Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2008-01-01
2008-01-01
Drodge, Joseph (Department: 1723)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S688000, C210S716000, C210S912000, C423S138000, C423S632000
Reexamination Certificate
active
10818552
ABSTRACT:
The present invention comprises a method and composition using akaganeite, an iron oxide, as an ion adsorption medium for the removal of arsenic from water and affixing it onto carrier media so that it can be used in filtration systems.
REFERENCES:
patent: 3563890 (1971-02-01), Perl et al.
patent: 5124044 (1992-06-01), Cassidy et al.
patent: 5205931 (1993-04-01), Iida
patent: 5453201 (1995-09-01), Etzel et al.
patent: 5591346 (1997-01-01), Etzel et al.
patent: 5769961 (1998-06-01), Peters et al.
patent: 5908557 (1999-06-01), Smith et al.
patent: 6042731 (2000-03-01), Bonnin
patent: 6107354 (2000-08-01), Shaniuk et al.
patent: 6368510 (2002-04-01), Friot
patent: 6468942 (2002-10-01), Sansalone
patent: 6787041 (2004-09-01), Chwirka
patent: 6790363 (2004-09-01), Vempati
patent: 6824690 (2004-11-01), Zhao et al.
patent: 6896813 (2005-05-01), Harthill et al.
patent: 2001/0052495 (2001-12-01), Friot
patent: 2002/0025911 (2002-02-01), Aoyagi et al.
patent: 2002/0090261 (2002-07-01), Sansalone
patent: 2003/0150818 (2003-08-01), Carter et al.
patent: 57-127409 (1982-08-01), None
Translated Abstract for JP57-127409.
American Chemical Society, “Existing Technologies Can Remove Arsenic, but at a Cost”,Environmental Science&Technology News, (Feb. 1, 2000),75 A.
Bates, Jared T., “Batch Studies of Arsenic Removal from Drinking Water Using Manganese Greensand”,MS Thesis, Las Cruces NM, New Mexico state University, Abstract and index,(1998),5pp.
Canning, Kathie , “Water/Wastewater Treatment: Technology Takes Arsenic to New Lows”,Pollution Engineering, (May 2000),10-11.
Environmental Protection Agency, “Technical Fact Sheet: Final Rule for Arsenic in Drinking Water”,USEPA EPA 815-F-00-016(website printout), (2001),1-5.
Environmental Protection Agency, “Technologies and Costs for Removal of Arsenic from Drinking Water”,USEPA EPA-815-R-00-028, Index,(Dec. 2000).
Gregor, Jan , “Arsenic Removal During Conventional Aluminium-Based Drinking-Water Treatment”,Water Resources, vol. 35, No. 7, (2001), 1659-1664.
Metcalf & Eddy, Inc., “Wastewater Engineering: Treatment, Disposal, and Reuse”, Third Edition revised by George Tchobanoglous and Franklin L. Burton, Irwin-McGraw-Hill, Inc., Boston MA, Index,(1991).
Miller, Gregory P., et al., “A Comment on Arsenic Species Separation Using Ion Exchange”,Water Resources, vol. 34, (2000),1397-1400.
Pontius, Frederick W., et al., “Health Implications of Arsenic in Drinking Water”,Journal of the American Water Works Association, vol. 86, (1994),52-63.
Ryker, Sarah J., et al., “Mapping Arsenic in Groudwater”,Geotimes, vol. 46, (Nov. 2001),34-36.
Sanchez, Cassia M., “Batch Studies for the Treatment of Arsenic Contaminated Water Using an Iron Oxyhydroxide”,MS Thesis, Las Cruces NM, New Mexico State University,Abstract and index,(2002).
Sugii, Atsushi , et al., “Adsorption of Mercury(II) on Macroreticular Styrene-Divinylbenzene Copolymer Beads”, Pergamon Press Ltd, Great Britain, (1979),941-944.
Thirunavukkarasu, O. S., et al., “Removal of Arsenic in Drinking Water by Iron Oide-Coated Sand and Ferrihydrite—Batch Studies”,Water Qual. Res. J., Canada; vol. 36, No. 1, (2001),55-70.
Thompson, Graham W., “Removal of MTBE from Aqueous Solution by Tailored Zeolite Sorption”,MS Thesis, Las Cruces NM, New Mexico State University, Abstract and Index,(2000).
Tokunaga, S. , et al., “Removal of Arsenic(III) and Arsenic(V) Ions from Aqueous Solutions with Lanthanum(***) Salt and Comparison with Aluminum(III), Calcium(II), and Iron(III) Salts”,Water Environmental Research, vol. 71, No. 3, (1999),299-306.
Torrens, Kevin D., “Water Works: Evaluating Arsenic Removal Technologies”,Pollution Engineering, vol. 31, (1999),25-28.
Tortora, Phyllis G., et al., “Understanding Textiles”, Fifth Edition, Merrill of Prentice Hall, Upper Saddle River NJ, Columbus OH, Index,(1997).
Vogels, Christopher M., “Remediation of Arsenic from Aqueous Solution Using Iron(II) and Iron(VI) and the Reaction Kenetics and Mechanisms of the Oxidation of Arsenite and Phenylarsine Oxide by Potassium Ferrate”,MS Thesis, Las Cruces NM, New Mexico State University, Abstract and index ,(1996).
Vrijenhoek, Eric M., et al., “Arsenic Removal fromDrinking Wate by a “Loose” Nanofiltration Membrane”,Desalination, vol. 130, (2000),265-277.
Waychunas, Glenn A., “Crystal Chemistry of Oxides and Oxyhydroxides”,Textbook: Oxide Minerals: Petrologic and Magnetic Significance, Chelsea MI, BookCrafters, Inc., (1991),11-61.
Xy, Yanhua , et al., “Adsorption of Arsenic(V) by Use of Aluminium-Loaded Shirasu-Zeolites”,Chemistry Letters, (1998),1015-1016.
Editor, “Technology Update—Existsing Technologies can Remove Arsenic, but at a Cost”,Environmental Science&Technology—News, American Chemical Society, (2000),75A.
Jekel, M. , et al., “Comparison of Conventional and New Techniques for the Removal of Arsenic in a Full Scale Water Treatment Plant”,Proceedings of IWA World Water Congress, Special Subject No. 13, (1999),16-19.
Schwertmann, C. , et al., “Iron Oxides in the Laboratory: Preparation and Characterization”, Weinheim, Germany: VCH Verlagsgesselschaft mbH, Index pp., (10991), undated.
Cadena C. Fernando
Johnson Michael D.
Arrowhead Center, Inc.
Drodge Joseph
Oaxaca Vidal A.
Peacock Deborah A.
Peacock & Myers, P.C.
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