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Removal of phosphate from waste water 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C02C-005/02
출원번호 US-0077389 (1970-10-01)
발명자 / 주소
  • Kleber Eugene V. (Woodland Hills CA) Recht Howard L. (Northridge CA)
출원인 / 주소
  • Rockwell International Corporation (El Segundo CA 02)
인용정보 피인용 횟수 : 27  인용 특허 : 0

초록

A method for chemically removing phosphates from waste waters by treating the phosphate-containing waste water with a trivalent rare earth salt, generally as a mixture of such salts, to form an insoluble rare earth phosphate precipitate, and then separating the precipitate from the waste water. The

대표청구항

The method for chemically treating waste water to remove phosphate-containing anions present therein which includes the steps for direct removal of said anions consisting essentially of adding a trivalent rare earth cation in soluble form to the waste water to react with the phosphate-containing ani

이 특허를 인용한 특허 (27)

  1. Smith, Paul K.; Badger, Timothy J., Anti-microbial and oxidative co-polymer.
  2. Burba, III, John L.; Hassler, Carl R.; O'Kelley, C. Brock; Lupo, Joseph A.; Pascoe, Joseph R., Apparatus for treating a flow of an aqueous solution containing arsenic.
  3. Misra, Manoranjan; Nanor, Joseph, Arsenic absorbing composition and methods of use.
  4. Misra, Manoranjan; Nanor, Joseph, Arsenic adsorbing composition and methods of use.
  5. Misra, Manoranjan; Nanor, Joseph, Arsenic adsorbing composition and methods of use.
  6. Burba, John, Composition and process for making the composition.
  7. Witham, Richard Donald; McNew, Edward Bayer; Burba, III, John Leslie, Composition for removing arsenic from aqueous streams.
  8. Mills Dudley John (30 Hutchison Crescent Kambah ; A.C.T. AUX), Composition for the treatment of swimming pool water.
  9. Burba, III, John L., Composition for treating a fluid.
  10. Denkewicz ; Jr. Raymond P. ; Senderov Ernest E. ; Grenier Joseph W. ; Souza Therese, Lanthanide halide water treatment compositions and methods.
  11. Liao, Zhimin; Yuan, Zhihua; Zhou, Jialin; He, Lingyun; Chen, Shuyan; Wan, Aiguo; Chen, Wenqian, Method for removing phosphorus.
  12. Hughes Geoffrey F. (260 Hodenpyl Dr. SE. Grand Rapids MI 49506), Method for restoring and maintaining eutrophied natural bodies of waters.
  13. Tusa Esko (Kauniainen FIX) Matt Raimo (Helsinki FIX) Ruuskanen Antti (Kerava FIX), Method for volume reduction of low activity organic wastes from nuclear power plants by anaerobic decomposition.
  14. Kulperger, Robert; Okun, Richard; Munford, Glenn, Methods and compositions using lanthanum for removing phosphate from water.
  15. Robert Kulperger ; Richard Okun ; Glenn Munford CA, Methods and compositions using lanthanum for removing phosphates from water.
  16. Smith,Paul K.; Badger,Timothy J., Oxidation of heavy metal ions.
  17. Smith,Paul K.; Badger,Timothy J., Particulate alumina and process for removing metal ions from water.
  18. Burba, III, John L.; Oriard, Tim L., Process and apparatus for treating a gas containing a contaminant.
  19. Misra Manoranjan ; Nanor Joseph ; Priyadarshan Gautam, Process for removal and stabilization of arsenic and selenium from aqueous streams and slurries.
  20. McNew,Edward Bayer; Witham,Richard Donald; Burba, III,John Leslie, Process using rare earths to remove oxyanions from aqueous streams.
  21. Cable, Robert; Hassler, Carl; Burba, John, Rare earth removal of hydrated and hydroxyl species.
  22. Grant Brian Douglas AU, Remediation material and remediation process for sediments.
  23. Psaras, Dimitrios; Gao, Yuan; Haneline, Mason; Lupo, Joseph; Landi, Carol, Removal of arsenic from aqueous streams with cerium (IV) oxide compositions.
  24. Misra,Manoranjan; Lenz,Peter, Removal of arsenic from drinking and process water.
  25. Mills Dudley John,AUX, Treatment of swimming pool water.
  26. Mills Dudley John,AUX, Treatment of swimming pool water.
  27. Witham, Richard Donald; McNew, Edward Bayer; Burba, III, John Leslie, Water purification device for arsenic removal.
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