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Reclaiming of spent brine 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-061/04
출원번호 US-0005668 (1993-01-19)
발명자 / 주소
  • Brigano Frank A. (Hoffman Estates IL) Soucie William J. (Grayslake IL) Rak Stanley F. (Mundelein IL)
출원인 / 주소
  • Culligan International Company (Northbrook IL 02)
인용정보 피인용 횟수 : 32  인용 특허 : 0

초록

The method of purifying spent brine from the regeneration of ion exchange resin, for example resin in water softeners. The method comprises acidifying the spent brine to a pH of less than 3 with an acid other than sulfuric acid, which acid is preferably chosen from at least one acid which forms a ca

대표청구항

The method of purifying spent brine from the regeneration of ion exchange resin, which comprises: acidifying said spent brine to a pH of less than 3 with hydrochloric acid; and passing said brine through a nanofiltration membrane to purify said brine by separating from said brine a waste stream whic

이 특허를 인용한 특허 (32)

  1. Thimmesch, Kevin; Poe, Jerry, Blended salt composition and method of using.
  2. Hawkins, John; Nyberg, Eric; Kayser, George; Holmes, James; Schoenstein, Paul; Janah, Ashok, Cartridge having textured membrane.
  3. Eldridge, Robert James; Norret, Marck; Dahlke, Thomas W.; Ballard, Mathew John; Adams, Beryn John, Complexing resins and method for preparation thereof.
  4. Nyberg, Eric David; Vogdes, Christine Ellen; Holmes, James Crawford; Janah, Ashok Kumar, Electrochemical ion exchange treatment of fluids.
  5. Nyberg, Eric David; Vogdes, Christine Ellen; Holmes, James Crawford; Janah, Ashok Kumar, Electrochemical ion exchange treatment of fluids.
  6. Hawkins, John; Nyberg, Eric; Kayser, George; Holmes, James Crawford; Schoenstein, Paul; Janah, Ashok, Electrochemical ion exchange with textured membranes and cartridge.
  7. Marks Robert E. ; Field Stephen D. ; Field Mary Madden, Equipment for electochemical collection removal of ions.
  8. Miller Rhonda, Filtration method for metal working waste water.
  9. Bourke,Michael Francis; Nguyen,Hung Van, Inorganic contaminant removal from water.
  10. Gifford, Joseph D.; Arba, John W.; Freydina, Evgeniya; Jha, Anil D.; Liang, Li-Shiang; Wang, Lu, Low scale potential water treatment.
  11. Gifford, Joseph D.; Arba, John W.; Freydina, Evgeniya; Jha, Anil; Liang, Li-Shiang; Wang, Lu, Low scale potential water treatment.
  12. Wilkins, Frederick C.; Jha, Anil D.; Ganzi, Gary C., Method and apparatus for desalination.
  13. Mueller,Paul; Myers,Anthony G, Method and apparatus for treatment of a fluid stream.
  14. Mueller,Paul; Myers,Anthony G., Method and apparatus for treatment of a fluid system.
  15. Mukhopadhyay,Debasish, Method and apparatus for treatment of feedwaters by membrane separation under acidic conditions.
  16. Li, Aimin; Xu, Zixiao; Li, Wentao; Jiang, Bicun; Zhou, Qing; Shuang, Chendong; Jiang, Yeli; Wang, Mengqiao, Method for resourceful utilization of desorption liquid generated in the resin ion exchange process.
  17. Twardowski Zbigniew,CAX ; Ulan Judith G.,CAX, Nanofiltration of concentrated aqueous salt solutions.
  18. Vero, Gregory Mark; Smith, Paul, Plug-flow regeneration process.
  19. Grayson John R., Pressurized brining system.
  20. Hook, Bruce; Tirtowidjojo, Dan; Mehta, Anil, Process and apparatus for purification of industrial brine.
  21. Sengupta, Arup K.; Li, Ping; Murray, Brendan J.; Harrison, Stuart D.; Vero, Gregory M., Process for treating concentrated salt solutions containing DOC.
  22. Bargeman, Gerrald; Demmer, René Lodewijk Maria; Ten Kate, Antoon; Kuzmanovic, Boris; Van Lare, Cornelis Elizabeth Johannus; Mayer, Mateo Jozef Jacques; Schutyser, Maarten André Irène; Westerink, Jan Barend, Process to prepare chlorine-containing compounds.
  23. Bargeman, Gerrald; Demmer, René Lodewijk Maria; Ten Kate, Antoon; Kuzmanovic, Boris; Van Lare, Cornelis Elizabeth Johannus; Mayer, Mateo Jozef Jacques; Schutyser, Maarten André Irène; Westerink, Jan Barend, Process to prepare salt.
  24. Vora, Nishith; Elyanow, Irving; Chiappa, Giuseppe; Radice, Giovanni; Mor, Luca, Seawater desalination plant and production of high purity salt.
  25. Lien Larry A., Spent brine reclamation.
  26. Jessen, H. Martin; Dole, Eric John; Morgan, David, System for ion exchange resin regeneration and regenerant recovery.
  27. Rawson,James Rulon Young; Ayala,Raul Eduardo, System for the purification and reuse of spent brine in a water softener.
  28. Freydina, Evgeniya; Gifford, Joseph D., Systems and methods for water treatment.
  29. Freydina, Evgeniya; Gifford, Joseph D., Systems and methods for water treatment.
  30. Freydina, Evgeniya; Gifford, Joseph D., Systems and methods for water treatment.
  31. Cartwright, Peter S., Water softener system using nanofiltration to reclaim a portion of the regenerating sodium chloride.
  32. Cartwright, Peter S., Water softener using nanofiltration to reclaim a portion of the regenerating solution.
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