60 results about "Algal growth" patented technology

A novel algae bioreactor and biofuel production system is presented that uses an efficient distribution and delivery mechanism for light, water, nutrient, and carbon dioxide. An efficient light delivery system uses multiple LEDs at red and blue wavelengths to enhance / optimize the algal growth. In addition, multiple light rods are immerses in large and deep bioreactor to achieve even growth of algae within the tank. A novel water / nutrient / CO2 delivery and distribution system enhances CO2 retention in the culture, produces even distribution of nutrient and results in even and rapid algae growth throughout the bioreactor tank. A nutrient delivery system is disclosed based on processing of aquatic waste for superior nutrient for algal growth. The modular design of the system allows for scaling and maintenance, for continuous operation of the plant.

The method that uses ultrasonic to restrain the growth of alga belongs to environment control technology field with ultrasonic, especially refers to the field of controlling alga growth with ultrasonic. The character lies in that it transmits ultrasonic with 1.5-2.0 MHz frequencies and 0.5-0.6 w / cm to the power 2 to alga.

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.

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.

The present invention provides methods and compositions for increasing oil content in algae. More particularly, the present invention relates to enhancement of phytohormone activity in algae, by genetic transformation thereof or by supplementing the algal growth medium with phytohormones, to maximize the production of oil within the algae cells.

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.

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).

The invention discloses a method for inhibiting the growth of cyanobacteria, comprising the following steps of: 1, acidification on a water body to be processed: charging CO2 gas into an inoculated alga solution, and acidifying the alga solution by utilizing the characteristic that CO2 and water react to generate H<+> so that the pH value of the alga solution can reach a preset acidity; 2, continuous CO2 charging: regularly charging CO2 into the alga solution in the daily light period so that the pH value of the alga solution can reach the preset acidity after the acidification process starts; and 3, charging pause: stopping CO2 charging when the alga solution is changed to be almost clear from aqua before CO2 charging and the value of chlorophyll a is close to 0 or the inhibition effect does not change remarkably with the acidifying treatment time, wherein the step 2 further comprises a step of monitoring the pH value of the alga solution and the chlorophyll a: measuring the pH value of the alga solution and the chlorophyll a before CO2 charging every day. By utilizing a method of using CO2 to acidify alga growth environment to inhibit the growth of the cyanobacteria, the invention can effectively inhibit the growth of the cyanobacteria with strong practical operability and does not have the problem of secondary pollution.