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A technology of phototrophic biomass and photobioreactor, which is applied in the direction of biomass post-treatment, biomass pre-treatment, microorganisms, etc.
Active Publication Date: 2016-04-13
POND BIOFUELS INC
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Embodiment 1
[0257] A prophetic example will now be described which exemplifies the implementation of determining a target value for a phototrophic biomass growth indicator, such as algae concentration in the reaction zone of a photobioreactor, and performing the above-described Operation of an embodiment of the process includes adjusting the molar rate of discharge of phototrophic biomass-containing product from the reaction zone based on a deviation between a detected value of said process parameter and a target value.
[0258] First, an initial concentration of algae in an aqueous medium containing appropriate nutrients is provided in the reaction zone of the photobioreactor. Gaseous carbon dioxide is supplied to the reaction zone and the reaction zone is exposed to light from a light source, such as an LED, to allow the algae to grow. When the algae concentration in the reaction zone reaches 0.5 grams per liter, water is introduced into the reaction zone of the photobioreactor to harve...
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Abstract
The present invention provides a method of growing phototrophic biomass in a reaction zone comprising a reaction mixture capable of photosynthesis upon exposure to photosynthetically active light radiation. The reaction mixture contains phototrophic biomass available for growth in the reaction zone. In one aspect, the carbon dioxide feed is adjusted in response to the measured process parameters. In another aspect, the input to the reaction zone is adjusted in response to changes in the carbon dioxide feed. In another aspect, the carbon dioxide-containing feed is diluted. In another aspect, the pressure of the carbon dioxide-containing feed is increased. In another aspect, water is condensed from the carbon dioxide-containing feed and recovered for reuse. In another aspect, the phototrophic biomass produced is harvested at a rate close to a predetermined mass growth rate of said phototrophic biomass.
Description
[0001] related application [0002] This application is a continuation-in-part of U.S. Patent Application No. 12 / 784,215 filed May 20, 2010, and a continuation-in-part of U.S. Patent Application No. 12 / 784,181 filed May 20, 2010, or May 2010 Continuation-in-Part of U.S. Patent Application No. 12 / 784,172, filed May 20, or a continuation-in-part of U.S. Patent Application No. 12 / 784,141, filed May 20, 2010, or U.S. Patent Application No. 12 / 784,141, filed May 20, 2010 Continuation-in-Part of Patent Application No. 12 / 784,126, also a continuation-in-part of U.S. Patent Application No. 12 / 784,106, filed May 20, 2010, and also U.S. Patent Application No. 13, filed February 7, 2011 / 022,396 as a continuation in part, and also as a continuation in part of the international application PCT / CA2011 / 000574. technical field [0003] The present invention relates to biomass growth methods. Background technique [0004] Phototrophic organisms have been widely cultivated for the producti...
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