Waste Water Treatment Plants
- Hochland WWTP in Sovata, Romania
- Koziegłowy Main WWTP in Poznań
- Warsaw South WWTP
- Leszno WWTP
- Krapkowice WWTP
- Upgrading of the Klimzowiec WWTP and utilisation of the sewage sediment in Chorzów
- Pudliszki WWTP in Rokosowo
- Łęczyca WWTP
- Krotoszyn WWTP
- Chludowo WWTP
- Ostrów Wielkopolski WWTP
- Bierutowo WWTP
- Głogów WWTP