41 results about "Algal growth" patented technology

The present disclosure teaches an algal growth system. The algal growth system includes a flexible sheet material, a liquid reservoir, a mechanism to rotate the flexible sheet material, a resource reclamation device, and an enclosure. The flexible sheet material facilitates growth of a biofilm. The liquid reservoir is configured to retain a contacting liquid in contact with the flexible sheet material and the mechanism rotates the flexible sheet material through the contacting liquid. The resource reclamation device associated with the enclosure is configured to collect and provide a resource for reuse.

The present invention relates to the growth of algae, in particular to processes and systems for preparing and delivering an algal growth medium to one or more algal aquaculture ponds that significantly reduces capital and operating costs relative to known processes and systems, and that provides for a uniform algal growth medium that can be delivered to a plurality of algal aquaculture ponds when a plurality of algal aquaculture ponds is present.

The invention provides a nutrition regulator based on bioactive substances and a preparation method of the nutrition regulator based on the bioactive substances. Comprising the following raw materials in parts by weight: 10-20 parts of zymosan, 15-25 parts of fulvic acid, 20-30 parts of a high-activity carbon source, 5-10 parts of compound biological enzyme, 8-15 parts of algae auxin, 8-12 parts of compound probiotics, 3-8 parts of betaine, 15-25 parts of compound mineral elements and 5-10 parts of compound trace elements. According to the nutrient regulator, the algae auxin is formed by compounding the undaria pinnatifida fermentation product, the pomegranate peel fermentation product and the enteromorpha fermentation product, the undaria pinnatifida fermentation product promotes diatom growth, the enteromorpha fermentation product promotes green algae growth, the pomegranate peel fermentation product can inhibit growth of harmful algae such as blue-green algae, and the nutrient regulator has a synergistic effect on the algae auxin. Therefore, the proportion of beneficial algae such as diatom is increased and maintained for a long time, stable, efficient and high-quality water color beneficial to culture is formed, and the productivity structure of the pond is fundamentally optimized.

The invention discloses a rail self-propelled channel inner wall cleaning device and method, and aims to solve the problems that a device in the prior art is low in manual cleaning efficiency, incomplete in cleaning and insufficient in automation degree. The device comprises a main supporting rod, a left cleaning rod body, a right cleaning rod body, a bottom cleaning rod body, a motor, a battery, a solar panel, a generator, an opening and closing water baffle, a cleaning brush head, a vibration motor and the like. The device drives the moving wheels to move along the channel track through the motor, and the detachable cleaning brush heads on the left and right cleaning rod bodies and the bottom are combined with the vibration motor to achieve comprehensive cleaning of the inner wall. The solar panel and the generator form a dual-energy system to ensure continuous operation of the device; the opening and closing water baffle enhances the fitting degree of the cleaning rod according to the Bernoulli principle, and the cleaning efficiency is improved; the device can automatically recognize the growth condition of algae on the inner wall of the channel or start cleaning operation according to a preset program, achieves intelligent management, effectively removes impurities on the inner wall, guarantees smooth water flow and stable operation of the channel, and has remarkable technical progress and practical value.

The invention discloses a process and device for preparing tap water from lake water, and belongs to the technical field of tap water preparation, the process comprises the steps of S1, collection and pretreatment, S2, a reaction stage, S3, a precipitation stage and S4, filtration and disinfection, a rotational flow aeration device in the reaction stage comprises a lifting mechanism and an aeration mechanism, the lifting mechanism can drive the aeration mechanism to linearly move in the vertical direction, and the folded plate reactor comprises a plurality of baffle plates which are arranged in a staggered manner in the vertical direction and one-way butt joint modules on the lower sides of the baffle plates. According to the invention, the core function of optimizing the reaction path of the baffle plate is reserved, the adverse effect of the baffle plate on aeration is counteracted, the diffusion coverage completeness of gas in the whole reaction tank is greatly improved, a reliable guarantee is provided for comprehensively inhibiting the growth of algae, the problem of long reaction time caused by the influence of the algae originally is solved, and the tap water preparation efficiency is improved.

