35 results about "Algae organisms" patented technology

The invention provides an hpRNA interference vector for laver and application of the hpRNA interference vector, and belongs to the technical field of genetic engineering and algae biology. According to the hpRNA interference vector, a binary vector pBI121 is used as a skeleton vector, a laver endogenous Actin promoter and a multiple cloning site segment are inserted, the multiple cloning sites allow target gene segments to be cloned in a forward and reverse repetition mode, the target gene segments are spaced by introns, and therefore an efficient hpRNA structure is formed after transcription, and the efficient hpRNA interference vector is obtained. The gene can be directly used for silencing important genes related to growth and development, metabolic regulation, stress response and the like in the laver. The invention further provides a construction method of the hpRNA interference vector and application of the hpRNA interference vector in silencing laver genes and provides a method for silencing laver gene expression, the gene silencing effect is remarkable, experimental results can be repeated, and a powerful tool is provided for molecular breeding and genetic improvement of laver.

Solid lipid nanoparticles (SLNs) for delivery of bioactive compounds are disclosed. The SLNs comprise a lipid matrix and surfactant layer encapsulating at least one bioactive compound selected from vitamins, minerals, enzymes, algae-derived bioactives, proteins, peptides, amino acids, antioxidants, small synthetic molecules, plant-derived volatile compounds, or botanical extracts. The SLNs exhibit submicron particle size, low polydispersity, and sufficient surface charge to ensure colloidal stability and efficient delivery. In one embodiment, algae-based bioactives, such as phycocyanin or fucoxanthin, are encapsulated using only natural and sustainable lipids and surfactants to improve bioavailability and support environmentally friendly formulations. The SLNs may be formulated for oral, topical, transdermal, injectable, ophthalmic, mucosal, textile, veterinary, or agricultural administration. Applications include human and animal health, functional foods, skincare, nutrient supplementation, and crop treatment. The disclosed SLNs offer a biocompatible and scalable delivery system that protects sensitive compounds, enables sustained release, and enhances absorption across diverse industries.

The present disclosure relates to methods and systems for extending metabolism of algal biomass or enzyme extracts, including the production and extraction of algal secondary metabolites with pharmaceutical, industrial, and agricultural uses. Aspects of this disclosure relate to production of antimethanogenic compounds from algae and other organisms. The disclosure further relates to compositions comprising antimethanogenic compounds and methods of using the same to reduce enteric methane emissions from ruminate animals. Methods of culturing algae in solutions with oil layers and triggering release of secondary metabolites through stress are also described.

The invention discloses a hardened channel algae biofilm removing system based on high-pressure jet flow and an intelligent control method. The system comprises an unmanned catamaran, a high-pressure jet generating device, an intelligent sensing module and an embedded central controller module. The unmanned catamaran is a system carrier, the high-pressure jet flow generating device achieves targeted removal of the algae biological membrane through self-adaptive jet flow, and the intelligent sensing module comprises a multispectral imager for recognizing the distribution characteristics of the biological membrane in real time and a laser distance measuring sensor for obtaining the distance between the removal system and the algae biological membrane. The embedded central controller module is a fuzzy PID algorithm for dynamically adjusting jet parameters and the motion trail of the mechanical arm and an artificial intelligence algorithm for optimizing the operation cycle based on historical data. The system adopts a full-automatic intelligent working mode, and integrates technologies of intelligent sensing, a self-adaptive cleaning mode, a water-saving algorithm, automatic nest-returning charging and the like. The system is easy and convenient to operate and low in running cost, the clearing efficiency reaches 92% or above, water is saved by 30% or above, and the system is an efficient and applicable technology for guaranteeing stable water quality and safe water delivery of the long-distance water delivery trunk canal.

The invention relates to a floating algae detection method, system and device. The method comprises the following steps: preprocessing a multi-vision original image sequence to obtain a multi-vision preprocessed image sequence; performing image splicing on the multi-vision preprocessed image sequence according to the boundary features to obtain a panoramic image; carrying out step-by-step edge identification and labeling on the panoramic image by adopting a multi-operator and region growing method to obtain a labeled image; and performing type identification and counting on the floating algae in the labeled image based on a stacked integrated learning method to obtain floating algae biological information. According to the method, image splicing is performed firstly, then edge recognition is performed, and multi-operator step-by-step edge recognition from low precision to high precision is performed on the panoramic image, so that the detection efficiency can be improved; in addition, the types of the floating algae in the annotated image are identified and counted based on the stacked integrated learning method, and the identification accuracy is higher than that of an existing single model.

