EN 12255 explained

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

External links

• European Committee for Standardization

Notes and References

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