Survey on number and size distribution of treatment wetlands in Austria

  • Langergraber
  • Langergraber's Avatar
    Topic Author
  • Long-term forum user
  • Posts: 33
  • Karma: 3
  • Likes received: 10

Survey on number and size distribution of treatment wetlands in Austria

We did a survey on number and size distribution of treatment wetlands in Austria.

Key facts:
- In Austria, 1,840 wastewater treatment plants (WWTPs) with design size >50 population equivalent (PE) serve about 95% of the population (out of those WWTPs 1,300 WWTPs have design size 51–500 PE)
- The remaining 5% of the population are served with WWTPs with design size <50 PE or have a cesspit.
- In Austria there are 27,400 WWTPs with design size <50 PE, respectively.
- The total number of treatment wetlands implemented in Austria is 5,450. Due to legal requirements (nitrification), only vertical flow wetlands are implemented in Austria.
- From the 5,450 treatment wetlands, about 100 are of design size larger than 50 PE and about 2,800 treatment wetlands have a design size of 5–10 PE.
- The peak of wetland implementation was in the years 2007–2011 with 2,200 implemented systems in 5 years.

Reference: Langergraber, G., Weissenbacher, N. (2017): Survey on number and size distribution of treatment wetlands in Austria. Water Sci Technol 75(10), 2309-2315, doi: 10.2166/wst.2017.112.
Link to the abstract: wst.iwaponline.com/content/75/10/2309

Dr Guenter Langergraber
Senior Scientist
Institute of Sanitary Engineering
BOKU University
Vienna, Austria
You need to login to reply
Share this thread:
Time to create page: 0.340 seconds