1. Dept. f. Sanitary Engineering and Water Pollution Control, BOKU – Univ. of Natural Resources and Applied Life Sciences, Vienna, Austria (E-mail: guenter.langergraber@boku.ac.at)
2. EAWAG, Swiss Federal Inst. for Env. Science and Technology, Duebendorf, Switzerland (E-mail: leiv.rieger@eawag.ch; max.maurer@eawag.ch)
3. Inst. of Water Quality and Waste Management, TU Vienna, Austria (E-mail: swinkler@iwag.tuwien.ac.at)
4. ifak, Institute f. Automation and Communication, Barleben, Germany (E-mail: ali@ifak.fhg.de)
5. Inst. of Environmental Engineering, Univ. of Kaiserslautern, Germany (E-mail: wiesej@rhrk.uni-kl.de; simonj@rhrk.uni-kl.de)
6. Dept. of Environmental Engineering, RWTH-Aachen, Germany (E-mail: owerdieck@isa.rwth-aachen.de)
7. Inst. f. Urban Water Management, TU Dresden, Germany (E-mail: Markus.Ahnert@mailbox.tu-dresden.de)