To provide a biomass material for treating an effluent gas which can treat harmful substances still remaining in treated gas processed by a conventional effluent gas treatment apparatus.SOLUTION: A biomass material for treating an effluent gas contains algae biomass in an amount from 40 wt.% to 90 wt.%, and zeolite in an amount from 10 wt.% to 60 wt.%, where the contents are based on the total weight of the biomass material. The biomass material 320 molded into porous pellets is packed into a housing 310 and brought into contact with an effluent gas stream for treating the effluent gas.SELECTED DRAWING: Figure 4

According to the technical scheme, the algae organism removing device for the filter tank is characterized by comprising a filter plate, the filter plate is arranged in the filter tank, the filter plate is vertically arranged and is perpendicular to the length direction of the filter tank, the two sides of the filter plate are attached to the two inner walls of the two sides of the filter tank respectively, and the filter plate is arranged in the filter tank. The bottom of the filter plate is attached to the bottom of the filter tank; the filter pipe is fixedly connected outside the filter tank and located at the bottom of one end of the filter tank, and the filter pipe is communicated with the filter tank; the filter screen is fixedly connected to one end, far away from the filter tank, in the filter pipe; a side plate; and a base plate; the filter plate can slide along the length direction of the filter tank and can vertically slide; large-size algae organisms in the filter tank are filtered out through the filter plate, so that the filter pressure of the filter screen is reduced, and the replacement frequency of the filter screen is further reduced.

The utility model relates to the technical field of algae removal devices for aquaculture water, in particular to a biological treatment device for removing algae in aquaculture water, which comprises a blow-off pipe arranged on an algae removal device main body, the blow-off pipe is connected with a drain pipe through a connecting pipe, and a filter plate is mounted in the drain pipe; the device has the beneficial effects that the ozone generator and the ultraviolet unit carry out algae removal work on the water body, so that algae in the water body are inactivated and sink to the bottom, the upper control valve is opened, and the filter plate can filter algae residues floating in the water body in the process that the water body is discharged through the drainage pipe; the blocked residues move downwards into the blow-off pipe along the connecting pipe under the action of gravity, the upper control valve is closed, the lower control valve is opened, water in the algae removal device body is discharged through the blow-off pipe, water flow drives the residues at the bottom of the algae removal device body, and the residues in the connecting pipe and the blow-off pipe are discharged through the blow-off pipe. Algae residues in the water body are effectively prevented from being discharged into the aquaculture water body through the drainage pipe to influence the water quality.

The present invention discloses a method for high-density cultivation of freshwater shrimp without aquatic plants, which includes four steps: preparing materials, treating the materials, building a cultivation pond, and stocking and managing the freshwater shrimp. By arranging shaping blocks and mesh bags with calcification and loaded biofilms in the cultivation pond, the shaping blocks and mesh bags can provide an environment for the growth, molting and hiding of the freshwater shrimp. The algal biofilm can not only be fed on by the freshwater shrimp, but also purify the water quality. After 3 months of cultivation, the average individual weight of the freshwater shrimp reaches about 3.0 grams, the survival rate can reach over 90%, and the shrimp yield per square meter can reach 810 grams, significantly improving the yield of the freshwater shrimp. By setting the cultivation pond into a structure containing a platform and a nest bottom, the shaping blocks can be stacked on the platform. During normal cultivation, the freshwater shrimp live near the shaping blocks. When fishing for the freshwater shrimp, the freshwater shrimp will gradually move towards the nest bottom as the water level drops, which can reduce the death and retention of the freshwater shrimp and contribute to improving the yield of the freshwater shrimp.

A method and a culture medium for culturing and growing algae utilizing a flue gas and wastewater from a urea plant and / or an ammonia plant are disclosed. In some instances, cultured algae is combined with one or more solid fertilizers to produce bio-fertilizers.

The present invention relates to a method for preparing an algae extract from an algae biomass comprising chlorophyll, polar lipids and possibly present triglycerides, said algae extract comprising polar lipids dissolved in 1, 3-propanediol and whose parameter a according to the CIELAB color space is greater than or equal to-5, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably greater than-10, preferably to the use of said algae extract as a cosmetic active agent, and to a cosmetic composition comprising said algae extract.

