Title:
METHOD FOR SEPARATING OUT AND RECOVERING MICROALGAE
Document Type and Number:
WIPO Patent Application WO/2013/024816
Kind Code:
A1
Abstract:
In the present invention, raw water (W) that contains microalgae is introduced into a pH adjustment flocculation tank (1), and a soluble metal salt for generating a sparingly-soluble hydroxide is added and the pH is adjusted to a predetermined value. Next, the precipitated sparingly-soluble hydroxide causes the microalgae to flocculate, and the flocculated flocs thus generated are separated into flocs and treated water by a solid-liquid separation tank (2). According to this method for separating out and recovering microalgae, microalgae that can be used as an animal feed additive or food product additive can be recovered without the use of a flocculant that contains aluminum, a toxic macromolecular polymer, or the like, from a culture solution that contains the microalgae.
Inventors:
KAKU HIROKAZU (JP)
Application Number:
PCT/JP2012/070496
Publication Date:
February 21, 2013
Filing Date:
August 10, 2012
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
KAKU HIROKAZU (JP)
KAKU HIROKAZU (JP)
International Classes:
C12N1/02; C12N1/12; A23K1/16; A23K1/175; A23L1/30; C02F1/24; C02F1/52
Foreign References:
| JPH0631283A | 1994-02-08 | |||
| JP2009066508A | 2009-04-02 | |||
| JP2011510627A | 2011-04-07 |
Attorney, Agent or Firm:
HAYAKAWA, Yuzi et al. (JP)
Yuji Hayakawa (JP)
Yuji Hayakawa (JP)
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Claims: