BRPI0519771A2 - processo para filtrar água, meio de filtro, e, dispositivo de purificação de água alimentado por gravidade - Google Patents

processo para filtrar água, meio de filtro, e, dispositivo de purificação de água alimentado por gravidade

Info

Publication number
BRPI0519771A2
BRPI0519771A2 BRPI0519771-6A BRPI0519771A BRPI0519771A2 BR PI0519771 A2 BRPI0519771 A2 BR PI0519771A2 BR PI0519771 A BRPI0519771 A BR PI0519771A BR PI0519771 A2 BRPI0519771 A2 BR PI0519771A2
Authority
BR
Brazil
Prior art keywords
filter medium
water
purification device
filtration process
gravity powered
Prior art date
Application number
BRPI0519771-6A
Other languages
English (en)
Inventor
Romesh Gupta
Samiran Mahapatra
Nimish Harshadrai Shah
Sukdeb Pal
Madalasa Srivastava
Original Assignee
Unilever Nv
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 Unilever Nv filed Critical Unilever Nv
Publication of BRPI0519771A2 publication Critical patent/BRPI0519771A2/pt

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
    • C02F1/28—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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

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)
  • Water Treatment By Sorption (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Removal Of Specific Substances (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

PROCESSO PARA FILTRAR áGUA, MEIO DE FILTRO, E, DISPOSITIVO DE PURIFICAçãO DE áGUA ALIMENTADO POR GRAVIDADE. A invenção diz respeito a um processo para filtrar água compreendendo passar a água através de um leito de um meio de filtro compreendendo 1 a 20% em peso de espécies metálicas multivalentes positivamente carregadas pré-hidrolisadas adsorvidas em um substrato sólido em que as ditas espécies têm uma razão de OH para metal entre 0,5 e 3. O metal multivalente inclui alumínio, ferro, zinco, cálcio ou magnésio. A invenção também diz respeito aos meios de filtro compreendendo tratar um substrato sólido com uma solução aquosa de uma espécie metálica multivalente positivamente carregada pré-hidrolisada e um biocida adicional.
BRPI0519771-6A 2004-12-31 2005-12-19 processo para filtrar água, meio de filtro, e, dispositivo de purificação de água alimentado por gravidade BRPI0519771A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1436MU2004 2004-12-31
PCT/EP2005/013812 WO2006069712A1 (en) 2004-12-31 2005-12-19 Filter media and process to prepare the same

Publications (1)

Publication Number Publication Date
BRPI0519771A2 true BRPI0519771A2 (pt) 2009-06-23

Family

ID=35705245

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0519771-6A BRPI0519771A2 (pt) 2004-12-31 2005-12-19 processo para filtrar água, meio de filtro, e, dispositivo de purificação de água alimentado por gravidade

Country Status (9)

Country Link
EP (1) EP1838623B1 (pt)
CN (1) CN101094811B (pt)
AT (1) ATE420058T1 (pt)
BR (1) BRPI0519771A2 (pt)
DE (1) DE602005012320D1 (pt)
MX (1) MX2007008002A (pt)
PL (1) PL1838623T3 (pt)
WO (1) WO2006069712A1 (pt)
ZA (1) ZA200704993B (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009046191A2 (en) 2007-10-03 2009-04-09 3M Innovative Properties Company Microorganism concentration process and agent
US9145541B2 (en) 2007-10-03 2015-09-29 3M Innovative Properties Company Microorganism concentration process
CN101981177B (zh) 2007-10-03 2013-06-26 3M创新有限公司 微生物浓集方法
EP2184263A1 (en) 2008-11-06 2010-05-12 Unilever N.V. Water purification device
JP5727383B2 (ja) 2008-12-31 2015-06-03 スリーエム イノベイティブ プロパティズ カンパニー 大腸菌群の検出プロセス及びこのプロセスで使用するためのキット
CN101898051B (zh) * 2009-12-30 2013-11-27 王建民 一种过滤器
CN102336457B (zh) * 2010-07-22 2013-02-13 中国石油天然气股份有限公司 一种原位晶化母液的综合利用方法
MX361308B (es) * 2014-01-22 2018-12-03 Unilever Nv Un método para modificar caracteristicas de superficie de alúmina.
CN109133404A (zh) * 2017-06-16 2019-01-04 江苏立业环境科技有限公司 一种天然气钻井废水处理工艺
CN111302600A (zh) * 2020-02-20 2020-06-19 中国科学院生态环境研究中心 改善给水厂污泥脱水性能的调理剂及其制备方法和应用
CN111939880B (zh) * 2020-08-13 2023-07-14 河北蓝江生物环保科技有限公司 矿山用液态助滤剂及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5911882A (en) * 1988-05-10 1999-06-15 University Of Washington Removing contaminants from water using iron oxide coated mineral having olivine structure
US5369072A (en) * 1988-05-10 1994-11-29 University Of Washington Granular media for removing contaminants from water and methods for making the same
US5616243A (en) * 1994-06-17 1997-04-01 Levy; Ehud Filter for inverted bottle type water dispenser
US6113792A (en) * 1995-06-20 2000-09-05 University Of Washington Method for removing contaminants from water using membrane filtration in combination with particle adsorption to reduce fouling
CN1161880A (zh) * 1996-04-11 1997-10-15 中国人民解放军59174部队 一种载阳电荷硅胶粒状吸附滤材
CN1393401A (zh) * 2001-07-04 2003-01-29 北京运衡兴源科技发展有限公司 改性沸石及其制备、应用和再生
US6861002B2 (en) * 2002-04-17 2005-03-01 Watervisions International, Inc. Reactive compositions for fluid treatment
CN1225413C (zh) * 2003-11-19 2005-11-02 吉林大学 去除病毒和细菌的纳米净水材料、制备方法及应用

Also Published As

Publication number Publication date
ZA200704993B (en) 2008-09-25
WO2006069712A1 (en) 2006-07-06
MX2007008002A (es) 2007-08-23
EP1838623B1 (en) 2009-01-07
PL1838623T3 (pl) 2009-06-30
DE602005012320D1 (de) 2009-02-26
CN101094811B (zh) 2010-05-12
EP1838623A1 (en) 2007-10-03
ATE420058T1 (de) 2009-01-15
CN101094811A (zh) 2007-12-26

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2285 DE 21/10/2014.