WO2012172559A3 - Filtre servant à l'élimination d'arsenic au moyen de poudre de fer et de cendre de balle de riz revêtue d'hydroxyde ferrique - Google Patents

Filtre servant à l'élimination d'arsenic au moyen de poudre de fer et de cendre de balle de riz revêtue d'hydroxyde ferrique Download PDF

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Publication number
WO2012172559A3
WO2012172559A3 PCT/IN2012/000096 IN2012000096W WO2012172559A3 WO 2012172559 A3 WO2012172559 A3 WO 2012172559A3 IN 2012000096 W IN2012000096 W IN 2012000096W WO 2012172559 A3 WO2012172559 A3 WO 2012172559A3
Authority
WO
WIPO (PCT)
Prior art keywords
ferric hydroxide
iron powder
rice husk
removal filter
hydroxide coated
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.)
Ceased
Application number
PCT/IN2012/000096
Other languages
English (en)
Other versions
WO2012172559A2 (fr
Inventor
Viviek GANVIR
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.)
Tata Consultancy Services Ltd
Original Assignee
Tata Consultancy Services Ltd
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 Tata Consultancy Services Ltd filed Critical Tata Consultancy Services Ltd
Publication of WO2012172559A2 publication Critical patent/WO2012172559A2/fr
Publication of WO2012172559A3 publication Critical patent/WO2012172559A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/103—Arsenic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/203—Iron or iron compound

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)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

La présente invention concerne un appareil et un procédé pour éliminer le fer et l'arsenic qui contaminant de l'eau potable. Ledit appareil comprend un double étage filtrant, à savoir un étage de préfiltration et un élément de filtration principale, le préfiltre éliminant les flocons de fer et le pH étant maintenu dans une plage de 6,0-8,5. Ce pH contribue à améliorer la capacité d'adsorption de la cendre de balle de riz revêtue d'hydroxyde ferrique. Ledit appareil supprime également l'encrassement du filtre provoqué par les particules de fer, par l'intermédiaire d'un étage de préfiltration.
PCT/IN2012/000096 2011-06-15 2012-02-13 Filtre servant à l'élimination d'arsenic au moyen de poudre de fer et de cendre de balle de riz revêtue d'hydroxyde ferrique Ceased WO2012172559A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1747MU2011 2011-06-15
IN1747/MUM/2011 2011-06-15

Publications (2)

Publication Number Publication Date
WO2012172559A2 WO2012172559A2 (fr) 2012-12-20
WO2012172559A3 true WO2012172559A3 (fr) 2013-04-04

Family

ID=47357553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2012/000096 Ceased WO2012172559A2 (fr) 2011-06-15 2012-02-13 Filtre servant à l'élimination d'arsenic au moyen de poudre de fer et de cendre de balle de riz revêtue d'hydroxyde ferrique

Country Status (1)

Country Link
WO (1) WO2012172559A2 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149953A (en) * 1977-05-31 1979-04-17 R. H. Bouligny, Inc. Apparatus for removing impurities from waste water
US5080805A (en) * 1988-05-04 1992-01-14 Helen Houser Method and apparatus for removing iron from well water
US6200482B1 (en) * 1997-08-12 2001-03-13 Adi International Inc. Arsenic filtering media
US7459086B2 (en) * 2002-05-07 2008-12-02 Otv Sa S.A. Method for treating water containing iron, manganese and arsenic
WO2010150273A1 (fr) * 2009-06-22 2010-12-29 Tata Consultancy Services Ltd. Procédé et dispositif de purification d'eau contaminée par l'arsenic
US7892436B2 (en) * 2005-04-25 2011-02-22 The Regents Of The University Of California Compositions and methods for removing arsenic in water

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149953A (en) * 1977-05-31 1979-04-17 R. H. Bouligny, Inc. Apparatus for removing impurities from waste water
US5080805A (en) * 1988-05-04 1992-01-14 Helen Houser Method and apparatus for removing iron from well water
US6200482B1 (en) * 1997-08-12 2001-03-13 Adi International Inc. Arsenic filtering media
US7459086B2 (en) * 2002-05-07 2008-12-02 Otv Sa S.A. Method for treating water containing iron, manganese and arsenic
US7892436B2 (en) * 2005-04-25 2011-02-22 The Regents Of The University Of California Compositions and methods for removing arsenic in water
WO2010150273A1 (fr) * 2009-06-22 2010-12-29 Tata Consultancy Services Ltd. Procédé et dispositif de purification d'eau contaminée par l'arsenic

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KHAN, SB ET AL.: "Appraisal Of A Simple Arsenic Removal Method For Groundwater Of Bangladesh.", J. ENVIRON. SCI. HEALTH., vol. A35, no. 7, 2000, pages 1021 - 1041 *
NOUBACTEP, C.: "Metallic Iron For Safe Drinking Water Worldwide.", CHEMICAL ENGINEERING JOURNAL., vol. 165, no. 2, 1 December 2010 (2010-12-01), pages 740 - 749, Retrieved from the Internet <URL:http://www.sciencedirect.com/science/article/pii/S1385894710008958> [retrieved on 20121026] *

Also Published As

Publication number Publication date
WO2012172559A2 (fr) 2012-12-20

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