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ES2128250A1 - Systems for the biological removal of nitrogen and phosphorus in a process using activated sludges - Google Patents

Systems for the biological removal of nitrogen and phosphorus in a process using activated sludges

Info

Publication number
ES2128250A1
ES2128250A1 ES09602751A ES9602751A ES2128250A1 ES 2128250 A1 ES2128250 A1 ES 2128250A1 ES 09602751 A ES09602751 A ES 09602751A ES 9602751 A ES9602751 A ES 9602751A ES 2128250 A1 ES2128250 A1 ES 2128250A1
Authority
ES
Spain
Prior art keywords
anoxic
phosphorus
nitrogen
systems
activated sludges
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
ES09602751A
Other languages
Spanish (es)
Other versions
ES2128250B1 (en
Inventor
Torre Juan Antonio Cortacans
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.)
Infilco Espanola S A
Original Assignee
Infilco Espanola S A
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 Infilco Espanola S A filed Critical Infilco Espanola S A
Priority to ES9602751A priority Critical patent/ES2128250B1/en
Publication of ES2128250A1 publication Critical patent/ES2128250A1/en
Application granted granted Critical
Publication of ES2128250B1 publication Critical patent/ES2128250B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

Systems for the biological removal of nitrogen and phosphorus in a process using activated sludges. The system, which is suitable for use in a method for the treatment of wastewater using activated sludges and combines an anaerobic process with an aerobic process comprises a primary settler 1, an anaerobic reactor 2, anoxic tanks 3, 4, anaerobic reactor 5, a secondary settler 6 and optionally a hydrolysis tank 7. The system is characterised in that the anoxic tanks (3, 4) are placed in parallel with the said reactors 2 and 5, the outflow from anaerobic reactor 2 is distributed between anoxic tanks 3, 4 and internal recycling is established between aerobic reactor 5 and an anoxic tank 3, together with external recycling between a secondary settler 6 and an anoxic tank 4, and supplementary recycling between an anoxic tank 4 and anaerobic reactor 2.
ES9602751A 1996-12-27 1996-12-27 BIOLOGICAL ELIMINATION SYSTEM OF NITROGEN AND PHOSPHORUS IN A PROCESS THAT USES ACTIVE MUDS. Expired - Fee Related ES2128250B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9602751A ES2128250B1 (en) 1996-12-27 1996-12-27 BIOLOGICAL ELIMINATION SYSTEM OF NITROGEN AND PHOSPHORUS IN A PROCESS THAT USES ACTIVE MUDS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9602751A ES2128250B1 (en) 1996-12-27 1996-12-27 BIOLOGICAL ELIMINATION SYSTEM OF NITROGEN AND PHOSPHORUS IN A PROCESS THAT USES ACTIVE MUDS.

Publications (2)

Publication Number Publication Date
ES2128250A1 true ES2128250A1 (en) 1999-05-01
ES2128250B1 ES2128250B1 (en) 2000-04-01

Family

ID=8297166

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9602751A Expired - Fee Related ES2128250B1 (en) 1996-12-27 1996-12-27 BIOLOGICAL ELIMINATION SYSTEM OF NITROGEN AND PHOSPHORUS IN A PROCESS THAT USES ACTIVE MUDS.

Country Status (1)

Country Link
ES (1) ES2128250B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110776200A (en) * 2019-11-05 2020-02-11 云南龙帜环境工程有限公司 A high-efficient biological denitrogenation system for sewage treatment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008410A1 (en) * 1987-04-21 1988-11-03 Hampton Roads Sanitation District High-rate biological waste water treatment process using activated sludge recycle
US4915840A (en) * 1988-06-07 1990-04-10 Bioprocess Engineering, Inc. Process for sludge reduction in an aerobic sludge generating waste treatment system
EP0458760A1 (en) * 1990-05-18 1991-11-27 FOSFLEX s.r.l. A process and plant for the biological purification of sewage
DE4100685A1 (en) * 1991-01-11 1992-07-16 Sued Chemie Ag METHOD FOR CLEANING WATER CONTAINING PHOSPHATES AND NITROGEN COMPOUNDS
US5480548A (en) * 1993-12-28 1996-01-02 Ch2M Hill, Inc. Wastewater biological phosphorus removal process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008410A1 (en) * 1987-04-21 1988-11-03 Hampton Roads Sanitation District High-rate biological waste water treatment process using activated sludge recycle
US4915840A (en) * 1988-06-07 1990-04-10 Bioprocess Engineering, Inc. Process for sludge reduction in an aerobic sludge generating waste treatment system
EP0458760A1 (en) * 1990-05-18 1991-11-27 FOSFLEX s.r.l. A process and plant for the biological purification of sewage
DE4100685A1 (en) * 1991-01-11 1992-07-16 Sued Chemie Ag METHOD FOR CLEANING WATER CONTAINING PHOSPHATES AND NITROGEN COMPOUNDS
US5480548A (en) * 1993-12-28 1996-01-02 Ch2M Hill, Inc. Wastewater biological phosphorus removal process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110776200A (en) * 2019-11-05 2020-02-11 云南龙帜环境工程有限公司 A high-efficient biological denitrogenation system for sewage treatment

Also Published As

Publication number Publication date
ES2128250B1 (en) 2000-04-01

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Legal Events

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EC2A Search report published

Date of ref document: 19990501

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Effective date: 19990501

FD1A Patent lapsed

Effective date: 20071228