ES2156094B1 - Metodo de sedimentacion de particulas semiconductoras coloidales. - Google Patents

Metodo de sedimentacion de particulas semiconductoras coloidales.

Info

Publication number
ES2156094B1
ES2156094B1 ES9902508A ES9902508A ES2156094B1 ES 2156094 B1 ES2156094 B1 ES 2156094B1 ES 9902508 A ES9902508 A ES 9902508A ES 9902508 A ES9902508 A ES 9902508A ES 2156094 B1 ES2156094 B1 ES 2156094B1
Authority
ES
Spain
Prior art keywords
sedimentation
tank
point
once
acid
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.)
Expired - Fee Related
Application number
ES9902508A
Other languages
English (en)
Other versions
ES2156094A1 (es
Inventor
Galvez Julian Blanco
Rodriguez Sixto Malato
Las Nieves Lopez F Javier De
Ibanez Pilar Fernandez
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.)
Centro de Investigaciones Energeticas Medioambientales y Tecnologicas CIEMAT
Universidad de Almeria
Original Assignee
Centro de Investigaciones Energeticas Medioambientales y Tecnologicas CIEMAT
Universidad de Almeria
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 Centro de Investigaciones Energeticas Medioambientales y Tecnologicas CIEMAT, Universidad de Almeria filed Critical Centro de Investigaciones Energeticas Medioambientales y Tecnologicas CIEMAT
Priority to ES9902508A priority Critical patent/ES2156094B1/es
Priority to EP00500235A priority patent/EP1101737A1/en
Publication of ES2156094A1 publication Critical patent/ES2156094A1/es
Application granted granted Critical
Publication of ES2156094B1 publication Critical patent/ES2156094B1/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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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

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)
  • Control Of Non-Electrical Variables (AREA)
  • Catalysts (AREA)
  • Colloid Chemistry (AREA)

Abstract

Método de sedimentación de partículas semiconductoras coloidales. Se basa en el control del pH de la suspensión coloidal, modificándolo de tal manera que se alcance el punto isoeléctrico que es característico de cada tipo de partícula en presencia de un determinado electrolito. Una vez terminado el tratamiento de fotocatálisis se almacena la suspensión coloidal en un tanque y tras homogeneizar la misma mediante agitadores convencionales se toma una muestra representativa del volumen total y se añade una base o un ácido a la misma hasta conseguir el punto de carga eléctrica nula de la muestra. A continuación se añade al tanque de almacenamiento la cantidad adecuada de base o de ácido, extrapolada de la etapa anterior, con lo que se conseguirá el punto de carga eléctrica nula del volumen almacenado en el tanque. Finalmente se retira el sobrenadante limpio, una vez que se ha producido la sedimentación del catalizador en el fondo del tanque de almacenamiento.
ES9902508A 1999-11-16 1999-11-16 Metodo de sedimentacion de particulas semiconductoras coloidales. Expired - Fee Related ES2156094B1 (es)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES9902508A ES2156094B1 (es) 1999-11-16 1999-11-16 Metodo de sedimentacion de particulas semiconductoras coloidales.
EP00500235A EP1101737A1 (en) 1999-11-16 2000-11-16 Method of sedimentation of collodial semiconductor particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9902508A ES2156094B1 (es) 1999-11-16 1999-11-16 Metodo de sedimentacion de particulas semiconductoras coloidales.

Publications (2)

Publication Number Publication Date
ES2156094A1 ES2156094A1 (es) 2001-06-01
ES2156094B1 true ES2156094B1 (es) 2002-03-01

Family

ID=8310597

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9902508A Expired - Fee Related ES2156094B1 (es) 1999-11-16 1999-11-16 Metodo de sedimentacion de particulas semiconductoras coloidales.

Country Status (2)

Country Link
EP (1) EP1101737A1 (es)
ES (1) ES2156094B1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445213C (zh) * 2006-09-25 2008-12-24 同济大学 一种光催化与膜过滤水处理装置
DE102009013255B4 (de) 2009-03-14 2015-12-03 Deutsches Zentrum für Luft- und Raumfahrt e.V. Reinigung leichtflüchtiger organischer Verbindungen
DE102009016433B4 (de) 2009-04-04 2013-10-24 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur kontinuierlichen Abscheidung von kolloidalen Halbleiterphotokatalysatorpartikeln aus wässrigen Suspensionen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN169502B (es) * 1985-11-29 1991-10-26 Council Scient Ind Res
DK0401884T3 (da) * 1989-05-11 1993-10-04 Eniricerche Spa Reaktor til fotooxidation i vandigt miljø
US5130031A (en) * 1990-11-01 1992-07-14 Sri International Method of treating aqueous liquids using light energy, ultrasonic energy, and a photocatalyst
JPH07116407A (ja) * 1993-10-27 1995-05-09 Shinko Pantec Co Ltd ζ電位操作による固液分離・混合方法

Also Published As

Publication number Publication date
ES2156094A1 (es) 2001-06-01
EP1101737A1 (en) 2001-05-23

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