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60 results about "Algal growth" patented technology
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Much of the algal growth is attributed to high nutrient levels in the water. The vast majority of these nutrients come from nonpoint sources, such as fertilizer runoff from agriculture and contamination from developed urban areas, that eventually reach the river.
Method for biologically remediating water body and soil comprehensively utilizing resources
ActiveCN103736721ALow costSimple technologyContaminated soil reclamationSustainable biological treatmentAlgal growthBioremediation
The invention discloses a method for biologically remediating a water body and soil comprehensively utilizing resources. The method comprises the steps: (1), determining main pollutants in a selected land area or water body area; (2), selecting to plant and / or cultivate fast-growing herbaceous plants, fast-growing alga, trees, bushes, fungi or microorganisms with high remediation efficiency in the selected land area or water body area; (3), harvesting or collecting the fast-growing herbaceous plants and the fast-growing alga after growing to reach a suitable height or size; (4), concentratedly processing the harvested or collected fast-growing herbaceous plants and the fast-growing alga, and comprehensively utilizing to prevent the pollutants from dispersing; (5), remediating an eutrophic water body by adopting an artificial floating island; (6), remediating a heavy metal polluted water body by confining floating plants; (7), repairing cadmium and zinc polluted soil by mixed-cropping festuca arundinacea and bluegrass; (8), remediating polycyclic aromatic hydrocarbons (PAHs) polluted soil by mixed-cropping alfalfa and italian ryegrass; and (9), extracting and recovering silver from silver-containing wastewater remediation plants.
Owner:湖南绿心科技有限公司
Treatment of swimming pool water
InactiveUS6146539AEasy to controlReduction of unpleasant chloraminesSeparation devicesSedimentation separationAlgal growthPhosphate
Methods and compositions are disclosed for treating swimming pool waters in order to remove one or more nutrients necessary for algal growth and to accelerate the breakdown of objectionable chloramines within chlorinated pool waters. The target nutrients of preference are those containing phosphorus or nitrogen. Phosphorus nutrients are preferably removed by ion-exchange with finely divided lanthanum carbonate, or by direct precipitation in the pool with liquid lanthanum chloride. Nitrogen nutrients (including, in particular, chloramines) may be removed (possibly with the aid of catalysts and in separate reactors). The same reagents used to scavenge phosphates are useful in this regard, the nitrogen being released from the pool water as a nitrogenous gas. To allow the fine lanthanum carbonates to be conveniently handled in the pool environment, they may be linked to larger carrier particles, such as those of diatomaceous earth, or they may be embedded within porous beads formed from polymers or gels. In this form the reagent can be either added to, retained within and backwashed from pool filters, or added directly to pools (with or without a flocculating agent) and sucked to waste after settling. A variety of formulations for these purposes is disclosed.
Owner:NATURAL CHEM
Construction material made of algae, method for cultivating algae, and algae cultivation plant
InactiveUS20110307976A1Promotes algae growthReduce carbon dioxide emissionsUnicellular algaeLayered productsAlgal growthZygnematales
The present disclosure describes use of filamentous algae to form insulating construction materials which provide thermal and noise insulation. Algae from the order Zygnematales, the Cladophorales, or the Ulotrichales can be dried and formed for use as insulating material. Algae mass can be combined into several layers, using a binder to attach the layers to each other. A composite material of algae mass and an additive can be used and form the body of insulation panels having honeycomb-shaped chambers, which are sealed by a foil that is laminated onto the body.Various plants for cultivating algae for use in construction material are disclosed. Plants utilizing gravity harvest comprise cultivation ponds located at a slope, wherein the ponds can be opened to allow algae and water to flow downhill through a collector grill. Plants utilizing net harvest, overflow harvest or rake harvest are described. Carbon dioxide injection concepts utilizing direct and indirect injection of carbon dioxide into algae cultivation ponds are disclosed. An algae harvesting machine is disclosed. Control concepts for controlling the growth of algae in an algae cultivation plant are described.
