Harvesting of Polycyclic Aromatic Hydrocarbons (PAHs)-Degrading Bacteria by Magnetic Flocculation

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Magnetic flocculation was reported to be efficient to harvest microalgae. However, little is known about the recovery of PAHs-degrading bacteria from the culture by magnetic flocculation. Advenella kashmirensis strain w13003, a PAHs-degrading bacterium, was harvested by magnetic flocculation using magnetite and polyferric sulphate (PFS) as flocculants. The results showed the treatment with magnetite and PFS showed high concentration factor with flocculation efficiency near 100%, which suggest magnetic flocculation could result in a high concentration factor without significantly loss of PAHs-degrading bacteria. This is the first report about the recovery of PAHs-degrading bacteria by magnetic flocculation, which suggest its potential in bacterial harvesting.

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563-566

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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