1. Department of Civil Engineering; Democritus University of Thrace; Xanthi Greece
2. RietLand bvba; Van Aertselaerstraat 70 Minderhout Belgium
3. Department of Environmental and Natural Resources Management; University of Patras; Agrinio Greece
4. Department of Chemical Engineering; University of Patras; Patras Greece
5. Institute of Chemical Engineering and High Temperature Chemical Processes (FORTH/ICE-HT); Platani Patras Greece
6. Bauer Resources GmbH; BAUER-Strasse 1; Schrobenhausen Germany
7. Department of Engineering; German University of Technology in Oman; Athaibah Sultanate of Oman
8. Bauer Nimr LLC; Muscat Oman