ES2193854A1 - Procedimiento para la eliminacion de fluoruro en aguas residuales. - Google Patents

Procedimiento para la eliminacion de fluoruro en aguas residuales.

Info

Publication number
ES2193854A1
ES2193854A1 ES200102606A ES200102606A ES2193854A1 ES 2193854 A1 ES2193854 A1 ES 2193854A1 ES 200102606 A ES200102606 A ES 200102606A ES 200102606 A ES200102606 A ES 200102606A ES 2193854 A1 ES2193854 A1 ES 2193854A1
Authority
ES
Spain
Prior art keywords
fluoride
removal
addition
calcium chloride
waste water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES200102606A
Other languages
English (en)
Other versions
ES2193854B1 (es
Inventor
Isaac Rosa Guzman
Martinez Alfonso Blanco
Lopez Antonio Rojas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elcogas S A
Original Assignee
Elcogas S A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elcogas S A filed Critical Elcogas S A
Priority to ES200102606A priority Critical patent/ES2193854B1/es
Publication of ES2193854A1 publication Critical patent/ES2193854A1/es
Application granted granted Critical
Publication of ES2193854B1 publication Critical patent/ES2193854B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Procedimiento para la eliminación de fluoruro de aguas residuales El procedimiento comprende a) determinar el pH del agua residual que contiene fluoruro a tratar y, en su caso, ajustarlo a un valor comprendido entre 8,5 y 8,8; b) añadir al agua residual con el pH ajustado cloruro cálcico y un floculante catiónico orgánico para formar una suspensión de una fase sólida en una fase líquida; c) separar la fase sólida formada en la etapa b) de dicha fase líquida; y d) recircular parte de la fase sólida separada en la etapa c) a la etapa b). De aplicación para reducir la concentración de fluoruro en aguas residuales.
ES200102606A 2001-11-23 2001-11-23 Procedimiento para la eliminacion de fluoruro en aguas residuales. Expired - Fee Related ES2193854B1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200102606A ES2193854B1 (es) 2001-11-23 2001-11-23 Procedimiento para la eliminacion de fluoruro en aguas residuales.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200102606A ES2193854B1 (es) 2001-11-23 2001-11-23 Procedimiento para la eliminacion de fluoruro en aguas residuales.

Publications (2)

Publication Number Publication Date
ES2193854A1 true ES2193854A1 (es) 2003-11-01
ES2193854B1 ES2193854B1 (es) 2005-03-01

Family

ID=29762967

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200102606A Expired - Fee Related ES2193854B1 (es) 2001-11-23 2001-11-23 Procedimiento para la eliminacion de fluoruro en aguas residuales.

Country Status (1)

Country Link
ES (1) ES2193854B1 (es)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8308810A1 (es) * 1981-07-25 1983-10-01 Bayer Ag Procedimiento para purificar aguas residuales fluoruradas.
US5403495A (en) * 1992-03-13 1995-04-04 Tetra Technologies, Inc. Fluoride removal system
US5443741A (en) * 1990-11-19 1995-08-22 Imperial Chemical Industries Plc Treatment of dilute acidic solutions
FR2771727A1 (fr) * 1997-11-28 1999-06-04 Sgs Thomson Microelectronics Defluoruration d'eaux usees
EP0972749A2 (en) * 1998-07-15 2000-01-19 Nec Corporation Method and device for processing waste water containing fluoride

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8308810A1 (es) * 1981-07-25 1983-10-01 Bayer Ag Procedimiento para purificar aguas residuales fluoruradas.
US5443741A (en) * 1990-11-19 1995-08-22 Imperial Chemical Industries Plc Treatment of dilute acidic solutions
US5403495A (en) * 1992-03-13 1995-04-04 Tetra Technologies, Inc. Fluoride removal system
FR2771727A1 (fr) * 1997-11-28 1999-06-04 Sgs Thomson Microelectronics Defluoruration d'eaux usees
EP0972749A2 (en) * 1998-07-15 2000-01-19 Nec Corporation Method and device for processing waste water containing fluoride

Also Published As

Publication number Publication date
ES2193854B1 (es) 2005-03-01

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