The invention discloses an organic compound fertilizer suitable for wheat and corn as well as a preparation method and application of the organic compound fertilizer. The organic compound fertilizer is prepared from the following raw materials in parts by weight: 40-60 parts of livestock and poultry manure, 20-30 parts of decomposed straw powder, 10-15 parts of edible fungus residues, 5-8 parts of algae biochar and 0.1-0.3 part of a complex microbial inoculant. The complex microbial inoculant comprises nitrogen-fixing bacteria, phosphate solubilizing bacteria and bacillus subtilis. The compound fertilizer is compounded with the functional microbial inoculum through synergistic fermentation of organic wastes, so that the content of organic matters in soil and the nutrient utilization rate are remarkably increased, and the compound fertilizer has the effects of improving the soil structure and inhibiting soil-borne diseases, and is particularly suitable for dry-farming grain continuous cropping areas.

The invention discloses an efficient adsorbent for refractory organic matters in wastewater and a preparation method. The efficient adsorbent is prepared from the following raw material components: biomass, magnesium silicate clay minerals and MOFs (Metal-Organic Frameworks) in a mass ratio of 1: 1: (0.5-2), the MOFs in the raw materials have a high specific surface area and an adjustable pore structure, so that the adsorbent has excellent adsorption performance, the magnesium silicate clay mineral in the raw materials provides abundant electrostatic adsorption capacity, and the algae biomass in the raw materials can provide additional adsorption sites; functional groups on the surface of the algae biomass and a specific pore structure of MOFs can enable the composite material to have selective adsorption capacity on some refractory organics, the mass transfer capacity of the refractory organics on the surface of the composite material is enhanced through the outstanding surface point carrying performance of the magnesium silicate clay mineral, and the adsorption effect is good; meanwhile, the composite material has the advantages of sustainability and environmental protection.

An algal biofilm harvesting method capable of reducing release of planktonic microalgae includes the following steps: S1: constructing an algal biofilm treatment system; S2: calculating a cutting area; S3: harvesting microalgae biomass; and S4: cyclic harvesting. By constructing an algal biofilm treatment system, a surface of an algal biofilm can be regularly cut to harvest microalgae biomass, thereby keeping activity of the biofilm in a best state all the time. In addition, the harvested microalgae biomass can be used as a high-quality substrate for subsequent fermentation, which can achieve resource saving. Quality attainment of effluent from a sewage tank with planktonic microalgae as a suspended solid indicator can be achieved, the treated effluent can be prevented from deteriorating due to an increase of the planktonic microalgae, and a risk that the planktonic microalgae in the effluent of the algal biofilm affects a subsequent treatment process is reduced.

The invention discloses a durable HDPE composite material for an S-shaped filter brick and a preparation method of the durable HDPE composite material, and relates to the technical field of HDPE composites.High-density polyethylene is used for preparing the HDPE composite material, then polyethylene grafted maleic anhydride is added for modification, and the strength of the HDPE composite material is enhanced. And a modified titanium dioxide-microsphere compound is also added, so that the strength of the HDPE composite material is enhanced, and meanwhile, the HDPE composite material is endowed with aging resistance and antibacterial property. The invention provides a preparation method of polystyrene-silicon dioxide microspheres with a large specific surface area, then the polystyrene-silicon dioxide microspheres are modified by using silver nitrate, and nano-silver is loaded on the composite microspheres, so that the antibacterial property of the microspheres is improved. The invention also discloses an antifouling coating which is sprayed on the surface of the HDPE composite material, so that the problem that the durability is reduced due to attachment of algae organisms after the filter brick is used for a long time can be relieved.

Bio-textile material from filamentous algae. The invention provides a non-woven bio-textile composed of a single or multiple layers, including surface and structural layers, incorporating pre-treated algae, seaweed, natural fillers, and other additives wherein a specific weight ratio of algae and / or seaweed to natural fillers is maintained to achieve different level of thickness in the prepared bio-textile. The prepared bio-textile has good tensile and tearing strength in the range of 100-200 N / mm and 50-80 N / mm, respectively such that it can be used to produce different types of apparels. The process of preparation of the bio-textile using eco-friendly materials comprises the steps of harvesting, pre-treatment, slurry preparation, structural layer and double layer formation, drying and finishing steps.