This application discloses an online monitoring device, method, and medium for chronic toxicity of water bodies, relating to the field of water quality monitoring technology. A first culture tank is connected to a first and a second peristaltic pump, receiving nutrient solution and a reference water sample. A second culture tank is connected to a third and a fourth peristaltic pump, receiving nutrient solution and a test water sample. Both culture tanks contain test algal solutions and have overflow holes near the top. An environmental control component adjusts environmental parameters. Two fluorescence detection probes are respectively inserted into the two culture tanks. A control device controls the flow rate of the peristaltic pumps and acquires the fluorescence signals detected by the fluorescence detection probes. The fourth peristaltic pump continuously pumps the test water sample into the second culture tank, ensuring real-time water sample monitoring. The overflow holes in the culture tanks, and the control device adjusting the flow rate of the peristaltic pumps, allow the net algal growth to approach the overflow carry-out amount, maintaining a stable algal concentration within the culture tanks. Continuous replenishment of the nutrient solution meets the needs of the logarithmic growth phase, prolonging the logarithmic growth phase of the algae, thereby meeting the requirements for chronic toxicity monitoring.

The present disclosure teaches an algal growth system. The algal growth system includes a flexible sheet material, a liquid reservoir, a mechanism to rotate the flexible sheet material, a resource reclamation device, and an enclosure. The flexible sheet material facilitates growth of a biofilm. The liquid reservoir is configured to retain a contacting liquid in contact with the flexible sheet material and the mechanism rotates the flexible sheet material through the contacting liquid.The resource reclamation device associated with the enclosure is configured to collect and provide a resource for reuse.

The invention belongs to the technical field of bioreactors for algae growth, and particularly relates to a bioreactor for intelligently controlling algae growth, the bioreactor comprises a support frame and a columnar reactor, the columnar reactor is mounted on the support frame, a plurality of feed ports communicated with the interior are fixedly mounted at the top of the columnar reactor, and the feed ports are communicated with the interior of the columnar reactor. A controller for controlling the feed port is mounted on the surface of the columnar reactor, a partition plate is fixedly mounted in the columnar reactor, and a discharge port penetrating through the partition plate is formed in the top of the partition plate; by means of the designed structure, large-particle impurities in waste water are smashed when the waste water is discharged, the large-particle impurities which do not reach the standard can be blocked through the filter screen while the waste water discharging efficiency is not affected, the large-particle impurities are prevented from flowing away along with the filter screen, and therefore the situation that after long-time use, the large-particle impurities cannot reach the standard is effectively prevented. The subsequent equipment is blocked by large-particle impurities, and the working efficiency of the columnar reactor is improved while the disassembly and maintenance of the equipment are reduced.

The present invention comprises the deployment of a product known as RubisCO Climate Vaccine® or simply RCV which contains a specialised adapted culture of psychrophile algae and accelerators. This RCV is inoculated into targeted tropospheric clouds. The cumulatively large air-liquid optical interface area of clouds enables conditions for potential exponential photosynthetic algal growth and replication during which carbon dioxide is processed and oxygen released directly in the troposphere. Optimal inoculation sites are determined by altitude, humidity, temperature, weather patterns and predicted direction and duration of travel for precipitation, The biomass produced in this process is intended to be precipitated over mid-ocean where it is sequestered within natural ocean food chains or sedimented as detritus essentially permanently. This nature-based solution through repeated deployments offers a feasible scalable pathway toward potential climate change reversal within a decade with minimal or no adverse environmental impact.

This invention discloses the application of *Pseudomonas orientalis* in simultaneously inhibiting algal growth and promoting carbon dioxide fixation, relating to the fields of environmental microbiology and ecological governance. The invention provides the application of *Pseudomonas orientalis* in simultaneously inhibiting algal growth and promoting carbon dioxide fixation. *Pseudomonas orientalis* exhibits an algal inhibition rate as high as 97.57%, and its carbon dioxide fixation rate is 0.43 g / L·d. This invention also provides a *Pseudomonas orientalis* inoculum and its preparation method. This invention achieves, for the first time, the simultaneous regulation of algal inhibition and carbon fixation, effectively solving the problem of mutual constraint between algal control and carbon fixation processes in traditional technologies.

The present invention relates to the technical field of water treatment, and specifically relates to a treatment system and method for infinitely increasing the cycles of concentration of circulating cooling water. The system comprises an indirect cooling section, a split-flow treatment section and a sludge treatment section; the entire system has no effluent discharge, such that the cycles of concentration of the system are infinitely increased; and finally, partial water is removed by means of sludge discharge from the system, and thus partial salt is carried away, thereby achieving salt balance. A series of measures are taken to solve the problems in a spray water system, such as corrosion, scaling and microbial and algal growth, thereby enabling the stable cyclic operation of the system, realizing water conservation and consuming concentrated brine, and thus resolving the challenge of concentrated brine treatment. The present invention closely aligns with the circular economy, realizes the resource utilization of concentrated brine, and achieves water conservation and pollution reduction, thereby yielding significant economic and social benefits.

