ES2033579A1 - Procedimiento e instalacion para la eliminacion del arsenio y otros metales en aguas residuales por precipitacion alcalina utilizando agentes reductores. - Google Patents
Procedimiento e instalacion para la eliminacion del arsenio y otros metales en aguas residuales por precipitacion alcalina utilizando agentes reductores.Info
- Publication number
- ES2033579A1 ES2033579A1 ES919101477A ES9101477A ES2033579A1 ES 2033579 A1 ES2033579 A1 ES 2033579A1 ES 919101477 A ES919101477 A ES 919101477A ES 9101477 A ES9101477 A ES 9101477A ES 2033579 A1 ES2033579 A1 ES 2033579A1
- Authority
- ES
- Spain
- Prior art keywords
- metals
- arsenic
- removal
- waters
- residual waters
- 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
Links
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
PROCEDIMIENTO E INSTALACION PARA LA ELIMINACION DEL ARSENICO Y OTROS METALES EN AGUAS RESIDUALES POR PRECIPITACION ALCALINA UTILIZANDO AGENTES REDUCTORES. EL PROCEDIMIENTO COMPRENDE BASICAMENTE EL TRATAMIENTO DE DICHAS AGUAS RESIDUALES CON SULFATO FERROSO COMO AGENTE REDUCTOR EN UN MEDIO AMONIACAL, CON LO QUE SE OBTIENE UNA SOLUCION CLARA PRACTICAMENTE EXENTA DE AS Y OTROS METALES, LOS CUALES PRECIPITAN COMO ARSENITO FERROSO BASICO O HIDROXIDOS Y SE SEPARAN POR FILTRACION. EL PROCEDIMIENTO ES ADECUADO PARA TRATAR AGUAS RESIDUALES INDUSTRIALES CON UN CONTENIDO EN H2SO4 DE O A 20% EN PESO Y DE HASTA 20 G/L DE AS. LA INSTALACION INCLUYE UN REACTOR DE ARMONIZACION (T-2) Y PREVE EL EMPLEO DE UNA TORRE (T-4) PARA EL LAVADO DE LOS POSIBLES GASES QUE NO ESTUVIERAN DISUELTOS. MEDIANTE ESTE PROCEDIMIENTO E INSTALACION SE ELIMINA EL AS CON LO QUE EL EFLUENTE TRATADO NO SUPONE UN PELIGRO MEDIOAMBIENTAL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9101477A ES2033579B1 (es) | 1991-06-21 | 1991-06-21 | Procedimiento e instalacion para la eliminacion del arsenio y otros metales en aguas residuales por precipitacion alcalina utilizando agentes reductores. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9101477A ES2033579B1 (es) | 1991-06-21 | 1991-06-21 | Procedimiento e instalacion para la eliminacion del arsenio y otros metales en aguas residuales por precipitacion alcalina utilizando agentes reductores. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2033579A1 true ES2033579A1 (es) | 1993-03-16 |
ES2033579B1 ES2033579B1 (es) | 1994-02-16 |
Family
ID=8272764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9101477A Expired - Fee Related ES2033579B1 (es) | 1991-06-21 | 1991-06-21 | Procedimiento e instalacion para la eliminacion del arsenio y otros metales en aguas residuales por precipitacion alcalina utilizando agentes reductores. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2033579B1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1037197C (zh) * | 1994-01-09 | 1998-01-28 | 高尚俭 | 从含砷废水中提取砷的方法及装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH573874A5 (en) * | 1973-02-06 | 1976-03-31 | Attisholz Cellulose | Decolorisation and purificn. of waste waters contg. dyestuffs - by contact with finely divided iron at acid pH |
US4405464A (en) * | 1981-08-31 | 1983-09-20 | Kerr-Mcgee Nuclear Corporation | Process for the removal of selenium from aqueous systems |
US4806264A (en) * | 1987-09-01 | 1989-02-21 | The United Sates Of America As Represented By The Secretary Of The Interior | Method of selectively removing selenium ions from an aqueous solution |
EP0409140A1 (en) * | 1989-07-17 | 1991-01-23 | Coltec Industries Inc | Method for removing hexavalent chromium from water |
ES2019009A6 (es) * | 1989-12-29 | 1991-05-16 | Espanoles Fertilizantes | Procedimiento e instalacion para la eliminacion con sulfhidrico a presion, de arsenico y otros metales en aguas residuales procedentes de plantas industriales. |
-
1991
- 1991-06-21 ES ES9101477A patent/ES2033579B1/es not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH573874A5 (en) * | 1973-02-06 | 1976-03-31 | Attisholz Cellulose | Decolorisation and purificn. of waste waters contg. dyestuffs - by contact with finely divided iron at acid pH |
US4405464A (en) * | 1981-08-31 | 1983-09-20 | Kerr-Mcgee Nuclear Corporation | Process for the removal of selenium from aqueous systems |
US4806264A (en) * | 1987-09-01 | 1989-02-21 | The United Sates Of America As Represented By The Secretary Of The Interior | Method of selectively removing selenium ions from an aqueous solution |
EP0409140A1 (en) * | 1989-07-17 | 1991-01-23 | Coltec Industries Inc | Method for removing hexavalent chromium from water |
ES2019009A6 (es) * | 1989-12-29 | 1991-05-16 | Espanoles Fertilizantes | Procedimiento e instalacion para la eliminacion con sulfhidrico a presion, de arsenico y otros metales en aguas residuales procedentes de plantas industriales. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1037197C (zh) * | 1994-01-09 | 1998-01-28 | 高尚俭 | 从含砷废水中提取砷的方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
ES2033579B1 (es) | 1994-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC2A | Transfer of patent |
Owner name: FERTIBERIA, S.L. |
|
PC2A | Transfer of patent | ||
FD2A | Announcement of lapse in spain |
Effective date: 20111201 |