Dr.-Ing. Wernfried Schier

• 1983 - 1992:
  Studied civil engineering at the University of Hanover, diploma thesis at the Institute for Urban Water Management and Waste Technology (Prof. Dr. C.F. Seyfried), topic: "Investigations on the most extensive nutrient elimination at the Itzehoe wastewater treatment plant".

Professional career:

• 1992 - 1996:
  Project engineer at PFI Planungsgemeinschaft, Hanover
• Since 1997:
  Research assistant at the FG SWW of the University of Kassel
  10/2002: Completion of doctorate, dissertation: "An exemplary approach to the integration of new design paths and new purification technologies in the upgrading of wastewater treatment plants"

• Member of the DWA working group KA-6.2 "Activated sludge plants with back-up operation (SBR)", since 2021
• Member and deputy chairman of the DWA technical committee KA-7 "Membrane activated sludge processes" (2003 to 2020)
• Member and spokesperson of the DWA working group KA-7.4 "Development capability and performance of the membrane activation process" (2005 to 2014)
• Member of the DWA working group KA-7.3 "Pre-treatment, sludge treatment, residues in the membrane activated sludge process" (2005 to 2014)
• Member of the doctoral committee of the Department of Civil and Environmental Engineering at the University of Kassel
• Member of the examination board of the Department of Civil and Environmental Engineering at the University of Kassel
• Member of the Association for the Promotion of the IWAU e.V. at the University of Kassel
• Chamber of Engineers of Lower Saxony, since 1995
• German Association for Water, Wastewater and Waste (DWA; previously: ATV-DVWK/ATV), since 1994

Drensla, K.; Hoven, F.; Wiegmann, B.; Schier, W.(2021): Aeration tank volumes and operating parameters on MBR plants - Current design approaches and future potential. 14th Aachen Conference on Water Technology, accompanying book, Aachen

Liese, V.; Schier, W.; Emmert, S.; Felmeden, J. (2021): Evaluation of operating results and experiences on the most extensive phosphorus elimination. Water - Wastewater - Environment, publication series of the Department of Urban Water Management, Volume 43, Kassel University Press, ISBN 978-3-7376-0957-9

Schier, W.; Telgmann, U.; Felmeden, J.: Multi-stage RBF technology for phosphorus, heavy metal and trace substance elimination from MWWWTP. Proceedings of Aqua Urbanica 2019, Rigi Kaltbad (Switzerland), September 2019

Schier, W.; Telgmann, U.; Felmeden, J.: Intensified Constructed Wetlands for CSO/SSO-treatment to achieve immission-oriented thresholds for phosphorus, micro pollutants and priority substances according to WFD. Proceedings of 8th International Symposium on Wetland Pollutant Dynamics and Control - WETPOL, Aarhus (Denmark), June 2019

Schier, W.; Telgmann, U., Romaker, J.; Kosmützky, A.; Frechen, F.-B.; Felmeden, J. (2018). Elimination of Phosphorus and Micropollutants in multi-stage plant-covered Retention Soil Filter Plants (RSFP) for CSO; Proceedings of 16th IWA International Conference on Wetland Systems for Water Pollution Control, Valencia (Spain), October 2018

Frechen, F.-B.; Schier, W.; Telgmann, U.; Romaker, J.; Päckert, K. (2018). Retention soil filter systems for P and micropollutant removal: why retention soil filters should not be meliorated. Proceedings of the DWA Water Economy Course Q/1 "Drainage concepts/remediation planning", DWA, Hennef

Schier, W. (2015). Membrane technology for wastewater treatment - the new leaflet DWA-M 227. Proceedings of the DWA-Kläranlagentage Kassel, DWA, Hennef

Schier, W.; Frechen, F.-B.; (2014). Pre-treatment of wastewater prior to MBR systems and possibilities of sludge inventory management; Proceedings of European Conference on Fluid-Particle Separation (FPS), Lyon (France), October 2014

Frechen, F.-B.; Schier, W.; Romaker, J.; Ordonez, J.A.; Grigo, M. (2013). The Ultra Low Pressure Ultra-Filtration process (ULPUF) for decentralized water supply in emergency situations - principle and practical experience. 10th Aachen Conference on Water and Membranes, pp. 83-93, ISBN 3-8107-0178-5

Schier, W. (2013). The membrane bioreactor process - performance, costs, development. Proceedings of the DWA Wastewater Treatment Plant Days Bad Soden im Taunus, DWA, Hennef

Zheng, X., Yu, M., Liang, H., Qi, L., Zheng, H., Exler, H., Schier, W., Frechen, F.-B. (2012). Membrane technology for municipal drinking water plants in China: Progress and prospect. Desalination and Water Treatment, Volume 49, Issue 1-3, pp. 281-295, ISSN 1944-3994/1944-3986; doi: 10.1080/19443994.2012.719337

Schier, W.; Drensla, K.; Janot, A.; Exler, H.; Engelhardt, N.; Frechen, F.-B. (2012). Mechanical pre-treatment (MPT) - revitalized by MBR process. Water Science & Technology, (66), pp 2524-2532, IWA Publishing 2012. doi: 10.2166/wst.2012.416

Schier, W.; Frechen, F.-B.; Ohme, M. (2011). Intermediate sieving (IntS) strategy to optimize separate MBR systems. Conference Book of the 6th IWA Specialist Conference on Membrane Technology for Water and Wastewater Treatment, pp 35, Aachen

Schier, W., Dinkel, W.; Frechen, F.-B. (2010). Anaerobic purification process for the treatment of industrial wastewater containing heavy metals and sulphates. TU Bergakademie Freiberg, Wissenschaftliche Mitteilungen der Institut für Geologie, No. 42, ISSN: 1433-1284

Schier, W.; Exler, H.; Ohme, M.; Frechen, F.-B.; Drensla, K.; Janot, A.; Engelhardt, N. (2009). Holistic view of mechanical wastewater pretreatment (MAV) on municipal membrane activated sludge plants. 8th Aachen Conference on Water and Membranes, A11, ISBN: 3-8107-0064-9, Aachen

Frechen, F.-B.; Exler, H.; Romaker, J.; Schier, W. (2009). Long-term behavior of a gravimetrically operated membrane module for water treatment in disaster situations. 8th Aachen Conference on Water and Membranes, W9, ISBN: 3-8107-0064-9, Aachen

Frechen, F.-B.; Schier,W. (2009). Performance and costs of the membrane aeration process. Proceedings of the DWA-WasserWirtschafts-Kurs N/2 Kommunale Abwasserbehandlung, pp. 226-252, ISBN 978-3-941089-96-9, DWA, Hennef

Schier, W.; Frechen, F.-B.; Drensla, K.; Janot, A.; Engelhardt, N.; Exler, H.; Ohme, M. (2009). Holistic view at mechanical pre-treatment on municipal MBR plants. Proceedings of the 5th IWA Specialized Membrane Technology Conference, Beijing, September 2009

Frechen, F.-B.; Schier, W. (2009). Membrane filtration in wastewater treatment. Wiener Mitteilungen "Wasser, Abwasser, Gewässer", Vol. 212 "Neue Herausforderungen an die Wassergütewirtschaft", pp. 239 to 264, Vienna University of Technology, Institute of Water Quality, Resource Management and Waste Management. ISSN 0279-5349, ISBN 978-3-85234-104-0

Schier, W.; Frechen, F.-B.; Fischer, St. (2009). Efficiency of mechanical pre-tratment on European MBR plants. Desalination 236 (2009) 85-93, doi:10.1016/j.desal.0000.00.000

Schier, W.; Frechen, F.-B. (2008). Efficiency of mechanical pre-tratment (MPT) on European MBR plants; IWA Conference "Design and operation of membrane plants for water, wastewater and industrial water", Amsterdam, October 2008

Frechen, F.-B.; Schier, W.; Linden, C. (2008): Mechanical wastewater pretreatment on municipal membrane activated sludge plants. KA Korrespondenz Abwasser, Abfall 2008 (55), No. 1, pp. 39-44. ISSN 1616-430X

Schier, W.; Frechen, F.-B.; Fischer, St. (2007). Investigations on the performance of screens on European membrane activated sludge plants. Membrantechnik in der Wasseraufbereitung und Abwasserbehandlung, 7th Aachener Tagung Wasser und Membranen. pp. A24-1 to A24-13, ISBN 3-86130-888-6, October 2007

Schier, W. et al. (DWA Working Group KA-7.4) (2007). Upgrading and Retrofitting of Wastewater Treatment Plants by Means of Membrane Bioreactor (MBR) Technology. 4th International Water Association Conference on Membranes for Water and Wastewater Treatment, Harrogate (Great Britain), May 2007

