Water purification by polymer colloids

Details Water purification by polymer colloids Water purification by polymer colloids

2006-12-26

2006-12-26

Hruskoci, Peter A. (Department: 1724)

Liquid purification or separation

With means to add treating material

C210S205000, C210S263000, C210S290000, C210S484000, C210S490000

Reexamination Certificate

active

07153420

ABSTRACT:
A colloid comprises a sulfone polymer. The colloid may be used as a replacement for activated carbon or charcoal in water purification systems. Unlike activated carbon, the colloid is advantageously regenerated chemically and reused.

REFERENCES:
patent: 2684950 (1954-07-01), Rivers et al.
patent: 3272782 (1966-09-01), Lang
patent: 3272784 (1966-09-01), Lang
patent: 4247432 (1981-01-01), Huang et al.
patent: 4321174 (1982-03-01), Hoy et al.
patent: 4451424 (1984-05-01), Tweddle et al.
patent: 4569989 (1986-02-01), Madison
patent: 4661257 (1987-04-01), Kreevoy et al.
patent: 4990248 (1991-02-01), Brown et al.
patent: 5041335 (1991-08-01), Inai et al.
patent: 5149437 (1992-09-01), Wilkinson et al.
patent: 5418203 (1995-05-01), Ichikawa et al.
patent: 5434226 (1995-07-01), Nguyen et al.
patent: 5695647 (1997-12-01), Carbonell et al.
patent: 5904832 (1999-05-01), Clifford et al.
patent: 5969082 (1999-10-01), Kuwahara et al.
patent: 6030704 (2000-02-01), Wilshaw et al.
patent: 6110375 (2000-08-01), Bacchus et al.
patent: 6451921 (2002-09-01), Weisse et al.
patent: 6565749 (2003-05-01), Hou et al.
patent: 6572769 (2003-06-01), Rajan et al.
patent: 6688477 (2004-02-01), Kalthod
patent: 6849186 (2005-02-01), Johnson et al.
Berkland, C., et al., “Fabrication of PLG microspheres with precisely controlled and monodisperse size distributions,” Journal of Controlled Release, vol. 73, pp. 59-74 (2001).
Fritzsche, A.K., et al., “The Effect of Free Volume on Enhanced Transport Rates of Polysulfone Hollow Fiber from Lewis Acid: Base Solvent Complexes”, Journal of Membrane Science, 46 (1989) pp. 135-155. Elsevier Science Publishers B.V., Amsterdam—Printed in The Netherlands.
Frost & Sullivan, “Activated Carbon: Sinking Market or Secure Opportunity?” at http://www.waternet.com
ews.asp.
Humic Acid, at http://www.greensmiths.com/humic.html.
Murakami, H., et al., “Preparation of poly(DL-lactide-co-glycolide) nanoparticles by modified spontaneous emulsification solvent diffusion method,” International Journal of Pharmaceutics, vol. 187, pp. 143-152 (1999).
Nick Kociuk, et al., “Water Purification and Desalination”, http://shell.rmi.net/chill/chemistry/h2o/h2o.html, dated Jan. 2, 2001, 5 pages.
Solvay Advanced Polymers, Radel® Udel® and Mindel® sulfone polymers pack a powerful punch, at http://www.solvayadvancedpolymers-us.com/ep—performance—amorphous.htm, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Udel® P-1700, at http://www.solvayadvancedpolymers-us.com/epdatasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Udel® GF-120, at http://www.solvayadvancedpolymers-us.com/epdatasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® A-200, at http://www.solvayadvancedpolymers-us.com/epdatasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® A-300, at http://www.solvayadvancedpolymers-us.com/epdatasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® AG-320, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® AG-330, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® R-5000, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® R-5100 NT15, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® R-5500, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® R-5800 NT15, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Radel® R-7700 NT15, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Mindel® B-430, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Solvay Advanced Polymers, Mindel® S-1000, at http://www.solvayadvancedpolymers-us.com/ep—datasheet.asp, Feb. 4, 2002, 2p.
Product Information Sheet for x-100: TRITON X-100 tm, at http://www.sigma.sial.com/sigma/proddata/t6878.html, Feb. 4, 2002, 3p.
Product Information Sheet for Triton Detergents: Octylphenol Series, at http://www.sigma.sial.com/sigma/proddata/t5678x.htm, Feb. 4, 2002, 1p.
Von Wandruszka, R., Final Report: The Secondary of Humic Acid and its Environmental Implications, at http://es.epa.gov
cerga/final/vonwandruszka.html, Feb. 4, 2002, 5p.

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