BR0108625A - Método e aparelho para desinfecção de água de baixo custo - Google Patents

Método e aparelho para desinfecção de água de baixo custo

Info

Publication number
BR0108625A
BR0108625A BR0108625-1A BR0108625A BR0108625A BR 0108625 A BR0108625 A BR 0108625A BR 0108625 A BR0108625 A BR 0108625A BR 0108625 A BR0108625 A BR 0108625A
Authority
BR
Brazil
Prior art keywords
water
ceramic
container
filter
low
Prior art date
Application number
BR0108625-1A
Other languages
English (en)
Inventor
Ashok Gadjil
Anushka Drescher
Original Assignee
Waterhealth International Inc
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 Waterhealth International Inc filed Critical Waterhealth International Inc
Publication of BR0108625A publication Critical patent/BR0108625A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3221—Lamps suspended above a water surface or pipe
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3222—Units using UV-light emitting diodes [LED]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

"MéTODO E APARELHO PARA DESINFECçãO DE áGUA DE BAIXO CUSTO". Trata-se de um sistema de baixo custo (1) para fornecer água de beber, o qual inclui um recipiente de água de alimentação (5) com um filtro de cerâmica simples (20) que cobre uma saída (19) do recipiente de água de alimentação (5). O filtro preferido (20) é geralmente de conformação cilíndrica com um diâmetro interno (19) que se estende parcialmente através do mesmo, em uma configuração comumente denominada de filtro de "vela de cerâmica" em países em desenvolvimento. Sob a força da gravidade, a água de alimentação se filtra através da cerâmica (20) até um recipiente de armazenamento (10) abaixo. A água filtrada é irradiada com energia ultravioleta (UV) ou à medida em que flui ou depois de ser coletada no recipiente de armazenamento (10). Em uma modalidade, a água filtrada é temporariamente coletada em um reservatório de retenção intermediário (210), onde pode ser irradiada de maneira constante em bateladas e periodicamente liberada para o recipiente inferior (10). A filtragem através da cerâmica proporciona água transparente com um baixo coeficiente de extinção UV para uma desinfecção UV mais eficaz. Além disto, a filtragem alimentada pela gravidade através da cerâmica (20) proporciona uma taxa lenta de fluxo de água e consequentemente uma dose elevada de UV para uma dada intensidade UV.
BR0108625-1A 2000-02-25 2001-01-22 Método e aparelho para desinfecção de água de baixo custo BR0108625A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/513,799 US6419821B1 (en) 2000-02-25 2000-02-25 Apparatus for low cost water disinfection
PCT/US2001/002071 WO2001062672A1 (en) 2000-02-25 2001-01-22 Method and apparatus for low cost water disinfection

Publications (1)

Publication Number Publication Date
BR0108625A true BR0108625A (pt) 2002-12-17

Family

ID=24044715

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0108625-1A BR0108625A (pt) 2000-02-25 2001-01-22 Método e aparelho para desinfecção de água de baixo custo

Country Status (6)

Country Link
US (2) US6419821B1 (pt)
CN (1) CN1220634C (pt)
AU (1) AU2001234511A1 (pt)
BR (1) BR0108625A (pt)
MX (1) MXPA02008174A (pt)
WO (1) WO2001062672A1 (pt)

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Also Published As

Publication number Publication date
CN1220634C (zh) 2005-09-28
US6602425B2 (en) 2003-08-05
US20020113022A1 (en) 2002-08-22
AU2001234511A1 (en) 2001-09-03
MXPA02008174A (es) 2004-04-05
CN1406211A (zh) 2003-03-26
WO2001062672A1 (en) 2001-08-30
US6419821B1 (en) 2002-07-16

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.