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.

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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
Application number
ES919101477A
Other languages
English (en)
Other versions
ES2033579B1 (es
Inventor
Hernansaez Jose Lui Lopez-Nino
Diaz Rufino Valverde
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.)
FERTIBERIA, S.L.
Original Assignee
ESPANOLES FERTILIZANTES
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 ESPANOLES FERTILIZANTES filed Critical ESPANOLES FERTILIZANTES
Priority to ES9101477A priority Critical patent/ES2033579B1/es
Publication of ES2033579A1 publication Critical patent/ES2033579A1/es
Application granted granted Critical
Publication of ES2033579B1 publication Critical patent/ES2033579B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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.
ES9101477A 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. Expired - Fee Related ES2033579B1 (es)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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.

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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