Owner:PLOECHINGER HEINZ
System and Method for Fuel Generation from Algae
InactiveUS20130023044A1Efficient deliveryHigh retention rateBioreactor/fermenter combinationsBiological substance pretreatmentsAlgal growthLight delivery
Owner:JAGS
System and Method for Biological Wastewater Treatment and for Using the Byproduct Thereof
ActiveUS20080135475A1Facilitates growth of bacteriaImprove responseBioreactor/fermenter combinationsBio-organic fraction processingBiodieselAlgal growth
A wastewater treatment system and process biologically treats wastewater to produce substantially clean water effluent and byproducts. The treatment system includes an array of media wheels that rotate into and out of exposure to sunlight for sustained algae growth. One byproduct is algae removed from the rotating media wheels, which may be provided to other processing facilities to produce, for instance, bio-diesel fuel. Waste CO2 from the processing facility may also be returned to the treatment system for enhanced algae growth. Bacteria is provided to form a symbiotic relationship with the algae, fueled by sunlight to effectively remove toxic materials from the wastewater. Large scale facilities may integrate the treatment systems in a regenerative cycle in which the biomass obtained from the algal colonies is used in a separate facility and byproducts of the operation of the separate facility are used by the treatment system to fuel further algal growth.
Owner:LIMCACO CHRISTOPHER A
Solar plant employing cultivation of organisms
InactiveUS20090197322A1Efficient disseminationSolar heating energyBioreactor/fermenter combinationsAlgal growthSolar plant
A method of growing algae is described that is part of a cogenerational energy production plant in which solar energy from a solar collecting and concentrating field is used to provide photonic energy for the growth and stress phase of algae as well as to provide heat for driving a turbine. The supplementary energy for the power plant is provided by natural gas and by biomethane that is produced by fermentation of the algal biomass. The carbon dioxide that is a by-product of the combustion of both the natural gas and the biomethane is recycled to provide the carbon source for the algal growth.
Owner:BRIGHTSOURCE ENERGY
Biofuel from recombinant oleaginous algae using sugar carbon sources
InactiveUS20120156717A1Increase energy densityImprove efficiencyUnicellular algaeBiofuelsHeterologousBiotechnology
Recombinant oleaginous alga that include one or more heterologous genes that increase the ability of the alga to use one or more natural saccharides such as cellulosic or hemicellulosic sugars for algal growth are described. The recombinant oleaginous algae are transformed to include one or more genes expressing sugar metabolizing enzymes or sugar transporting proteins, along with suitable control elements. Use of natural saccharides as a carbon source can allow the algae to produce biofuel precursors in a relatively efficient manner. Processes for preparing the alga, growing the alga, and extracting the biofuel precursors from the alga are also described.
Owner:PHYCAL
Biological filter for aquatic ecosystems
InactiveUS7578933B1PurifyIncreased algal growthTreatment using aerobic processesWater/sewage treatment by irradiationParticulatesAquatic ecosystem
This invention provides a filtration system for home aquaria that uses a closed-circuit pathway having a surface that contacts a flow of water moving between a tank inlet and tank outlet. The surface allows for algal growth thereon, and for transmission of light thereonto so as to provide photosynthetic energy to the algae. The algae acts to scrub contaminants (nitrogenous compounds, for example) as part of its growth cycle, and thereby purify the water. Additional components, such as injected air and filter media can also be provided to the water circuit to enhance algal growth, oxygenate the water and remove particulates. In an illustrative embodiment, the surface is transparent or translucent and a light that transmits appropriate wavelengths (for example, full-visible spectrum) is placed in proximity to the surface.
