Dr. habil. Judy Libra
Department: System Process Engineering
Research program
Research areas
Environmental process engineering
Topics
· Hydrothermal carbonization of biomass residuals
· Chemical and biological treatment of water
· Material and environmental management
Water demand for food production- linking agricultural practices and global change
Projects
- BaumGesundheit – Rette einen Baum in Sanssouci Der zum Teil unersetzliche Baumbestand in den historischen Gärten und Parks in Brandenburg leidet unter den Folgen des Klimawandels. Die Gründe dafür sind vielfältig: Lange Trockenzeiten mit Hitzerekorde…
- FEET – Hydrothermal carbonization as a sustainable solution for faecal waste treatment in less developed communities (FEET - From Excreta to Energy, Transformation) Trotz der weltweiten Bemühungen um eine angemessene Abwasserentsorgung für die Bewohn…
- CoffeeChar – Valorization of by-products from wet coffee processing: Waste to carbon-rich material using hydrothermal carbonization to improve the sustainability of the coffee value chain in Vietnam Vietnams nationale Strategie zur Verbesserung der W…
- IWRM – Verbundprojekt Isfahan: Integriertes Wasserressourcenmanagement im Einzugsgebiet des Zayandeh Rud, Teilprojekt 3 Das übergeordnete Ziel ist die Weiternetwicklung des Water Management Tools (WMT) zu einem Entscheidungshilfesystem (DSS), die dau…
- GlobalFarmWater – Linking increases in water use efficiency for food production at the farm scale to global projections. Die Landwirtschaft verwendet den größten Anteil der erneuerbaren Wasserressourcen zur Ernährung einer noch immer wachsenden Weltb…
Publications
- Marzban, N.; Libra, J.; Ro, K.; Moloeznik Paniagua, D.; Rotter, V.; Sturm, B.; Filonenko, S. (2024): Hydrochar stability: understanding the role of moisture, time and temperature in its physiochemical changes. Biochar. (38): p. 1-17. Online: https://doi.org/10.1007/s42773-024-00329-y
- Marzban, N.; Libra, J.; Rotter, V.; Herrmann, C.; Ro, K.; Filonenko, S.; Hoffmann, T.; Antonietti, M. (2024): Maximizing the value of liquid products and minimizing carbon loss in hydrothermal processing of biomass: an evolution from carbonization to humification. Biochar. (44): p. 1-17. Online: https://doi.org/10.1007/s42773-024-00334-1
- Heinrich, T.; Kaetzl, K.; Libra, J.; Hoffmann, T. (2023): Influence of Thermochemical Conversion Technologies on Biochar Characteristics from Extensive Grassland for Safe Soil Application. Energies. (4): p. 1896. Online: https://doi.org/10.3390/en16041896
- Farru, G.; Libra, J.; Ro, K.; Cannas, C.; Cara, C.; Muntoni, A.; Piredda, M.; Cappai, G. (2023): Valorization of Face Masks Produced during COVID-19 Pandemic through Hydrothermal Carbonization (HTC): A Preliminary Study. Sustainability. (12): p. 9382. Online: https://doi.org/10.3390/su15129382
- Marzban, N.; Libra, J.; Rotter, V.; Ro, K.; Moloeznik Paniagua, D.; Filonenko, S. (2023): Changes in Selected Organic and Inorganic Compounds in the Hydrothermal Carbonization Process Liquid While in Storage. ACS Omega. (4): p. 4234-4243. Online: https://doi.org/10.1021/acsomega.2c07419
- Moloeznik Paniagua, D.; Libra, J.; Rotter, V.; Ro, K.; Fischer, M.; Linden, J. (2023): Enhancing Fuel Properties of Napier Grass via Carbonization: A Comparison of Vapothermal and Hydrothermal Carbonization Treatments. Agronomy. (12): p. 2881. Online: https://doi.org/10.3390/agronomy13122881
- Dang, H.; Farru, G.; Glaser, C.; Fischer, M.; Libra, J. (2023): Enhancing the Fuel Properties of Spent Coffee Grounds through Hydrothermal Carbonization: Output Prediction and Post-Treatment Approaches. Sustainability. (1): p. 338. Online: https://doi.org/10.3390/su16010338
- Kohzadi, S.; Marzban, N.; Libra, J.; Bunschuh, M.; Afshin, M. (2022): Removal of RhB from Water by Fe-modified Hydrochar and Biochar - An Experimental Evaluation supported by Genetic Programming. Journal of Molecular Liquids. (1 January 2023): p. 120971. Online: https://doi.org/10.1016/j.molliq.2022.120971
- Farru, G.; Dang, H.; Schultze, M.; Kern, J.; Cappai, G.; Libra, J. (2022): Benefits and Limitations of Using Hydrochars from Organic Residues as Replacement for Peat on Growing Media. Horticulturae. (4): p. 325. Online: https://doi.org/10.3390/horticulturae8040325
- Alvarez-Murillo, A.; Libra, J.; Ro, K. (2022): Theoretical framework for estimating design reactor pressure for water-based hydrothermal carbonization (HTC) systems. Thermal Science and Engineering Progress. (1 May 2022): p. 101241. Online: https://doi.org/10.1016/j.tsep.2022.101241
Weitere Veröffentlichungen
Selected Scientific Journals
Leu S., Libra J.A., Stenstrom M.K. (2010) Monitoring off-gas O2/CO2 to predict nitrification performance in activated sludge processes. Water Research 44(11): 3434-3444
Schuchardt A., Libra J.A., Sahlmann C., Wiesmann U., Gnirss R. (2007) Evaluation of the oxygen transfer efficiency under process conditions using the dynamic off-gas method. Environmental Technology, 28:479-489
Libra J.A. (2007) Environmental Process Engineering: Building Capacity for Sustainability. Journal of Professional Issues in Engineering Education & Practice, 133 (4) 308-319
Mohey El-Dein A., Libra J.A., Wiesmann U. (2006) Cost analysis for the degradation of highly concentrated textile dye wastewater with chemical oxidation H2O2/UV and biological treatment. J Chem Technol Biotechnol 81:1239–1245
Libra J.A., Borchert M., Banit S. (2003) Competition strategies for the decolorization of a textile reactive dye with the white rot fungi Trametes versicolor under nonsterile conditions. Biotechnology and Bioengineering 82(6) 736-744
Libra J.A., Sosath F. (2003) Comparison of biological and chemical process combinations for the treatment of textile dyehouse wastewater. J Chemical Technology and Biotechnology 78 1149-1156
Books
Gottschalk C., Libra J.A., Saupe A. (2010) Ozonation of Water and Waste Water -A Practical Guide to Understanding Ozone and its Application. 2nd Edition, Wiley-VCH, Weinheim (2004 Translation of 1st Edition in Chinese, China Architecture & Building Press)
Kaiser K., Libra J., Merz B., Bens O., Hüttl R.F. (Hrsg.), 2010. Aktuelle Probleme im Wasserhaushalt von Nordostdeutschland: Trends, Ursachen, Lösungen. Scientific Technical Report STR10/10, 239 S. Deutsches GeoForschungsZentrum, Potsdam.
Frobel M., Libra J. (1997) Das Checklistensystem zur EG-Öko-Audit-Verordnung: eine Arbeitshilfe mit Erläuterungen und Praxisbeispielen. Campus Verlag, Frankfurt/Main 1997