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Method of drinking water treatment with natural cationic polymers 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C02F-001/56
출원번호 US-0268266 (1994-06-29)
발명자 / 주소
  • Murcott Susan E. (Marblehead MA) Harleman Donald R. F. (Cambridge MA)
출원인 / 주소
  • Massachusetts Institute of Technology (Cambridge MA 02)
인용정보 피인용 횟수 : 35  인용 특허 : 0

초록

A method for treating water using natural polymers that provide an alternate and improved means to achieve enhanced coagulation is described. A method for removing particles, color, and color from drinking water, comprising adding a primary coagulant such as a natural, cationic polymer like chitosan

대표청구항

A method of treating drinking water containing suspended matter, comprising: adding a primary coagulant and coagulant aid to drinking water to form a mixture, the primary coagulant added in an amount effective to form a floc including said suspended matter in the drinking water and comprising a natu

이 특허를 인용한 특허 (35)

  1. Jogikalmath, Gangadhar; Schneider, Andrea; Soane, David S., Additives for papermaking.
  2. La Fargue ; Jr. Aubrey A., Auto dosage determination method and apparatus for coagulant control in the treatment of water.
  3. Wei, I-Chien; Lee, Kung-Hsing; Hung, Hsien-Ming; Tsao, Ning; Hsu, Meng-Hui; Lin, Shan-Ying; Huang, Ya-Hui, Chemically modified polyaminosaccharide by a hydrocarbyl sultone compound.
  4. Haase Richard Alan, Clarification of water and wastewater.
  5. Brummett,Ken, Compositions for wastewater treatment.
  6. Albu, Michael L.; Beauchamp, Phillip J., Compositions incorporating chitosan for paint detackification.
  7. Dunn Joseph E. ; Clark Reginald Wayne ; Bushnell Andrew H. ; Salisbury Kenton J, Deactivation of organisms using high-intensity pulsed polychromatic light.
  8. Theivendran, Sivarooban; Kubinec, James J.; Snelling, Jeff, Filter comprising a halogen release system and chitosan.
  9. Brady,Brent S., Flocculating agent for clarifying the water of man-made static water bodies.
  10. Jogikalmath, Gangadhar; Kincaid, Patrick D.; Reis, Lynn; Soane, David S., High strength paper.
  11. Chang Tiao J. ; Bartrand Timothy A., Method and apparatus for controlling macrofoulers in on-demand water conduits.
  12. Tzipori, Saul; Zukerman, Udi; Stacey, Gary, Method and device for the concentration of multiple microorganisms and toxins from large liquid toxins.
  13. Albu, Michael L.; Beauchamp, Phillip J., Method for paint detackification using compositions containing chitosan.
  14. Benn James A. ; Thode Kenneth C., Method for removing contaminants from water with the addition of oil droplets.
  15. Nichols,Everett J.; Williams,Jeffrey F., Method for removingoocysts from water.
  16. Bolton, James R.; Stevens, R. D. Samuel; Dussert, Bertrand, Method for the inactivation of cryptosporidium parvum using ultraviolet light.
  17. Nichols, Everett J.; Williams, Jeffrey F.; Scott, James R.; Palczewski, Christine M., Method for the removal of submicron particulates from chlorinated water by sequentially adding a cationic polymer followed by adding an anionic polymer.
  18. Tudor Helen E. A., Method for treating contaminated liquids.
  19. Harmon Bud G. ; Barlow Stacey L., Method of treating a meat processing plant waste stream.
  20. Berg, Michael C.; Dise, John H.; Mahoney, Robert P.; Petersen, Kevin T.; Soane, David S.; Stokes, Kristoffer K.; Ware, Jr., William; Thakrar, Atul C., Methods for removing finely dispersed particulate matter from a fluid stream.
  21. Harvey, Anthony Reid, Porous grog composition, water purification device containing the porous grog and method for making same.
  22. Cable, Robert; Hassler, Carl; Burba, John, Rare earth removal of hydrated and hydroxyl species.
  23. Psaras, Dimitrios; Gao, Yuan; Haneline, Mason; Lupo, Joseph; Landi, Carol, Removal of arsenic from aqueous streams with cerium (IV) oxide compositions.
  24. Harvey,Anthony Reid, Silver chloride treated water purification device containing the porous grog and method for making same.
  25. Eyrisch Oliver,DEX, Substantially water-insoluble cationized solids, and their preparation and use.
  26. Kincaid, Patrick D.; Mahoney, Robert P.; Soane, David, System, methods, processes and apparatus for removing finely dispersed particulate matter from a fluid stream.
  27. Soane, David; Ashcraft, Nathan, Systems and methods for recovering fine particles from fluid suspensions for combustion.
  28. Soane, David S.; Ashcraft, Nathan; Kyaw, Phyo, Systems and methods for removing finely dispersed particles from mining wastewater.
  29. Berg, Michael C.; Dise, John H.; Petersen, Kevin T.; Soane, David; Stokes, Kristoffer K.; Ware, Jr., William; Thakrar, Atul C., Systems and methods for removing finely dispersed particulate matter from a fluid stream.
  30. Soane, David; Ware, Jr., William; Mahoney, Robert P.; Ashcraft, Nathan, Systems and methods for removing finely dispersed particulate matter from a fluid stream.
  31. Hughes Paul A., Treatment process for removing microbial contaminants suspended in wastewater.
  32. Nichols, Everett J.; Scott, James R.; Williams, Jeffrey F.; Chen, Yongjun, Use of a dual polymer system for enhanced water recovery and improved separation of suspended solids and other substances from an aqueous media.
  33. Hall, David, Water enhancement system.
  34. Hall, David, Water enhancement system.
  35. Souter, Philip Frank; Ure, Colin, Water treatment compositions.
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