Owner:SELMAN BENJAMIN B
Method for inhibiting algal growth using ultrasonic wave
InactiveCN1422951AAchieve the desired purposeUnicellular algaeElectrical/wave energy microorganism treatmentAlgal growthBio engineering
Owner:TSINGHUA UNIV
Algae Farm
InactiveUS20170127656A1Increase intakeTreatment using aerobic processesBiological treatment regulationAlgal growthComparable size
Apparatuses and methods for growing filamentous algae are disclosed. An apparatus comprises vertical surfaces such as plates or tubes which are suspended above the fill line of a water tank. Surfaces can have a frosted texture for algal growth. The surfaces are kept moist by pumping water from the tank through spray bars to the surfaces. Sprayed water drips back into the water tank. Algae growing on a surface can be processed into products such as biofuel and glycerin. Aquatic animals such as fish can be grown in a tank. An aquatic animal can generate nitrogenous waste as nutrient for algae, and provide food for human consumption. The amount of harvestable algae produced by an apparatus can exceed the amount produced from other systems of comparable size over comparable durations. An apparatus can also be utilized to scrub CO2.
Owner:CRICOR INC
Integration of anaerobic digestion in an algae-based biofuel system
InactiveUS8287732B2Generates little or no wasteBioreactor/fermenter combinationsBio-organic fraction processingAlgal growthBiofuel
Owner:WASHINGTON STATE UNIV RES FOUND INC
Method of enhanced sustainable production of algal bio-products, comprising use of symbiotic diazotroph-attenuated stress co-cultivation
InactiveUS20110045564A1Enhanced sustainable productionControl growthBacteriaUnicellular algaeLipid formationAlgal growth
Provided are compositions and methods for sustainable cultivation of algae for biomass, biofuel and bioproduct production, preferably with minimal addition of exogenous nutrients, comprising co-cultivating at least one algal species with at least one aerobic bacterial species and at least one diazotroph (or, in certain embodiments, cultivation of at least one algal species with at least one diazotroph) under continuous sustainable symbiotic conditions, wherein a significant proportion of the macronutrients derive from endogenous decomposed algal and bacterial cells. Certain aspects provide continuous symbiotic diazotroph-attenuated nitrogen stress co-cultivation, wherein a continuous, balanced attenuated nitrogen-stress response provides for adequate sustained algal growth, while yet preserving advantages of algal nitrogen stress responses for algal bioproduct production. Preferred aspects provide for enhanced algal production of at least one of: lipids; triacylglycerols (TAGs); percentage of lips as TAGs; and percentage of saturated and mono-saturated fatty acids relative to polyunsaturated fatty acids (PUFAs) in TAGs.
Owner:DHAMWICHUKORN SRISUDA
Production of omega-3 fatty acids from crude glycerol
InactiveUS20130217084A1Enable productionFatty acids production/refiningUnicellular algaeMicroorganismAlgal growth
The present invention relates to various methods to produce a variety of omega-3 fatty acids from various species of alga using crude glycerol as a substrate for algal growth. In one embodiment, the present invention relates to various methods to produced docosahexaenoic acid (DHA) from a Schizochytrium, Phaeodactylum, Thraustochytrid, Ulkenia, and / or Labyrinthulea species of alga. In another embodiment, the present invention relates to various methods to produced eicosapentaenoic acid (EPA) from a Schizochytrium, Phaeodactylum, Thraustochytrid, Ulkenia, and / or Labyrinthulea species of alga. In one instance, the methods of the present invention utilize crude glycerol as at least a portion of the culture medium for the various micro-organisms disclosed herein to enable the production of one or more omega-3 fatty acids. In one embodiment, the crude glycerol of the present invention can be generated from a biodiesel process as a substrate for the production of either docosahexaenoic acid (DHA) or eicosapentaenoic acid (EPA).
Owner:VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY
System and method for controlling reaction of alga
ActiveCN101639690ARealize monitoringControlling ratio of multiple fluid flowsTemperatue controlControl systemMaster controller
The invention discloses a system and a method for controlling reaction of alga. By adopting a layering gathering-scattering type control structure, a master controller performs unified configuration of the environmental parameter for growth of alga required by a plurality of sub-controllers in the system and transmits the environmental parameter of the alga to the sub-controller corresponding to areactor for cultivating the alga; and the sub-controller monitors the environment of the reactor according to the received environmental parameter to ensure that the environmental parameter of the reactor is in a state suitable for growth of the alga. Accordingly, a great amount of alga cultivating sub-controllers are monitored to make the large-scale industrial production possible.