The present invention relates to a mobile light source bioreactor with a self-cleaning structure, which belongs to the technical field of sewage biological treatment. The bioreactor includes a reaction tank body and a mobile light source mechanism, the mobile light source mechanism includes a light source and a driving mechanism, the reaction tank body is equipped with a self-cleaning structure, the self-cleaning structure includes a cleaning part that contacts the light source in the upper working position to clean the microorganisms attached to the light source, and also includes a spraying device for spraying the light source cleaned by the cleaning part, which can flush the microorganisms into the reaction tank body to prevent the light source from being affected by the attachment of bacteria and algae microorganisms and affecting the propagation of light. In addition, a water immersion sensor is provided on the light source, which is turned off when it comes out of the water, thereby extending the service life of the light source; the driving mechanism adopts a double-chain synchronous transmission, and the structure is hollowed out to ensure that the transmission does not affect the full mixing of sewage and bacteria and algae organisms.

The present invention relates to a process to obtain a hydrolysate from an algal biomass. The invention further relates to the hydrolysate from an algal biomass obtained by such process, and its use as plant bio-stimulant.

An algae-based thermoplastic foam is provided having a protein-rich algae biomass selected from either microalgae, macroalgae or combinations thereof. The protein content is greater than or equal to 15% by weight of the algae biomass and the algae biomass is dried to a moister content of less than or equal to 15% by weight having an average particle size of up to 200 microns. The composition includes a resin configured to exhibit rheological properties suitable for blending with algae including a melting temperature less than 250° C. and a melt flow rate in excess of 0.01 g / 10 min. The foam includes a foaming ingredient selected from the group consisting of crosslinkers, compatibilizers, plasticizers, accelerants, catalysts, blowing agents, other ingredients, and combinations thereof.

A compact rotary algae biofilm reactor includes an algae biofilm module and a light guide module. The algae biofilm module includes a plurality of rotary members and a reaction tank. In the rotary member, an algae biofilm growth carrier and a power transmission belt are wound on a driving shaft and a driven shaft. A top end of the rotary member is fixed on a fixing frame while a bottom end thereof is submerged in the reaction tank. The light guide module includes a rotatable lens holder. The rotatable lens holder is fixedly provided with a linear Fresnel lens on an upper end thereof and is provided with a light guide plate on a lower end thereof. One side of the linear Fresnel lens is provided with a step motor configured to control the linear Fresnel lens to rotate with an angle of sunlight.

The application discloses a water supply and discharge control method and device applied to algae cultivation, and the method comprises the following steps: collecting a current water quantity parameter of a purification device during cultivation of algae organisms in the purification device; determining whether a target control operation needs to be performed on the purification device according to the current water quantity parameter; if yes, generating a target water quantity control parameter according to the current water quantity parameter, and performing the target control operation on the purification device according to the target water quantity control parameter. It can be seen that the algae organisms in the purification device can be intelligently supplied with water and discharged according to the application, the problem of low water quantity control accuracy in the traditional time-based water supply and discharge method is solved, the wilting and crazy reproduction of the algae organisms are reduced, the normal growth of the algae organisms is ensured, and the air purification work of the purification device can be normally performed.

The utility model relates to the technical field of bio-membrane reactors, in particular to a rotatable algae bio-membrane reactor which comprises a reaction tank, a rotating shaft and a driving motor, a rotating shaft is mounted in the middle of the upper part of the reaction tank through a bearing seat, and a driving motor connected with the rotating shaft is also mounted at one end of the upper part of the reaction tank; a turntable is mounted in the middle of the rotating shaft through a flat key, and the interior of the turntable is uniformly filled with a bacteria room; the cover plate is fixedly installed on the front end face of the rotating disc through screws. The lamp holder is fixed and stretches across the upper part of the reaction tank through bolts, and LED lamp beads are embedded into the inner wall of the lamp holder. Through the improvement on the structure, the device has the advantages of being good in algae microorganism attachment growth effect, having a light supplementing function, fully stabilizing the activity of algae, improving the sewage treatment effect, having practical performance and practical value and the like, so that the problems and defects in the prior art and equipment are effectively solved and overcome.

The invention discloses an efficient carbon capture method based on algae biological carbon sequestration and a reaction device, and relates to the field of algae carbon sequestration. Step 2, adding double carbon sources; step 3, carbon sequestration environment regulation; 4, dynamically adjusting the double carbon sources; step 5, harvesting and adjusting algae. According to the efficient carbon capture method and reaction device based on algae biological carbon sequestration, efficient and stable carbon dioxide sequestration is achieved through systematic integration of algae strain breeding, double-carbon-source supply, environment regulation and intelligent feedback.

