Urban wastewater treatment

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012
Only countries with data from all periods included

Download

Metadata

Additional information

Number of countries in brackets. Northern: Iceland, Norway, Sweden, Finland; Western: Austria, Ireland, United Kingdom, Luxembourg, the Netherlands, Germany, Denmark; Southern: Greece, Spain. Primary wastewater treatment removes part of the suspended solids, but no ammonium; secondary (biological) treatment uses aerobic or anaerobic micro-organisms, retains 20 % to 30 % of the nutrients and removes around 75 % ammonium; tertiary treatment includes phosphorus retention and in some cases nitrogen removal.

Related content

Assessments supported

European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100