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WASTEWATER TREATMENT PLANTS - PART 7: BIOLOGICAL FIXED-FILM REACTORS

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2002

Publisher

National Standards Authority of Ireland

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 General
      4.1.1 Biological fixed film processes
      4.1.2 Trickling filters
      4.1.3 Rotating biological contactors
      4.1.4 Submerged bed reactors and biofilters
  4.2 Planning
  4.3 Process
      4.3.1 Design
      4.3.2 Modes of operation
      4.3.3 Selection of support media
      4.3.4 Dimensions
      4.3.5 Flow distribution
      4.3.6 Oxygen supply
      4.3.7 Clarification and solid separation
      4.3.8 Additional considerations
  4.4 Detailed design
      4.4.1 Structures
      4.4.2 Mechanical and electrical equipment
Bibliography

Defines the design principles and performance requirements for secondary treatment by biological fixed-film reactors at wastewater treatment plants for more than 50 PT.

DocumentType	Standard
Pages	18
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
EN 12255-7:2002	Identical
UNI EN 12255-7 : 2002	Identical
BS EN 12255-7:2002	Identical
UNE-EN 12255-7:2003	Identical
DIN EN 12255-7:2002-04	Identical