The utility model discloses an efficient denitrification and dephosphorization device for mariculture wastewater. The efficient denitrification and dephosphorization device comprises a culture water tank, a drainage pipe, a valve, a coarse filtering tank, a filtering grating, a connecting water pump and a denitrification and dephosphorization assembly, according to the utility model, soluble nitrogen and phosphorus in a water body are converted into large-particle (20-800mu m) microorganisms and algae biomass by utilizing a biofloc technology, part of large-particle filter clusters are absorbed and utilized by filter-feeding animals, part of phosphate and nitrate in tail water are absorbed by utilizing plants and large algae, and finally, a physical filtering system is utilized to filter the tail water. The residual large-particle floccules are removed by the drum filter, and then the residual large-particle floccules are disinfected and purified by the protein separator and the ozone generator and then return to the high-density circulating aquaculture system, so that the expected removal rate of ammonia nitrogen and nitrite in tail water reaches 60% or above, and the daily water change amount of the high-density circulating aquaculture system with the nitrogen and phosphorus removal component is less than 2%.

The invention discloses a high-activity liquid fertilizer as well as a preparation method and application thereof. The high-activity liquid fertilizer is prepared from the following raw materials in parts by mass: 20 to 30 parts of urea, 8 to 12 parts of potassium sulfate, 10 to 15 parts of water-soluble phosphate fertilizer and 1 to 2 parts of trace element fertilizer. The water-soluble phosphate fertilizer is prepared from a papermaking black liquid high-activity extract and dihydrogen phosphate, the trace element fertilizer is composed of an algae high-activity extract and trace elements. According to the method, phenolic substances and organic alkaline substances are added into the papermaking black liquid, effective breakage of C-C bonds is realized by utilizing substances such as potassium tert-butoxide, sodium tert-butoxide and sodium ethoxide, and repolymerization of degradation products is effectively inhibited by adding substances such as phenol and cresol, so that the high-activity extract of the papermaking black liquid is obtained; aiming at algae organisms, after acid treatment, ammonium sulfite and ammonia water continue to react under the high-temperature and high-pressure conditions, so that the high-activity algae extract rich in sulfonic groups is prepared, and the prepared high-activity liquid fertilizer does not generate precipitates after being stored for 180 days under the low-temperature (4 DEG C) condition.

The invention relates to methods for obtaining a fucoxanthin-crystal-containing precipitate, in particular fucoxanthin crystals, in particular fucoxanthin, and a fatty-acid-containing lipid fraction, in particular fatty acids, from the biomass of algae, in particular methods for the integrated extraction and separation of fucoxanthin and fatty acids from the biomass of algae, and to the products obtained from these methods, in particular fucoxanthin crystals and fatty acids.

A biomass material for treating an effluent gas stream includes an algae biomass in an amount of from 40 weight % to 90 weight % based on a total weight of the biomass material and a zeolite in an amount of from 10 weight % to 60 weight % based on a total weight of the biomass material.

The application discloses a 3D bioprinting bacteria-algae symbiotic engineering living material and a preparation method and application thereof. The method takes chlorella as a biological oxygen supply source, takes alkali-producing bacteria as phenol-degrading bacteria, takes sodium alginate and carboxymethyl cellulose as carriers, and respectively prepares bacterial bio-ink and algal bio-ink added with silicon dioxide, so as to build bacteria-algae symbiotic engineering living materials with stripe and layer configurations through a 3D bioprinting mechanism. The bacteria-algae symbiotic engineering living material realizes three-dimensional accurate arrangement and functional partition of bacteria and algae, and exhibits excellent degradation performance and photosynthetic performance under different phenol concentrations, and has application prospects in the biological degradation treatment of organic pollutants.

The invention provides a flue gas pollutant resource utilization method and a flue gas treatment system, and aims to solve the technical problems of low pollutant conversion efficiency, lack of functional partitions of a reactor and low added value of products during existing flue gas treatment. The method comprises the following steps: S1, flue gas pretreatment: cooling and dedusting flue gas and carrying out gradient adsorption on pollutants; s2, biotransformation: converting a sulfur-containing compound into sulfate by using sulfur oxidizing bacteria, and converting a nitrogen-containing compound into algae biomass by using a co-culture system of nitrifying bacteria and microalgae; and S3, product recovery: recovering at least two different types of resource products. According to the method, efficient removal and resource utilization of pollutants are realized through functional partition design, microorganism-algae synergistic metabolism regulation and a product directional separation technology.