microalgae growth condition based on the key features of the image. According to the method, the microalgae concentration can be accurately predicted in the microalgae growth process.

A system and method for in-situ amelioration of saline-alkali soil using microalgae. Sewage and microalgal seeds are pumped into an microalgae growth pond for growing microalgae, and online equipment is used for monitoring the level of nutrients in the pond. When the microalgae reach the stationary phase of their growth, the screen mesh is lifted to separate microalgae from liquid, so that they are conveniently harvested by scraping. The harvested microalgae are returned to the soil as a soil ameliorant.

The invention relates to a high-fucoxanthine algae cell culture method, which realizes rapid accumulation of fucoxanthine by adjusting the nitrogen-carbon ratio and starvation culture transition in the microalgae growth process and the fucoxanthine accumulation process, and finally obtains microalgae cells with high fucoxanthine content.

The utility model provides a suspension type composite double-layer culture bag for freshwater microalgae culture. A hanging piece is fixedly connected to the top of a composite bag body of the composite double-layer culture bag, a through hole is formed in the hanging piece, a pH value detector inlet pipe is arranged on the side upper portion of the composite bag body, an air inlet connecting pipe is arranged on the side lower portion of the composite bag body, a liquid inlet and outlet pipe is fixedly installed at the bottom of the composite bag body, and external threads are arranged at the end of the liquid inlet and outlet pipe. The liquid inlet and outlet pipe is in threaded connection with the connecting straight pipe through external threads, the electromagnetic valve is installed on the connecting straight pipe, and the other end of the connecting straight pipe is communicated with the main material pipe. According to the culture bag, a plurality of culture bags can be hung on the cross beam at the same time to increase the culture area of fresh water microalgae, mixed gas mixed with carbon dioxide is conveyed into the culture bags to guarantee a carbon source needed by growth of the fresh water microalgae, the pH value of algae liquid in the culture bags is adjusted by adjusting the input amount of the carbon dioxide, and the culture bag is simple and practical in structure and convenient to use. Operation and management are very convenient, slight corrosion can be resisted, and firmness and durability are achieved.

The utility model discloses a circulating type rapid culture device for microalgae in a laboratory, and belongs to the technical field of algae culture. According to the technical scheme, the circulating type laboratory microalgae rapid culture device comprises a culture tank, an aeration unit, a water quality monitoring unit and a controller, the bottom of the culture tank is of an inverted circular truncated cone structure, a top cover is detachably arranged at the top of the culture tank, and a bottom cover is detachably arranged at the bottom of the culture tank; a wave making pump and a heater are arranged in the culture tank; the top cover is provided with a water inlet and an air outlet, the water inlet is connected with a water inlet pipe, and the culture tank is provided with a liquid level sensor; the aeration unit comprises four groups of aeration pipes, the four groups of aeration pipes are communicated with one another through a central pipe and are vertically arranged in the culture tank in a cross shape, a plurality of circular vent holes are uniformly distributed in the outer walls of the four groups of aeration pipes, and an LED lamp tube is arranged in each group of aeration pipes. According to the utility model, the microalgae growth cycle can be shortened, and the microalgae yield is improved.

The application relates to the technical field of algae cultivation, in particular to an intelligent full-closed built-in light-emitting microalgae cultivation device, which comprises a fixing box, cultivation pipes and a light supplementing lamp. The top of the fixing box is in an open shape. Cultivation pipes are arranged at the front end one side corner and the rear end other side corner inside the fixing box. Two groups of the cultivation pipes are diagonally distributed. The light supplementing lamp is arranged at the center of the inside of the fixing box, and a driving motor is fixedly connected to the lamp holder at the bottom of the light supplementing lamp. The cultivation pipes are arranged at the diagonal positions of the light supplementing lamp through a limiting mechanism. The corresponding surfaces of the cultivation pipes and the light supplementing lamp are continuously adjusted, so that the outer surfaces of the cultivation pipes are uniformly and omnidirectionally irradiated, the light irradiation effect of the microalgae in the cultivation pipes is further improved, and the growth of the microalgae is facilitated. The reset mechanism cooperates with the limiting mechanism, so that the operation of the limiting mechanism is further assisted, the cultivation pipes are conveniently taken, and the harvesting efficiency is effectively improved.

The utility model discloses a kind of self-balancing liquid circulation microalgae purification devices, belong to microalgae purification device technical field.A kind of self-balancing liquid circulation microalgae purification device, comprising: purification tank and water pump;Multiple groups of breeding cylinders are fixedly connected in purification tank, heating part is also fixedly connected on purification tank side wall;Exchange hole is opened on breeding cylinder, multiple groups of exchange holes are evenly distributed on breeding cylinder;Water outlet end of water pump is fixedly connected with water supply pipe, water supply pipe is communicated with purification tank;Purification tank is fixedly connected with turbulence tube, the air outlet end of turbulence tube is towards heating part;The utility model is driven by water flow impact impeller disc to drive rotating lever, cam rotation, extrude driving rod to make sliding plug discharge gas in driving cylinder, disturb wastewater by blowing into purification tank through turbulence tube, turn over and mix hot water around heating part with not fully heated wastewater, solve uneven heating problem, let wastewater be heated fully, convenient for microalgae growth and absorption of nitrogen phosphorus compound in wastewater, improve purification effect.

The invention belongs to the technical field of sewage treatment, and particularly discloses an algal growth-promoting bacterium and application thereof in promoting growth of microalgae and cooperatively treating duck farm anaerobic wastewater with the microalgae, the algal growth-promoting bacterium is Citrobacter Portualensis PA1, is preserved in Guangdong Microbial Culture Collection Center on September 16, 2025, and has a preservation number of GDMCC NO: 66969, and the algal growth-promoting bacterium is preserved in the Guangdong Microbial Culture Collection Center on September 16, 2025, and is preserved in the Guangdong Microbial Culture Collection Center on September 16, 2025, and the preservation number is GDMCC NO: 66969. The algae growth-promoting bacterium is applied to promotion of microalgae growth and cooperative treatment of duck farm anaerobic wastewater with microalgae. Compared with the prior art, the combination of the algae growth-promoting bacterium and the microalgae has a better purification effect on anaerobic sewage in a duck farm than single microalgae treatment, and the bacterial strain has a good promotion effect on the growth of the microalgae and can play a better effect in practical application.

The application discloses a light-heat conversion type combined heat and power system and method of microalgae culture photovoltaic greenhouse, relates to the field of microalgae culture, and takes microalgae culture solution as a selective spectrum filtering and light-heat conversion medium, executes a collaborative optimization algorithm based on a dynamic optical model and output prediction according to optical density values and environmental light intensity, and constructs a joint optimization target with total energy efficiency of the light-heat conversion type combined heat and power system and microalgae specific growth rate, so as to on-line solve optimal culture solution circulation flow rate and photovoltaic component inclination. The application realizes selective utilization of the solar light wave band by precisely regulating the microalgae culture solution liquid film thickness and the photovoltaic component inclination, takes into account the microalgae photosynthetic growth and photovoltaic power generation demand, and improves the spectrum utilization efficiency. Through the collaborative optimization algorithm and dynamic weight adjustment, the dynamic balance of the microalgae growth and system capacity is realized, so that the stable growth of the microalgae is ensured and the total energy efficiency of the system is improved.