urban-waste-water-treatment

Urban Waste Water Treatment Directive, Annex I: Discharge requirements

This list contains requirements for (1) discharges from urban waste water treatment plants (Annex I, Table 1), and (2) discharges to sensitive areas (Annex I, Table 2), under Directive 91/271/EEC.

Total suspended solids

EC / List no: - CAS no: -
Concentration
35 mg/l
Method
Filtering of a representative sample through a 0,45 μm filter membrane. Drying at 105 °C and weighing

Centrifuging of a representative sample (for at least five mins with mean acceleration of 2800 to 3200 g), drying at 105 °C and weighing

Minimum reduction
90.0 %
Table
1
Notes
2 This requirement is optional.

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