MAGNETIC SEPARATION OF ALGAE

摘要

Described herein are methods and systems for harvesting, collecting, separating and/or dewatering algae using iron based salts combined with a magnetic field gradient to separate algae from an aqueous solution.

主权项

1. A method comprising exposing an aqueous solution comprising algae and an iron salt selected from the group consisting of FeSO4; FeBr2; FeBr3; FeCl2; FeCl3; FeF2; FeF3; FeI2; FeMoO4; (NH4)2Fe(SO4)2.6H2O; C2OH2OCl2FeN4; FeCl2.4H2O; C6H5FeO7; FeF3.3H2O; Fe(NO3)3.9H2O; Fe(C2O4).2H2O; Fe(C2O4).2H2O; Fe2(C2O4)3.6H2O; Fe(ClO4)2.xH2O; FePO4.4H2O; Fe4(P2O7)3; FeSO4.xH2O; Fe2(SO4)3.xH2O; Fe(BF4)2.6H2O; K4Fe(CN)6.3H2O and a combination of two or more thereof to a magnetic field gradient having sufficient strength to separate the algae from the aqueous solution, whereby the method results in the algae being separated from the aqueous solution.