System for the purification and reuse of spent brine in a...

Details System for the purification and reuse of spent brine in a... System for the purification and reuse of spent brine in a...

2006-11-07

2006-11-07

Fortuna, Ana (Department: 1723)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S660000, C210S663000, C210S670000, C210S195200, C210S257200

Reexamination Certificate

active

07132052

ABSTRACT:
System and method for purifying and recycling spent brine in a water softener are provided. The system may be made up of a cation exchange resin tank fluidly coupled for passing spent brine comprising monovalent and divalent ions. A fluid mixer valve is coupled to the resin tank and to a water tank to dilute the spent brine to a desired concentration of a regenerant salt, e.g., NaCl. An ion-separation device is fluidly coupled to the fluid mixer valve to receive the diluted spent brine and separate the diluted spent brine into first and second streams. The first of the streams comprises monovalent ions and the second of the streams comprises divalent ions.

REFERENCES:
patent: 3639231 (1972-02-01), Bresler
patent: 3964999 (1976-06-01), Chisdes
patent: 4207397 (1980-06-01), Davis et al.
patent: 4806244 (1989-02-01), Guilhem
patent: 5254257 (1993-10-01), Brigano et al.
patent: 5639377 (1997-06-01), Banham et al.
patent: 5718828 (1998-02-01), Jangbarwala et al.
patent: 5770090 (1998-06-01), Lewis, III
patent: 5932106 (1999-08-01), San Miguel Bento
patent: 6004464 (1999-12-01), Lien
patent: 6077439 (2000-06-01), El-Ammouri et al.
patent: 6117315 (2000-09-01), Masson
patent: 6195825 (2001-03-01), Jones
patent: 6224731 (2001-05-01), Mani
patent: 6508936 (2003-01-01), Hassan
patent: 6669849 (2003-12-01), Nguyen et al.
patent: 6747065 (2004-06-01), Paszkowski
patent: 6783681 (2004-08-01), Mueller et al.
patent: 2003/0015470 (2003-01-01), Muralidhara et al.
Masaru Kurihara, et al.,High Recovery / High pressure Membranes for Brine Conversion SWRO Process Development and its Performance Data, conference proceedings, European Desalination Society and International Water Services Association, Las Palmas, Nov. 9-12, 1999. Also Desalination 125.
David H. Paul,Membrane Separation: Primary Factors Influencing RO Membrane Permeate Flow, Water Conditioning & Purification, Apr. 2002, pp. 30-32.

Affiliated with

Also associated with

Rating

System for the purification and reuse of spent brine in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for the purification and reuse of spent brine in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for the purification and reuse of spent brine in a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3674557