Liquid purification or separation – With means to add treating material – Spaced along flow path
Reexamination Certificate
2006-03-14
2006-03-14
Lawrence, Frank M. (Department: 1724)
Liquid purification or separation
With means to add treating material
Spaced along flow path
Reexamination Certificate
active
07011751
ABSTRACT:
A water treatment system for reducing the level of bacteria in a flow of water by creating an environment favorable for aerobic bacteria and unfavorable for anaerobic bacteria is disclosed. The system may include a method including intaking a flow of water, lowering a pH level of the flow of water to a predetermined range of pH levels, and adding sodium chlorite to the flow of water after lowering the pH level to the predetermined range of pH levels for producing chlorine dioxide. The sodium chlorite is added in an amount sufficient to produce a residual amount of sodium chlorite that does not produce chlorine dioxide, and the flow of water is outputted to the point of use with a residual amount of chlorine dioxide. The system may include an apparatus for carrying out the method of the invention.
REFERENCES:
patent: 2124307 (1938-07-01), Mewborne
patent: 3980435 (1976-09-01), Wimberley
patent: 4247531 (1981-01-01), Hicks
patent: 4250144 (1981-02-01), Ratigan
patent: 4470907 (1984-09-01), Sencza
patent: 5004696 (1991-04-01), Clinkenbeard
patent: 5096589 (1992-03-01), Blind et al.
patent: 5474938 (1995-12-01), Jadesjo et al.
patent: 5565619 (1996-10-01), Thungstrom et al.
patent: 5618440 (1997-04-01), Mason
patent: 5753106 (1998-05-01), Schenck
patent: 5902749 (1999-05-01), Lichtwardt et al.
patent: 5942107 (1999-08-01), Busch, Jr.
patent: 5993671 (1999-11-01), Peltzer
patent: 6113853 (2000-09-01), Nakamura et al.
patent: 6346198 (2002-02-01), Watson et al.
patent: 6458268 (2002-10-01), Grandprey et al.
Waldner Sam G.
Westerman Will
Lawrence Frank M.
Proehl Jeffrey A.
Woods, Fuller, Shultz & Smith P.C.
LandOfFree
Water treatment system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water treatment system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water treatment system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3572913