This invention provides a method for treating high-salinity wastewater using *Chaetoceros muelleri*, belonging to the field of water treatment: *Chaetoceros muelleri* strains in a preservation state are transferred to a nutritionally complete and suitable standard f / 2 culture medium for activation culture under standard f / 2 conditions; actual marine aquaculture wastewater is used as the treatment target, and after filtering out impurities, the salinity of the wastewater is adjusted to 30-35‰; the *Chaetoceros muelleri* treated in step S1 is inoculated into the high-salinity wastewater at 0.05–0.2 g / L (dry weight), and the lighting system is activated after inoculation; during system operation, the algal biomass and changes in ammonia nitrogen, total nitrogen, and phosphate in the water are monitored regularly; when the pollutant removal rate remains stable at a high level and the algal biomass continues to increase, the system can be considered to be operating stably. This invention efficiently removes nitrogen, phosphorus, and other pollutants from wastewater using *Chaetoceros muelleri* technology, while maintaining stable algal growth, thus improving wastewater treatment efficiency and resource utilization rate.

The utility model relates to the technical field of algae, and discloses an intelligent overwater device capable of inhibiting the growth of algae, which comprises an overwater assembly and an inhibiting assembly arranged on the overwater assembly, the overwater assembly comprises a floating platform, a fixed column is arranged on the floating platform, the lower end of the fixed column is movably connected with a floating plate, and the upper surface of the floating platform is fixedly connected with a buckle A; a buckle B is installed on one side of the buckle A. The restraining assembly comprises a pesticide barrel, a feeding port is formed in the upper surface of the pesticide barrel, a motor is fixedly connected to the upper surface of the pesticide barrel, a transmission shaft is fixedly connected to the output end of the motor, a lantern ring is fixedly connected to the outer surface of the transmission shaft, and stirring blades are movably connected to the outer surface of the lantern ring. By arranging the inhibiting assembly, a motor is controlled to drive a transmission shaft to enable stirring blades to work and drive a scraping plate to work at the same time, so that the inner wall of the pesticide barrel is cleaned while an inhibitor is prevented from precipitating.

The invention discloses an algae biomass prediction method based on state evolution consistency constraint. The method comprises the following steps: preprocessing acquired data; after STL time sequence decomposition is carried out, trend terms are reserved, and algae density trend components are obtained; establishing a physical constraint based on an algae growth kinetic equation to obtain a specific growth rate dynamic equation; constructing a dynamic embedded time sequence prediction model, and introducing a dynamic consistency gating mechanism and a time step prediction correction mechanism; performing model training and evaluation, and obtaining an algae density prediction optimization model after improvement; and outputting an algae biomass predicted value through the optimization model. According to the method, algae growth dynamics and state evolution of a deep learning time sequence prediction model are deeply fused, the defect that only a data-driven model lacks physical consistency is avoided, the extreme value is predicted and corrected through dynamics consistency constraint and time step, the adaptability of the model to a complex hydrological environment is improved, the prediction precision of the model is improved, and the prediction efficiency of the model is improved. And the model interpretability is improved.

The utility model discloses a kind of rural sewage grey membrane processing zero discharge systems, belong to rural sewage treatment technical field, including grey water pipeline collection component, sewage treatment plant and reuse pipeline component;Sewage treatment plant includes grey integration structure, high -efficient biofilm formation structure and biological membrane stable structure;Grey integration structure includes grey shell, and be separated into anoxic zone, aerobic zone and sedimentation zone by grey partition wall in grey shell, each grey partition wall top is provided with flow guide groove;High -efficient biofilm formation structure is set in aerobic zone by biological membrane stable structure;High -efficient biofilm formation structure includes several grey PP fiber fillings of load Fe3O4;Biological membrane stable structure includes grey flexible filler frame, each grey PP fiber filling is fixed on grey flexible filler frame. The utility model solves the problems of low processing efficiency, high cost, unstable biological membrane and algal growth in the prior art, and realizes efficient purification treatment of grey water in rural domestic sewage.

