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Wastewater treatment plants - Part 1: general construction principles
Edition 2002-04-01

Wastewater treatment plants - Part 3: preliminary treatment
Edition 2024-01-31

Wastewater treatment plants - Part 4: Primary treatment
Edition 2023-03-01

Wastewater treatment plants - Part 5: lagooning processes
Edition 2024-03-20

Wastewater treatment plants - Part 6: Activated sludge process
Edition 2023-07-05

Wastewater treatment plants - Part 7: biological fixed-film reactors
Edition 2002-04-01

Wastewater treatment plants - Part 8: sludge treatment and storage
Edition 2024-05-08

Wastewater treatment plants - Part 9: odour control and ventilation
Edition 2023-11-29

Wastewater treatment plants - Part 10: safety principles
Edition 2023-03-15

Wastewater treatment plants - Part 11: general data required
Edition 2023-02-08

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