157 results about "Algae biomass" patented technology

A method of fractionating biomass, by permeability conditioning biomass suspended in a pH adjusted solution of at least one water-based polar solvent to form a conditioned biomass, intimately contacting the pH adjusted solution with at least one non-polar solvent, partitioning to obtain an non-polar solvent solution and a polar biomass solution, and recovering cell and cell derived products from the non-polar solvent solution and polar biomass solution. Products recovered from the above method. A method of operating a renewable and sustainable plant for growing and processing algae.

The invention relates to systems and methods for regulating algal biomass in offshore waters near an oil and gas production platform. The systems of the invention encompasses a plurality of modules for managing nutrients, algae, and aquaculture, including enclosures for containing aquatic organisms, and various operating subsystems that are operably associated with surface and underwater structures of the platform. In one embodiment of the invention, aquatic organisms are cultured in eutrophic water to feed on algae, thereby reducing the algal biomass. In other embodiments, the diversity of algae in an algal bloom is modified and the productivity of oligotrophic water is increased.

The invention discloses a method for predicting the water area where water bloom of blue algae occurs first next year in a large shallow lake, which is characterized by comprising: based on the area and characteristics of water, setting a monitoring point for sampling water and bottom sediment; characterizing the time and spatial distribution of blue algae by using pigment analysis; characterizing the activity of blue algae in all lake areas by using photosynthesis activity and esterase activity of cells; acquiring meteorological data of the lake areas, and determining an effective wind field; and building an ecological dynamic module to predict the area where the water bloom of blue algae occurs first next year. In the method disclosed by the invention, the biomass and growth activity of the blue algae and the effective wind field are regarded as the common triggering factors of the formation of water bloom, the growth and transport of the blue algae and the driving factors of the formation of the water bloom are analyzed to estimate the change law of the ecological pattern of overwintering and resurrection of blue algae, the formation of water bloom of blue algae is predicted from multiple angles, parameters are integrated by the module, and the prediction result is directly displayed in a blue algae biomass contour map mode according to a time sequence.

Systems and methods for the treatment of lipid-extracted algae biomass and recycling nutrients are provided. The lipid-extracted algae biomass is hydrolyzed prior to anaerobic digestion, and the products generated by anaerobic digestion are further processed to yield by-products that are of use either for external use or as process inputs to carry out specific steps within an integrated algal growth and anaerobic digestion process designed to minimize economic costs, required costly inputs while improving upon system capabilities.

Disclosed is a culture system for the production of algae biomass to obtain lipid, protein and carbohydrate. By integrating heterotrophic processes with a phototrophic process in parallel, this system provides year around production in colder climates. By integrating heterotrophic processes with a phototrophic process in series, this system creates a two-stage, separated mixed-trophic algal process that uses organic carbon and nutrients for the production of seed in the heterotrophic process, followed by release of cultured seed in large-scale phototrophic culture for cell biomass accumulation. Organic carbon source including waste materials can be used to feed the heterotrophic process. The production capacity ratio between the heterotrophic and the phototrophic processes can be adjusted according to season and according to the availability of related resources. The systems are used for producing and harvesting an algal biofuel feedstock as well as other potential high-value products. The sequence and approach enhances utilization of carbon and nutrient waste-streams, provides an effective method for controlling contamination, adds flexibility in regard to production and type of available products, and supplies greater economic viability due to maximized use of available growth surface areas.

The invention relates to biotechnology, in particular to methods and means of physical action on biological structures of photosynthesing microorganisms, phototrophic algae in particular. The invention can be used in pharmaceutical, cosmetic and foodstuff industries, as well as for obtaining biofuel from algae In the process of the method implementation radiation of cultivated solution of photosynthesizing microorganisms/phototrophical algae is carried out by the action of electromagnetic waves of mm range and low intensity. Stimulation of increasing photosynthesizing microorganisms/phototrophical algae biomass and biomass of their pigments (excretions) is obtained with industrial production as a result of the resonance effect which is caused by the interaction of electromagnetic wave and biological cell. Irradiation of cultivated solution of photosynthesizing microorganisms/phototrophical algae is performed by electromagnetic waves of mm range and low intensity at different phases of cultured biological objects development.