Owner:ENN SCI & TECH DEV
System for algae-based treatment of water
The inventive technology relates to methods for the algae-based treatment of challenged water. Embodiments of the inventive technology include methods for commercially scalable algal-growth in challenged water. Such methods include, for example a step-wise conditioning process to select and condition algae strains for high growth yields in the presence of challenged water generated from the production of oil and gas or other waste water sources. Such algae-based treatment, in addition to removing harmful chemical compounds from this water may also capture and sequester heavy metal contaminants as well as other compounds for later extraction and processing. The invention also may include embodiments for an algae based desalination system of challenged water, resulting in the production of brine salts and the like. The inventive technology also encompasses an algae-based system to capture and sequester carbon-dioxide from gas and other emissions generated from industrial sources.
Owner:ELDORADO BIOFUELS LLC
Systems and methods for culturing algae with bivalves
InactiveUS8753851B2Bioreactor/fermenter combinationsBiological substance pretreatmentsLipid formationAlgal growth
Owner:LIVEFUELS
Systems and methods for culturing algae with bivalves
InactiveUS20120231513A1Convenient amountBioreactor/fermenter combinationsBiological substance pretreatmentsLipid formationAlgal growth
Provided herein are systems and methods for extracting lipids and / or producing biofuel from algae in marine and freshwater environments, wherein algae and bivalves are co-cultured in a system of enclosures comprising water that comprises recycled nutrients that are essential for algal growth. The system also include enclosures for culturing fishes which are used to harvest the algae.
Owner:LIVEFUELS
Estimation of alga growth stage and lipid content growth rate
Method and system for estimating a growth stage of an alga in an ambient fluid. Measured light beam absorption or reflection values through or from the alga and through an ambient fluid, in each of two or more wavelength sub-ranges, are compared with reference light beam absorption values for corresponding wavelength sub-ranges for in each alga growth stage to determine (1) which alga growth stage, if any, is more likely and (2) whether estimated lipid content of the alga is increasing or has peaked. Alga growth is preferably terminated when lipid content has approximately reached a maximum value.
Owner:NASA +1
Treatment method of eutrophic aquatic product culture wastewater
InactiveCN107434303AEasy to fixImprove pollutionBacteriaWater treatment compoundsAlgal growthEutrophication
The invention discloses a treatment method of eutrophic aquatic product culture wastewater. The method comprises the steps of preparing a copper steel-attapulgite adsorbent, carrying out activation, carrying out loading, and carrying out purification. The method has the beneficial effects that complex florae in a treatment agent metabolize oxidation resisting substances through a propagation action and a synergistic effect, and a stable ecosystem is generated, so that the activity of protozoans, microbes and aquatic organisms with a water purification function in water is recovered; a water purifying agent can be used for decomposing organic macromolecular substances in the water into saccharides, amino acids, vitamins, bio-active substances and the like, which are absorbent to animals and plants, degrading organic macromolecules and inhibiting algal growth; and COD, ammonia nitrogen and nitrite can be effectively removed from the water, the water pollution is improved, the concentration of dissolved oxygen is increased, the content of heavy-metal ions is lowered, the organic macromolecules are degraded, the growth of algae is inhibited, the flocculating settling action on suspended substances in the water is relatively high, and the degree of eutrophication of the aquatic product culture wastewater can be effectively relieved.
