legislation-obligation

Substance Regulatory Obligations

OBL

Biochemical Oxygen Demand (BOD)

EC number: -

CAS number: -

Last updated: 10/10/2020
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ECHA Legislation Regulatory Obligations

Regulatory obligations may exist for this substance under the legislations under ECHA’s remit or for which ECHA has delegated tasks (i.e. REACH, CLP, BPR, PIC, CAD / CMD, WFD, and POPs). Please check the substance Infocard.

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Urban Waste Water Treatment Directive

Urban Waste Water Treatment Directive, Annex I: Discharge requirements

RESTRICTION

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.

Name Concentration Expressed As Method Minimum reduction Qualifier Table Parametri Notes  
Biochemical oxygen demand
25 mg/l
As O2
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 %
1
(BOD5 at 20 °C) without nitrification
1 The parameter can be replaced by another parameter: total organic carbon (TOC) or total oxygen demand (TOD) if a relationship can be established between BOD5 and the substitute parameter.
 Details
Biochemical oxygen demand
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)
1
(BOD5 at 20 °C) without nitrification
1 The parameter can be replaced by another parameter: total organic carbon (TOC) or total oxygen demand (TOD) if a relationship can be established between BOD5 and the substitute parameter.
 Details