Disclosed is a culture system for the production of algae biomass to obtain lipid, protein and carbohydrate. By integrating heterotrophic processes with a phototrophic process in parallel, this system provides year around production in colder climates. By integrating heterotrophic processes with a phototrophic process in series, this system creates a two-stage, separated mixed- trophic algal process that uses organic carbon and nutrients for the production of seed in the heterotrophic process, followed by release of cultured seed in large-scale phototrophic culture for cell biomass accumulation. Organic carbon source including waste materials can be used to feed the heterotrophic process. The production capacity ratio between the heterotrophic and the phototrophic processes can be adjusted according to season and according to the availability of related resources. The systems are used for producing and harvesting an algal biofuel feedstock as well as other potential high-value products. The sequence and approach enhances utilization of carbon and nutrient waste-streams, provides an effective method for controlling contamination, adds flexibility in regard to production and type of available products, and supplies greater economic viability due to maximized use of available growth surface areas.

A robust methodology is described herein for determining the algae biomass photoautotrophic yield (in gram of biomass synthesized per μmole of absorbed photons), which is useful for reliable biomass productivity estimates for selecting, comparing, and optimizing algae cultures for large-scale production. Another method is provided herein to increase dissolved inorganic carbon concentration and alleviate limitations common in aerated small-scale batches. This carbonate addition method allows for a more accurate determination of the algae culture photoautotrophic yield under small-scale experimental conditions. Also provided herein is a method for estimating a light spectrum-dependent scatter-corrected algae-specific absorption cross section, which permits the use of Beer's law to estimate the fraction of photons absorbed by a given algae culture. Determination of the algae photoautotrophic yield and absorption cross section enable a full photobioreactor parameterization and the resulting capacity to achieve highly controlled nutrients-supply conditions.

The invention discloses a submerged macrophytes restoring process guided by water conservation fishery. By stocking silver carp and bighead carp and reducing COD (chemical oxygen demand), TP (total phosphor), chlorophyll and other chemical indexes of the water body, the process effectively reduces the algae biomass in the water body, improves the water body transparency, and achieves the aim of preventing algal bloom and improving the water quality, so an excellent growing condition is provided for aquatic macrophytes (in particular, the submerged macrophytes); and by adding fish and other key organisms eating attaching organisms, which is a key link in a food chain, the attaching organisms growing vigorously on the surface of the submerged macrophytes can be removed in time, and the aim of restoring the submerged macrophytes can be achieved.

The invention belongs to the technical field of environmental protection, and particularly relates to a preparation method of an algae biofilm and application thereof in sewage treatment. The preparation method specifically comprises the steps of carrier pretreating, algae culturing, algae domesticating and algae biofilm preparing. The preparation method of the algae biofilm has the advantages that the preparation cost is low, the raw materials are easy to obtain, and the algae biomass is easy to recycle; the prepared algae biofilm can achieve the efficient nitrogen and phosphorus removal effect in sewage treatment, achieves the purpose of general sewage treatment and not only can overcome the defects that in a suspended algae system, the algae density is low, the hydraulic retention time is long, algae and water are difficult to separate, too more suspended solids (SS) exist, the resource recycling rate is low but also has the advantages of reducing immobilization reagent cost, weakening the influences of immobilization reagents on the algae activity, reusing immobilization carriers and the like.

The invention provides a method for sowing fixed life-form seaweed seedlings on the sea surface. The method comprises the following steps: (1) selection and treatment of shellfish used as substrates of the seaweeds; (2) culture of seedlings of the seaweeds using the shellfish as the substrates; and (3) sowing: the shellfish is lamellibranchia shellfish. The method has the following advantages: the aim that the fixed life-form seaweeds adhere to the submarine rocks through the convenient way of sowing on the sea surface is achieved; the new species (protospecies) for studying propagation and cultivation of the algae in China are convenient to popularize and apply in the submarine algae field; the biomass of the algae in the submarine algae field is increased, the dominant species of the algae are obvious and are convenient to harvest, and the fixed substances of the algae, such as C, N, P and the like, are taken from the sea to the land, so the effect on solving the ecological problemslasts longer and the contributions of the seaweeds to the sea ecology are effective for a long term; the submarine geomorphy is not changed and the original sea ecology is not damaged; the cost is low and the investment is low; and the built submarine algae field can be harvested, the economic benefits are acquired by adding the fishery resources and industrialized popularization and application can be carried out.