Owner:兰溪市普润斯水产养殖技术有限公司
Compositions and methods for increasing oil content in algae
InactiveUS20150004704A1High oil contentHigh activityUnicellular algaeBiofuelsBiotechnologyAlgal growth
Owner:SEEDS LTD
Preparation method and application of bio-organic fertilizer for cultivation of beneficial algas in ponds
InactiveCN104926447ANo secondary pollutionGuaranteed not to loseUnicellular algaeMicroorganism based processesDiseaseNutrition
The invention relates to a preparation method and application of a bio-organic fertilizer for cultivation of beneficial algas in ponds, and belongs to the field of aquaculture subject. The preparation method comprises the following steps: pigs dying of diseases and auxiliary materials are treated with physical crushing, stirring, high-temperature processing and biological fermentation to prepare basic materials; the basic materials are sieved; middle and trace mineral elements are compounded; according to a certain proportion, a restrictive amino acid combination, organic / inorganic N / P or C / N needed by the growth of the aquatic beneficial algas are added to prepare an animal and plant oriented bio-organic fertilizer; according to the method needed by the ecological restoration of the aquaculture water environment, the fertilizer is soaked and splashed or directly and uniformly spread with the fertilizer being dry. According to the preparation method, high-temperature processing at the temperature of over 90 DEG C for 24 hours and high temperature resistant complex beneficial microorganisms are adopted, therefore, the situation that the bio-organic fertilizer avoids the secondary pollution of virus, bacteria and parasites is ensured, loss of nutritional substances like animal and plant oriented protein is guaranteed to be avoided, and the nutrition demands of the aquatic beneficial algas are met through compound.
Owner:扬州市水产生产技术指导站 +1
Composite material for inhibiting algal growth and its use
InactiveCN1891636AAvoid it happening againSolve insolubleWater/sewage treatmentAlgal growthMetal particle
This invention relates to a compound material for suppressing growing of alga including a carrier with porous basic substance and a nm metal mixture covering the carrier, in which, said mixture includes nm metal particles and a substance fixing the particles on the carrier. This invention further provides a method for suppressing the growing of alga.
Owner:APEX NANOTEK CORP
Production of omega-3 fatty acids from crude glycerol
Owner:VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY
Equipment for inhibiting alga growth by utilizing ultrasonic wave
InactiveCN101780997AGrowth inhibitionBroken fastWater/sewage treatment with mechanical oscillationsAlgal growthControl signal
The invention discloses equipment for inhibiting alga growth by utilizing ultrasonic wave and relates to ultrasonic alga inhibiting equipment. The equipment solves the problem that conventional ultrasonic alga inhibiting equipment has no detection unit and automatic power regulating function. In the equipment for inhibiting the alga growth by utilizing the ultrasonic wave, a signal output end of an alga concentration detector is connected with a signal input end of a controller; an ultrasonic control signal output end of the controller is connected with a signal input end of an ultrasonic generator; a water pump control signal output end of the controller is connected with a signal input end of a water pump unit; a signal output end of the ultrasonic generator is connected with a signal input end of an ultrasonic transducer which is arranged inside a tank body; the tank body is provided with a water inlet and a water outlet; and a water outlet of the water pump unit is communicated with the water inlet of the tank body. Bubbles generated by utilizing the ultrasonic wave have a rapid breaking speed and destroy an alga structure so as to inhibit the alga growth. The equipment is applied to water treatment of ultrasonic alga inhibition.
Owner:HARBIN INST OF TECH
Cultivation of sustainable aquatic organisms using multitrophic closed systems
InactiveUS20130186347A1Maximum ultraviolet radiationControl is neededClimate change adaptationPisciculture and aquariaAlgal growthAquatic animal
A multitrophic, inland aquaculture system allows for the cultivation of aquatic animals as a food source and the cultivation of algae for use as biofuel and biomass in a sustainable manner based on the symbiotic nature of the organisms grown. This unique process minimizes biological, energy, and water inputs to create a highly sustainable system by utilizing the cyclic conversion of oxygen to carbon dioxide and back to oxygen as well as using the biological waste from aquatic food organisms to provide nutrients for algae organisms for the benefit of both species. This enables the cultivation of food species in higher densities than previously possible, and eliminates the need to provide additional nutrients, water, and non-atmospheric carbon dioxide for algal growth.