Apparatuses and methods for utilizing different algal growth techniques to filter aquarium water under varying conditions, including freshwater, brackish, and saltwater, and including amounts of nutrients (including ammonia, nitrite, nitrate, phosphate, CO2) which vary from low to high levels. Also disclosed are embodiments to operate above water, submerged, or any combination thereof, in separate or synergistic configurations, as well as embodiments to utilize faster-growing algal species to out-compete and overgrow slower-growing species.

The application discloses a method for inhibiting growth of algae based on ligand binding, and relates to the technical field of biological ligand binding. The method comprises the following steps: adding a ligand solution into water containing algae, and performing light irradiation. The algae comprises cyanobacteria. The cyanobacteria comprises Microcystis aeruginosa. The ligand comprises EDTA, NTA, DTPA and L-methionine. The concentration of the ligand solution is 0.05mmol / L ‑1 .

The sodium chlorite tablet includes sodium chlorite in a matrix material. The sodium chlorite has a concentration between 0.5 wt. % and 20 wt. % of the sodium chlorite tablet. The sodium chlorite tablet further includes a binding agent having a concentration less than or equal to 5.0 wt. % of the sodium chlorite tablet. The sodium chlorite tablet is made by mixing the matrix material with the sodium chlorite to form a first mixture. The binding agent is mixed into the first mixture to form a second mixture. The second mixture is tableted to form the sodium chlorite tablet. Alternatively, the sodium chlorite tablet may be made by diluting colloidal silica sol in water. The sodium chlorite is added to the diluted colloidal silica sol to form a mixture, and the mixture is placed in a tablet mold and allowed to convert the colloidal silica sol into a gel.

Systems and methods for controlling algal growth in a condensate drain line. In one embodiment a temperature value is acquired which is indicative of an ambient temperature about the drain line. One or more volumes of algaecide are calculated for injection one or more times per day into the drain line.

The invention discloses a chaetoceros mulleri growth promoter and a preparation method thereof, and relates to the technical field of growth regulation and control of algae plants. The growth promoter is prepared from the following components in parts by weight: 1 to 5 parts of dicaffeoyl tartaric acid, 3 to 7 parts of eriodictyol and 10 to 20 parts of 2, 3-butanediol, and the total addition amount is 0.6 to 4.5 ppm. The chaetoceros mulleri growth promoter is added into a chaetoceros mulleri culture medium for culturing chaetoceros mulleri. A proper growth promoter is prepared by accurately regulating and controlling the concentration of each component, and then a certain amount of growth promoter is added into a chaetoceros mulleri culture medium, so that the chaetoceros mulleri growth promoter disclosed by the invention is simple in preparation method, the raw materials are easy to obtain, and the growth of chaetoceros mulleri can be obviously promoted.

To provide an iron ion supply structure capable of continuously and stably supplying iron ions necessary for growth of phytoplankton and algae at a fixed position in the sea or a river over a long period of time, a method for producing the same, and an alga reef using the iron ion supply structure.SOLUTION: An iron ion supply structure 1a includes a flat cast iron plate 2a and a plurality of cast iron block 3a projecting from the cast iron plate 2a. The cast iron block 3a includes a carbonaceous material 4 having an exposed part exposed from the surfaces of the cast iron block 3a and an embedded part embedded inside the cast iron block 3a. Further, the iron ion supply structure has a cast iron hook 6a on a back surface of the cast iron plate 2a.SELECTED DRAWING: Figure 1

In producing ethanol suitable for alcoholic beverages or fuels, the separation of stillage involves a complicated treatment system necessary to meet stringent air emissions standards and effluent discharge limits. High water content of stillage creates a difficult process mass flow balance configuration resulting in a large power demand and footprint. The present invention simplifies the production and usage of valuable stillage by-products and reduces net energy consumption and emissions to zero with a novel system and method involving a step sequence of: a solid liquid separation; at least one digester arrangement; a closed gas separation system; algae grow nutrient up-take system; a nutrient separation system; an ultra-filtration water system enabling the off-take by-products to be used by the system and an off-take market for the by-products and its purified water. All produced by-products including carbon dioxide (CO2) and methane (CH4) are used in the system or exported as products.