Methods and systems for utilizing deep ocean water in the cultivation and harvesting of nutrients and CO₂ for algae and other valuable aquaculture species for the production of algal biomass and the like. The systems of the present invention include a floating deep water harvesting barge, a containment device, and a storage or pumping device. The containment device may be a closed system, an open system, or a photo-bioreactor. The present invention is also directed to improved methods for drying algae biomass and further downstream applications and uses of the algae biomass.

This invention relates to compositions comprising high lipid content algae and methods of making and utilizing the same. In particular, the invention relates to high lipid content algae biomass and algal lipid materials derived from the same, methods of making the same, as well as to biofuels (e.g., biodiesel) and dietary compositions (e.g., animal feeds) comprising or made from the same. Compositions and methods of the invention find use in a variety of applications including biofuel, dietary (e.g., human and animal nutrition), therapeutic as well as research applications.

The present invention is generally directed to a system for producing an algae biomass and wastewater that have reduced concentrations of contaminants. The algae and wastewater treated by the system of the present invention can be combined in a heterotrophic growth system in which the growth of the algae is increased due to the reduced concentration of contaminants. The algae grown in this manner also has a longer shelf life due to the lack of contaminants within the harvested algae.

Carbon dioxide that is collected as a by-product of hydrogen production from a steam methane reformer (SMR) is used as a feed stock for growth of algae biomass for various purposes, e.g. biofuel production, chemical intermediates, nutraceuticals or pharmaceuticals. This invention helps reduce emissions of carbon dioxide, a known greenhouse gas, and helps to optimize algae growth that is used for the production clean biofuel to reduce the dependence on petroleum and fossil fuels.

A three-dimensional grid for use as an algal turf growing surface contains a horizontal planar basal net containing a series of horizontal planar members and upwardly directed members.

A self-contained system which promotes the multiplication of algae from either salt water or fresh water sources as a feedstock. This process inspires a direct output of lipids for bio-diesel fuel as well as a significant raw algae yield which can be further processed into additional bio-fuel as well as other valuable resources. In addition to inspiring a direct output of algal lipids for bio-diesel, the system generates massive raw algae biomass output that can be directly utilized as an agent for efficiently cleaning up oil spills.

The present disclosure describes a process for using saline water, and saline reject water produced in water purification, to use for gold mining production, and growing and harvesting algae. The disclosure also describes a method for growing and harvesting algae utilizing saline water as growth medium for recycling waste water to extract the remaining metals out of waste water. The harvested algae may be used in various applications including but not limited to water purification for gold mining production and to extract metals out of remaining waste water.

The invention belongs to the field of biomass utilization and discloses a method for controlling nitrogen emission in a process of preparing liquid oil from algae. The method comprises the following steps: S1: grinding and drying algae biomass and lignocellulose biomass; S2: putting the lignocellulose biomass in the step S1 into a fixed bed reactor and carrying out a pyrolytic reaction to obtain abiomass carbon additive; S3: mixing the algae biomass and the lignocellulose biomass in the step S1, and pyrolyzing the mixture to obtain a pyrolytic carbon solid and pyrolytic volatile components; S3: enabling a part of the nitrogen-containing substances in the pyrolytic volatile components to fully react with the biomass carbon additive obtained in the step S2, so as to fix a part of the nitrogen in the biomass carbon additive and achieve an aim of reducing nitrogen emission. According to the method provided by the invention, the nitrogen emission is effectively reduced, and the nitrogen can be converted into a nitrogen-doped carbon material with a high added value, thereby facilitating green utilization of the algae biomass.