Frechen, F.-B.; Schier, W.; Linden, C. (2007). Pre-Treatment of Municipal MBR Applications. 4th International Water Association Conference on Membranes for Water and Wastewater Treatment, Harrogate (Great Britain), May 2007

Frechen, F.-B.; Schier, W.; Wett, M. (2006). Pre-Treatment at Municipal MBR Applications in Germany - Current Status and Treatment Efficiency. Water Practice & Technology-WPT, 2006, Vol 1 No 3. doi: 10.2166/WPT.2006057

Frechen, F.-B.; Schier, W.; Felmeden, J. (2006). The Plant-Covered Retention Soil Filter (RSF): The Mechanical and Biological Combined Sewer Overflow (CSO) Treatment Plant. Engineering in Life Sciences, Wiley-VCH, Vol. 6 - No. 1, pp 74-79, ISSN 1618-0240

Schier, W.; Frechen, F.-B. (2006). Mechanical wastewater pretreatment in municipal membrane activated sludge plants; membrane technology in wastewater management. Excerpts from the presentations of the Membrane Days from June 21 to 23, 2005, Osnabrück. PP. 78-95. ISBN10: 3-939057-09-6, ISBN13: 978-3-939057-09-3

Wett, M.; Frechen, F.-B.; Schier, W. (2005). Analysis of the membrane fouling of municipal membrane activated sludge plants. Membrantechnik in der Wasseraufbereitung und Abwasserbehandlung: Perspektiven, Neuentwicklungen und Betriebserfahrungen im In- und Ausland. 6th Aachener Tagung Siedlungswasserwirtschaft und Verfahrenstechnik (6th ATSV), pp. A24-1 to A24-21. ISBN 3-86130-775-8, October 2005

Schier, W. (2005). Wastewater pretreatment in the membrane activated sludge process. 10th Kasseler Siedlungswasserwirtschaftliches Symposium - Forschung für die Praxis. Publication series "Water - Wastewater - Environment" of the Department of Urban Water Management, Volume 27; Kassel University Press, ISBN 3-89958-161-X

Frechen, F.-B.; Schier, W.; Felmeden, J. (2005). Plant-covered retention soil filter (RSF) Fulda Fellenweg for advanced CSO treatment - a ten year field report. 10th International Conference on Urban Drainage, Abstract collection, 2005. ISBN 8789220-80-3, Copenhagen (Denmark), August 2005

Frechen, F.-B.; W. Schier, M. Wett; A. Waldhoff (2005). The "unconventional" low MLSS Membrane Technology. Documentation of the 13th European Water, Wastewater and Solid Waste Symposium in April 2005 in Munich, pp. 55 to 78, ISBN 3-937758-58-5 DWA, Hennef,

Frechen, F.-B.; Schier, W.; Felmeden, J. (2004). Retention soil filters - Functionality, construction and operating experience. Niederschlagswasserbehandlung - Anforderungen an Planung, Bau und Betrieb", Schriftenreihe Siedlungswasserwirtschaft Bochum 2004, Vol. 47, p. 153. ISSN 0178-0980

Frechen, F.-B.; Schier, W. (2004). Membrane filtration for wastewater treatment in Hesse: Umweltallianz Hessen - companies and authorities in dialog. KA Korrespondenz Abwasser, Abfall 2004 (51) No. 4, pp. 358-359. ISSN 1616-430X

Schier, W. (2003). An exemplary approach to the integration of design paths and new purification technologies in the upgrading of wastewater treatment plants
Wasser - Abwasser - Abfall. Publication series of the Departments of Urban Water Management and Waste Management at the University of Kassel, Volume 22, Kassel 2003. approved dissertation. . ISBN 3-89958-039-7 / ISSN 0930-5459

Frechen, F.-B.; Schier, W.; Wett, M. (2003). Upgrading of municipal wastewater treatment plants through the use of membrane filtration. Membrantechnik in der Wasseraufbereitung und Abwasserbehandlung - Perspektiven, Neuentwicklungen und Betriebserfahrungen im In- und Ausland, 5th Aachener Tagung Siedlungswasserwirtschaft und Verfahrenstechnik, ISBN 3-921955-28-9, Aachen 2003

Summer term

• Urban Drainage
• Energy from wastewater systems

Winter term

• Industrial Wastewater Treatment
• Resource oriented water infrastructure systems
• Water supply