Germany

  • Kläranlagen - KA
  • KA Schöningen
  • KA Hilter
  • KA Essen
  • KA Oldenburg
  • KA Elbstadt
  • KA Wildeshausen
  • KA Heiligenstadt
  • KA Holle
  • KA Hemmoor
  • Fa. SNP Icker, Belm-Icker

Europe

  • Denmark
  • France
  • Romania
  • Russia

Worldwide

  • USA
  • China

Further references are available on request.