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특허 상세정보

Method and apparatus for purifying water

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-061/00   
미국특허분류(USC) 210/652; 210/650; 210/805; 210/321.65; 210/295; 210/087; 210/090; 210/134
출원번호 US-0060087 (1993-05-11)
우선권정보 SE-9201512.2 (1992-05-13)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Cushman, Darby & Cushman
인용정보 피인용 횟수 : 25  인용 특허 : 8
초록

When applying a method and an arrangement for purifying water, an inflow of contaminated water is converted to a pressure elevated flow which is divided in a purifying unit into a purified outflow and a contaminated outflow, which in turn is divided into a return flow and a reject flow. With the intention of providing a large return flow under high pressure for the purpose of rinsing clean the filter unit during operation, the return flow includes a first return flow (return conduit 24) which is recycled to the pressure-elevated flow (pressure conduit 16...

대표
청구항

1. A method for purifying water, comprising: (a) converting an inflow of non-purified water to a pressure-elevated flow; (b) dividing said pressure-elevated flow by any one of reverse osmosis, nanofiltration and ultrafiltration, in a purifying unit, into a purified outflow and a concentrate outflow; (c) dividing said concentrate outflow into a first return flow and a second flow; (d) returning said first return flow to said pressure-elevated flow at a flow rate substantially larger than that of said inflow; (e) dividing said second flow into a thi...

이 특허를 인용한 특허 피인용횟수: 25

  1. Oklejas, Jr., Eli. Batch-operated reverse osmosis system. USP2014088808538.
  2. Oklejas, Jr., Eli. Batch-operated reverse osmosis system with manual energization. USP2011027892429.
  3. Oklejas, Jr., Eli. Batch-operated reverse osmosis system with multiple membranes in a pressure vessel. USP2012048147692.
  4. Oklejas, Jr., Eli. Central pumping and energy recovery in a reverse osmosis system. USP2016049321010.
  5. Oklejas, Jr., Eli. Central pumping and energy recovery in a reverse osmosis system. USP2013098529761.
  6. Wiemers, Reginald A.. Electrocoagulation apparatus with in-place electrode cleaning. USP2013058435391.
  7. Clements, Martin A.; Nyzen, Robert; Ogger, John P.; Flynn, William T.. Filter assembly for fuel supply to actuators and fuel control system of aircraft engine and method. USP2014028647503.
  8. Miller Rhonda. Filtration method for metal working waste water. USP1998125853593.
  9. Wolf, Mark E.. Fluid treatment system, a fluid processing apparatus and a method of treating a mixture. USP2017089724707.
  10. Eli Oklelas, Jr.. Method and apparatus for boosting interstage pressure in a reverse osmosis system. USP2002106468431.
  11. Oklejas, Jr., Eli. Method and apparatus for lubricating a thrust bearing for a rotating machine using pumpage. USP2013098529191.
  12. Oklejas, Jr., Eli. Method and apparatus for membrane recirculation and concentrate energy recovery in a reverse osmosis system. USP2004096797173.
  13. Oklejas, Jr., Eli. Method and system for performing a batch reverse osmosis process using a tank with a movable partition. USP2018059975089.
  14. Zappe Ronald J.. Method for controlling the quality of cooking fats and cooking oils. USP2001046210590.
  15. Zappe Ronald J.. Method of controlling the fatty acid content of cooking fats or cooking oils. USP2001126325941.
  16. Wiemers, Reginald A.; Kohlheb, Robert; Khalili, Bardia B.; Lipovszki, Gyorgy; Zahn, Peter H.. Mobile station and methods for diagnosing and modeling site specific full-scale effluent treatment facility requirements. USP2014078790517.
  17. Wiemers, Reginald A.; Kohlheb, Robert; Khalili, Bardia B.; Lipovszki, Gyorgy; Zahn, Peter H.. Mobile station for diagnosing and modeling site specific effluent treatment facility requirements. USP2017109776893.
  18. Friedrichsen, Welm; Olsen, Palle; Haugaard, Erik. Reverse osmosis system. USP2016089416795.
  19. Oklejas, Jr., Eli. Reverse osmosis system with control based on flow rates in the permeate and brine streams. USP20180810052589.
  20. Oklejas, Jr., Eli. Reverse osmosis system with control based on flow rates in the permeate and brine streams. USP2017119808764.
  21. Oklejas, Jr., Eli. Reverse osmosis system with control based on flow rates in the permeate and brine streams. USP2012038128821.
  22. Okeljas, Jr., Eli. Reverse osmosis system with energy recovery devices. USP2017079695064.
  23. Oklejas, Jr., Eli. Thrust balancing in a centrifugal pump. USP2011098016545.
  24. Vuong,Diem Xuan. Two stage nanofiltration seawater desalination system. USP2006127144511.
  25. Rhoades,Frank G.. Water treatment system. USP2008077404926.