urban-waste-water-treatment

Urban Waste Water Treatment Directive, Annex I: Discharge requirements

EU. Urban Waste Water Treatment: Annex I, Tables 1 & 2, Directive 91/271/EEC, last amended by Directive 2013/64/EU, 28 December 2013

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.

Last updated 24 Απριλίου 2023. Database contains 10 unique substances/entries.
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25 mg/l
Homogenized, unfiltered, undecanted sample. Determination of dissolved oxygen before and after five-day incubation at 20 °C ± 1 °C, in complete darkness. Addition of a nitrification inhibitor
90 %
70 %
Details
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Homogenized, unfiltered, undecanted sample. Determination of dissolved oxygen before and after five-day incubation at 20 °C ± 1 °C, in complete darkness. Addition of a nitrification inhibitor
40 %
under Article 4 (2)
Details
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125 mg/l
Homogenized, unfiltered, undecanted sample Potassium dichromate
75 %
Details
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15 mg/l
Molecular absorption spectrophotometry
70 %
80 %
10000 - 100000 p.e.
Details
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10 mg/l
Molecular absorption spectrophotometry
70 %
80 %
more than 100000 p.e.
Details
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2 mg/l
Molecular absorption spectrophotometry
80 %
10000 - 100000 p.e.
Details
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1 mg/l
Molecular absorption spectrophotometry
80 %
more than 100000 p.e.
Details
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35 mg/l
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
90 %
under Article 4 (2) (more than 10000 p.e.)
Details
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60 mg/l
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
70 %
under Article 4 (2) (2000 -10000 p.e.)
Details
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-
35 mg/l
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
90 %
Details

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