EN 12255

EN 12255 - Wastewater treatment plants refers to a set of European standards which specify the general requirements for structures and equipment that relate to wastewater treatment plants for a total population of more than 50 PT (population total). This standard, however, does not include the design of a treatment processes itself.[1] The standards consist of the following parts: [2]

  • EN 12255-1: Part 1: General construction principles
  • EN 12255-2: Part 2: Performance requirements of raw wastewater pumping installations
  • EN 12255-3: Part 3: Preliminary treatment
  • EN 12255-4: Part 4: Primary settlement
  • EN 12255-5: Part 5: Lagooning processes
  • EN 12255-6: Part 6: Activated sludge process
  • EN 12255-7: Part 7: Biological fixed-film reactors
  • EN 12255-8: Part 8: Sludge treatment and storage
  • EN 12255-9: Part 9: Odour control and ventilation
  • EN 12255-10: Part 10: Safety principles
  • EN 12255-11: Part 11: General data required
  • EN 12255-12: Part 12: Control and automation
  • EN 12255-13: Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation
  • EN 12255-14: Part 14: Disinfection
  • EN 12255-15: Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants
  • EN 12255-16: Part 16: Physical (mechanical) filtration

See also
  • List of EN standards
  • European Committee for Standardization

References
  1. SIPE (Standards Information Portal for Europe) EN 12255-1:2002 - Wastewater treatment plants - Part 1: General construction principles Archived 2015-06-18 at the Wayback Machine. Retrieved 17 June 2015.
  2. European Committee for Standardization CEN/TC 165/WG 41 - Small type sewage treatment plants (< 50 inhabitants)
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