Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2007-12-03
2008-12-16
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S674000, C210S681000
Reexamination Certificate
active
07465400
ABSTRACT:
Systems and methods for removing perchlorate load off of ion exchange resins are disclosed. The systems and methods rely upon direct contact between the resin and a liquid product formed by the culturing of perchlorate-destroying microorganisms. These methods can be incorporated into methods for removing perchlorate from aqueous streams. A resin product comprising an anion exchange resin with a coating of perchlorate-destroying microorganisms on its surface is also disclosed.
REFERENCES:
patent: 3755156 (1973-08-01), Yakovlev et al.
patent: 5302285 (1994-04-01), Attaway et al.
patent: 6066257 (2000-05-01), Venkatesh et al.
patent: 6077432 (2000-06-01), Coppola et al.
patent: 6358396 (2002-03-01), Gu et al.
patent: 6407143 (2002-06-01), Even et al.
patent: 6423533 (2002-07-01), Geartheart et al.
patent: 7311843 (2007-12-01), Guter et al.
patent: 2002/0132866 (2002-09-01), Even et al.
patent: 2003/0222031 (2003-12-01), Gu et al.
patent: 199 34 409 (2001-01-01), None
Rikken et al., “Transformation of (per)chlorate into chloride by a newly isolate bacterium: reduction and dismutation,” Appl. Microbial. Biotechnol 45:420-426 (1996).
Gingras et al., “Biological reduction of perchlorate in ion exchange regenerant solutions containing high salinity and ammonium levels,” J. Environ. Monit. 4:96-101 (2002).
Bruce et al., “Reduction of (per)chlorate by a novel organism isolated form paper mill waste,” Environ Microbial 1(4):319-329 (1999).
Logan, et al., “Kinetics of Perchlorate-and-Chlorate-Respiring Bacteria,” Appl. Environ. Microbial 67(6):2499-2506 (2001).
Logan, B. E., “Assessing the outlook for perchlorate remediation,” Environmental Science & Technology 35:23 (2001).
Xu et al., “Microbial Degradation of Perchlorate: Principles and Applications,” Env. Engineer. Science 20:405-422 (2003).
Bae Byung-Uk
Solomon, legal representative Janet A.
Barry Chester T
Basin Water, Inc.
Foley & Lardner LLP
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