Registration Dossier

Administrative data

Endpoint:
other distribution data
Type of information:
experimental study
Adequacy of study:
other information
Study period:
2007
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Few data, adequacy not given

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
no guideline required
Type of study:
other: Effluent Volumes of 3 different Currenta Sewage Treatment Plants and Dilution Factors by the River Rhine
Media:
other: water - water

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
No test material used

Results and discussion

Any other information on results incl. tables

Table 1: Effluent volumes of Currenta sewage treatment plants in 2007

 

D 41539

Dormagen

D 51368

Leverkusen

D 47829

Uerdingen

Maximum [m³/d]

78.165

232.734

27.790

Minimum [m³/d]

54.545

82.635

10.020

Mean [m³/d]

68.101

125.214

22.734

Data source: Currenta GmbH Co. OHG

 

 

Table 2: Water volume of the river Rhine and the resultant dilution factors

 

D 41539

Dormagen

D 51368

Leverkusen

D 47829

Uerdingen

10-percentile water volume Rhine at Cologne* [m³/d]

101.088.000

-

Mean effluent volumes sewage treatment plant [m³/d]

68.101

125.214

22.734

Dilution factor

1.484

807

4.447

*Data source: Bundesanstalt für Gewässerkunde (2008), Deutsches

Gewässerkundliches Jahrbuch, electronic release http://dlr.bafg.de:8086/

Applicant's summary and conclusion

Conclusions:
The dilution factors for the effluents of the Currenta sewage treatment plants by the river Rhine are:
D 41539 Dormagen: 1.484
D 51368 Leverkusen: 807
D 47829 Uerdingen: 4.447
Executive summary:

Effluent volumes of three Sewage Treatment Plants, which flow into the River Rhine, were estimated by daily measurements in 2007. The 10-percentile of the water volumes of the Rhine monitored daily from 1998 - 2007 was taken for the calculation of dilution factors.

 

The dilution factors for the effluents of the Currenta sewage treatment plants by the river are:

D 41539 Dormagen: 1.484

D 51368 Leverkusen: 807

D 47829 Uerdingen: 4.447

Due to few and inadequate data, reliability may not be assessed.

Reference: Allmendinger, 2008