Owner:STEPHENS JESSICA ANN
Method and apparatus to reduce the carbon dioxide content in the earth's atmosphere
ActiveUS20130236950A1Time stableSpeed up the processGas treatmentDispersed particle separationAlgal growthOxidation state
The object of the present invention is an atmospheric bioremediation system focused to reduce the Carbon Dioxide content in the Earth's atmosphere. The disclosed system includes an apparatus to distribute iron in low oxidation states such as zero or plus two trough out the photic region of high nutrients low clorophylls (HNLC) oceans over a period of time. This special apparatus is needed to provide a slow and continuous release of the iron to prevent premature precipitation. It has been shown that microalgae growth is usually initiated by the addition of iron and its sustained feed in water whose only limiting nutrient to prevent algal growth is iron itself. It has also been shown that southern oceans are a possible large batch area where iron is the limiting nutrient.
Owner:ARAMAYO ALBERTO +1
Method for inhibiting growth of cyanobacteria
InactiveCN102040273AGrowth inhibitionEasy to operateWater/sewage treatment by neutralisationChlorophyll aPhylum Cyanobacteria
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)
New technology for river sand modification and algae reduction with combined allelopathic modifier
Belonging to algae removal technologies, the invention relates to a novel algaecide and a new technology for river sand modification and algae reduction with a combined allelopathic modifier. Specifically, natural sediment is adopted as an algae removal carrier, and a natural organic matter (chitosan) is employed as the modifier, after surface coating modification to natural sediment by a combined allelopathic substance (p-hydroxybenzoic acid), the particle surface carrying charge able to neutralize algal cells in water and modify sediment makes algal cells easier to flocculate and gather, and the modifier in the modified sediment can form a network structure to further capture algal cells, and is eventually removed by sedimentation of flocculent bodies or floccules formed by sediment particles. At the same time, as time goes by, allelochemicals released after chitosan hydrolysis can have inhibiting and killing effects on algal growth, thus achieving the purpose of efficient algae removal.
Owner:CHONGQING TECH & BUSINESS UNIV +2
Method for controlling quantity of algae in eutrophic shallow lake
InactiveCN104591394AEasy to controlGrowth inhibitionSpecific water treatment objectivesBiological water/sewage treatmentZooplanktonAlgal growth
The invention provides a method for controlling quantity of algae in a eutrophic shallow lake. Control of large zooplanktons on algae is improved by reducing predation of fishes of eating zooplanktons on large zooplanktons, so that the target of treating water bloom is reached.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY
Method for controlling algal blooms by using submersible type zooplankton incubator
InactiveCN110316832AShape stableStable structureBiological water/sewage treatmentAlgal growthMicrobial agent
The invention discloses a method for controlling algal blooms by using a submersible type zooplankton incubator. The submersible type zooplankton incubator is a device or structural body composed of abuoyancy frame, a bottom net, a cover net, a biological carrier cage, a reticular biological carrier, an aeration pipe, an air conveying pipe, an aeration fan, aquatic plants, a fixed anchor and a cable. A microbial agent and an algae-eating insect preparation sold in the market serve as a means to drive or strengthen water body pollution control and algal bloom control; through a reticular structure of the incubator and the natural swinging function of the incubator in a water body, planktonic algaes and organic debris in the water body are collected or absorbed; through a microbial membraneand the zoogloea growth, the organic matter is degraded and algal cells are destroyed; through the cultivation and incubation of zooplankton, algae can be eaten and the algal growth is controlled; incremental zooplankton and microbial species in the incubator move outside the incubator under the action of natural swinging of the incubator and biological foraging, and such sustained efficacy is achieved that the scope of water treatment is expanded, the water ecosystem is repaired.
Owner:广东河海工程咨询有限公司
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