The invention discloses an algae-based water body comprehensive toxicity detection system, which relates to the technical field of toxicity detection, and comprises an optical imaging module, a multi-parameter sensing module, an AI intelligent counting module, a growth curve analysis module and a parameter regulation and control module, cells and grids are recognized through the AI model, a multi-view averaging algorithm is combined, manual errors are reduced, errors caused by subjective factors and fatigue of a counter are avoided, test repeatability is improved, pesticide toxicity test standards are met, high-frequency automatic detection can be achieved, a continuous growth curve is generated in real time, inhibition inflection points of algae growth are accurately captured, and the accuracy of the pesticide toxicity test is improved. Meanwhile, the time stamps of concentration, temperature and illumination data are completely synchronized and stored in a unified database, the problems that in a traditional test, parameters are recorded dispersedly and are difficult to trace are solved, a unified counting standard and a parameter recording specification are adopted, the method difference of different laboratories and different operators is avoided, the test result has transverse comparability, and the test efficiency is improved. The pesticide environment risk is met.

Systems and methods for controlling algal growth in a condensate drain line. In one embodiment a temperature value is acquired which is indicative of an ambient temperature about the drain line. One or more volumes of algaecide are calculated for injection one or more times per day into the drain line.

The invention discloses a method for improving water quality in aquaculture, and relates to the technical field of aquaculture, and the method comprises the following steps: carrying out dry mixing on a microbial agent and nano calcium carbonate, and then mixing with a sodium alginate solution to prepare slurry; dropwise adding the slurry into an acidic calcium chloride solution for cross-linking and curing to form an embedded microbial agent wet product; mixing the wet product of the embedded microbial inoculum with an algae growth promoter, a composite oxygen supply agent, a heavy metal adsorbent, a photosynthesis promoter, a starch binder and water; extruding, rolling and drying the mixed material to prepare a spherical water quality improving ball; the water quality improving balls are regularly put into the aquaculture water body; wherein the nano calcium carbonate comprises two particles with different particle sizes, and the microbial agent is subjected to superfine grinding treatment, so that the problems of antagonism and processing loss among strains are solved, the combination of a biological method and a chemical method water quality improvement technology is realized, and an efficient, stable and lasting water quality improvement solution is provided for the aquaculture industry.

The present disclosure teaches an algal growth system. The algal growth system includes a flexible sheet material, a liquid reservoir, a mechanism to rotate the flexible sheet material, a resource reclamation device, and an enclosure. The flexible sheet material facilitates growth of a biofilm. The liquid reservoir is configured to retain a contacting liquid in contact with the flexible sheet material and the mechanism rotates the flexible sheet material through the contacting liquid. The resource reclamation device associated with the enclosure is configured to collect and provide a resource for reuse.

A photobioreactor (PBR) cell comprising a riser portion in the form of a tube; a downcomer portion in the form of a tube; a means of joining the riser portion and the downcomer portion to allow liquid flow; and an aeration means.

The present invention relates to the technical field of biological ligand binding, and in particular to a method for degrading copper ion concentration based on the binding of a ligand to Thalassiosira wissenii. The method comprises the following steps: preparing chitosan, L-methionine, D-glucuronic acid, and EDTA stock solutions, and preparing concentrated nitric acid and hydrogen peroxide stock solutions; preparing a copper ion solution, and preparing a Thalassiosira wissenii algal culture solution; filtering the stock solution, and diluting the filtrate to obtain a ligand aqueous solution; taking equal amounts of the Thalassiosira wissenii algal culture solution and the copper ion solution into five groups of containers, sequentially adding chitosan, L-methionine, D-glucuronic acid, and EDTA, and culturing to obtain a culture solution; measuring the fluorescence value of the Thalassiosira wissenii algal body to determine photosynthetic activity; determining the chlorophyll content; digesting the sample and measuring the copper ion concentration; and determining the algal growth, photosynthetic activity, and copper ion contamination based on the measured fluorescence value, chlorophyll content, and copper ion concentration of the Thalassiosira wissenii algal body, and determining the optimal type of ligand to be added.

The application discloses a kind of controllable release silver ion antibacterial porous ceramic materials and preparation method and application thereof, belong to ceramic material field, the antibacterial porous ceramic material is prepared by the mass ratio of 1:4-18:0.3-3 antibacterial agent, ceramic material and binding material;Wherein, the preparation method of antibacterial agent is: aluminum hydroxide is added to soluble silver salt solution, is uniformly obtained mixture, the mixture is heated at 300-350 DEG C 2-3h, obtain the antibacterial agent;Specific component is compounded simultaneously to obtain ceramic material and binding material.The antibacterial porous ceramic material has good pore structure, can effectively regulate antibacterial component silver element from sustained and effective dissolution, and has certain strength, water resistance, can play constant and effective antibacterial, sterilization and inhibit the role of algal growth.