Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2011-03-01
2011-03-01
Hruskoci, Peter A (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S719000, C210S720000, C210S726000, C210S904000, C210S911000, C210S912000, C210S913000
Reexamination Certificate
active
07897049
ABSTRACT:
Systems and associated methods for treating contaminant-containing wastewater are provided. The systems generally include a reducing zone for reducing the oxidation-reduction potential of the water and a clean-up zone comprising zero valent iron for removing at least a portion of the contaminant from the contaminant-containing water. The systems are operable to remove one or more contaminants from the contaminant-containing water and are operable for extended durations without clogging due to the formation of iron hydroxides.
REFERENCES:
patent: 3575853 (1971-04-01), Gaughan et al.
patent: 4108770 (1978-08-01), Roy
patent: 4565633 (1986-01-01), Mayenkar
patent: 5160632 (1992-11-01), Kleefisch et al.
patent: 5266213 (1993-11-01), Gillham
patent: 5362394 (1994-11-01), Blowes et al.
patent: 5487622 (1996-01-01), Cherry et al.
patent: 5534154 (1996-07-01), Gillham
patent: 5789649 (1998-08-01), Batchelor et al.
patent: 5837145 (1998-11-01), Dzombak et al.
patent: 5975798 (1999-11-01), Liskowitz et al.
patent: 6132623 (2000-10-01), Nikolaidis et al.
patent: 6207114 (2001-03-01), Quinn et al.
patent: 6242663 (2001-06-01), Ponder et al.
patent: 6387276 (2002-05-01), Nikolaidis et al.
patent: 6602421 (2003-08-01), Smith
patent: 6689485 (2004-02-01), Ponder et al.
patent: 6719902 (2004-04-01), Alvarez et al.
patent: 6770205 (2004-08-01), Schroder et al.
patent: 6942807 (2005-09-01), Meng et al.
patent: 7008964 (2006-03-01), Clausen et al.
patent: 7037946 (2006-05-01), Reinhart et al.
patent: 7128841 (2006-10-01), Zhang
patent: 7635236 (2009-12-01), Zhao et al.
patent: 7799232 (2010-09-01), Hayashi et al.
patent: 2006/0016762 (2006-01-01), Cha et al.
patent: 2006/0021946 (2006-02-01), Hensman et al.
Ghosh, Rajat S.; “State of SERDP/ESTCP Funded Zero-Valent Iron (ZVI) Research and Technology, SERDP”, 21 pages, retrieved from the internet on Apr. 2, 2008 at http://www.frtr.gov/pdf/meetings/k--ghosh—09jun04.pdf).
Durant et al., “Remediation of Perchlorate, NDMA, and Chlorinated Solvents Using Nanoscale ZVI” RTDF PRB Workshop Niagra Falls, New York Oct. 16, 2003, pp. 1-31.
Gavaskar et al., “Design Guidance for Application of Permeable Barriers to Remediate Dissolved Chlorinated Solvents” Feb. 1997, pp. 1-192.
Lu et al. “Dechlorination of Hexachlorobenzene by Zero-Valent Iron” Pract. Periodical of Haz., Toxic, and Radioactive Waste Mgmt., vol. 8, Issue 2, Apr. 2004, pp. 136-140 (Abstract only).
University of Cape Town, South Africa Presentation on pe-pH Diagrams, retreived from http://web.uct.ac.za/depts/geolsci/roy/lectures/lec10.pdf in May 2006, pp. 1-15.
Zhang et al., “Removal of Selenate from Water by Zerovalent Iron” J. Environ. Qual. 34; pp. 487-495 (2005) (Abstract only).
Bang, et al., “Chemical reactions between arsenic and zero-valent iron in water,”Water Research39(5): 763-770 (2005).
Ramaswami et al., “Batch-mixed iron treatment of high arsenic waters,”Water Research35(18): 4474-4479 (2001).
Sun et al., “Treatment of groundwater polluted by arsenic compounds by zero valent iron,”Journal of Hazardous Materials129(1-3): 297-303 (2006).
International Search Report and Written Opinion, dated Oct. 30, 2007, from corresponding PCT Application No. PCT/US2007/069016.
Ghose, R.S., Dzombak, D.A. and Luthy, R.G. (1999) “Equilibrium Precipitation and Dissolution of Iron Cyanide Solids in Water”, Environmental Engineering Science, vol. 16, No. 4, pp. 293-313.
Meeussen, J.L., Keizer, M.G., van Rjemsdijk, W.H., and de Haan, F.A.M. (1992), “Dissolution Behavior of Iron Cyanide (Prussian Blue) in Contaminated Soils,” Environmental Science Technology, vol. 26, No. 9, pp. 1832-1838.
Fulmer Dennis
Ghosh Rajat S.
Kitzman Kevin
Smith John
Alcoa Inc.
Greenberg & Traurig, LLP
Hruskoci Peter A
LandOfFree
Methods for treating water using iron does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods for treating water using iron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for treating water using iron will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2705133