METHOD OF SEPARATING AND RECOVERING MICROALGAE
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United States of America Patent
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Sep 18, 2014
app pub date -
Aug 10, 2012
filing date -
Aug 12, 2011
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Abstract
Raw water containing microalgae is introduced to a pH adjusting aggregation tank, and a soluble metal salt for generating a hardly-soluble hydroxide is added for adjusting to a predetermined pH. Subsequently, microalgae is aggregated by a precipitated hardly-soluble hydroxide, and generated aggregated flocks are separated to aggregated flocks and treated water in a solid-liquid separation tank. According to the method of separating and recovering microalgae, microalgae can be recovered from a culture solution containing microalgae without using a flocculant containing aluminum or poisonous macromolecule polymer, etc. and used as a feed additive or food additive.
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