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CEN
EN 12255-6:2002

EN 12255-6:2002

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Wastewater treatment plants - Part 6: Activated sludge process

Withdrawn date

12-31-2002

Published date

01-16-2002

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 General
  4.2 Planning
  4.3 Flow-splitting structure
  4.4 Biological reactor
      4.4.1 Design
      4.4.2 Operational parameters
      4.4.3 Mixing
      4.4.4 Aeration
      4.4.5 Additional considerations
  4.5 Clarifiers
      4.5.1 General
      4.5.2 Design
  4.6 Return and surplus sludge systems
Annex A (informative) Design-Technical process
        characteristics
Bibliography

This European Standard specifies the performance requirements for treatment of wastewater using the activated sludge process for plants over 50 PT.Differences in wastewater treatment throughout Europe have led to a variety of systems being developed. This standard gives fundamental information about the systems; this standard has not attempted to specify all available systems.Detailed information additional to that contained in this standard may be obtained by referring to the bibliography.

Committee
CEN/TC 165
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn

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I.S. EN 12255-13:2002 WASTEWATER TREATMENT PLANTS - PART 13: CHEMICAL TREATMENT - TREATMENT OF WASTEWATER BY PRECIPITATION/FLOCCULATION
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DIN EN 12255-13:2003-04 WASTEWATER TREATMENT PLANTS - PART 13: CHEMICAL TREATMENT - TREATMENT OF WASTEWATER BY PRECIPITATION/FLOCCULATION
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EN 12255-10:2000 Wastewater treatment plants - Part 10: Safety principles
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DIN 19569-2:2016-02 (Draft) WASTEWATER TREATMENT PLANTS - PRINCIPLES FOR THE DESIGN OF STRUCTURES AND TECHNICAL EQUIPMENT - PART 2: SPECIFIC PRINCIPLES FOR THE EQUIPMENT FOR SEPARATING AND THICKENING OF SOLIDS (WITHOUT FACILITIES FOR SEPARATION AND TREATMENT OF SAND)
ATV A 122 : 1991 PRINCIPLES FOR DIMENSIONING, CONSTRUCTION AND OPERATION OF SMALL SEWAGE TREATMENT PLANTS WITH AEROBIC BIOLOGICAL PURIFICATION STAGE FOR CONNECTION VALUES BETWEEN 50 AND 500 TOTAL NUMBER OF INHABITANTS AND POPULATION EQUIVALENTS
DWA-M 209 : 2007 MEASUREMENT OF THE OXYGEN TRANSFER IN ACTIVATED SLUDGE AERATION TANKS WITH CLEAN WATER AND IN MIXED LIQUOR
ATV A 126 : 1993 PRINCIPLES FOR WASTEWATER TREATMENT IN SEWAGE TREATMENT PLANTS ACCORDING TO THE ACTIVATED SLUDGE PROCESS WITH JOINT SLUDGE STABILISATION WITH CONNECTION VALUES BETWEEN 500 AND 5000 TOTAL NUMBER OF INHABITANTS AND POPULATION EQUIVALENTS
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DIN 19569-3:2002-12 WASTEWATER TREATMENT PLANTS - PRINCIPLES FOR THE DESIGN OF STRUCTURES AND TECHNICAL EQUIPMENT - PART 3: SPECIFIC PRINCIPLES FOR THE EQUIPMENT FOR AEROBICAL BIOLOGICAL WASTEWATER TREATMENT
PREN 12255-12 : DRAFT 2001 WASTEWATER TREATMENT PLANTS - PART 12: CONTROL AND AUTOMATION
DIN 19558:2002-12 WASTEWATER TREATMENT PLANTS - OUTLET INSTALLATIONS, WEIR AND SCUM BAFFLE, SUBMERGED EFFLUENT PIPES IN TANKS - CONSTRUCTION PRINCIPLES, MAIN DIMENSIONS, LAYOUT

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