Dr. Roy Posmanik

Current employer: Institute of Soil, Water, and Environmental Sciences, Agricultural Research Organization (ARO), Neve Ya’ar Research Center, Israel

Contact Information

Academic Background

Ph.D. Environmental Science, Ben-Gurion University of the Negev, Israel, 2013
M.Sc. Water Resource Management, Ben-Gurion University of the Negev, Israel, 2009
B.Sc. Life Sciences, Tel-Aviv University, Israel, 2006
Former Postdoctoral Research Associate


Integrating Anaerobic and Hydrothermal Treatment of Dairy and Food Biowastes: A Sustainable Systems Approach for Biofuel and Animal Feed Production and Nutrient Recovery. Click Here


  1. Posmanik, R., Bar-Sinay, B., Golan, R., Nejidat, A., Gross, A. (2011). Reuse of stabilized fowl manure as soil amendment and its implication on organic agriculture nutrition management. Water, Air, & Soil Pollution, 216, 537-545.
  2. Gross, A., Guy, O., Posmanik, R., Fine, P., Nejidat, A. (2012). A novel method for the combined biowaste stabilization and production of nitrate-rich liquid fertilizer for use in organic horticulture. Water, Air, & Soil Pollution, 223, 1205-1214.
  3. Posmanik, R., Bar-Sinay, B., Nejidat, A., Gross, A. (2013). Integrated biological treatment of fowl manure for nitrogen recovery and reuse. Journal of Environmental Management, 117, 172-179.
  4. Posmanik, R., Gross, A., Nejidat, A. (2014). Effect of high ammonia loads emitted from poultry manure digestion on nitrification activity and nitrifiers community structure in a compost biofilter. Ecological Engineering, 62, 140-147.
  5. Kidron, J.G., Posmanik, R., Brunner, T., Nejidat A. (2015). Spatial abundance of microbial nitrogen-transforming genes and inorganic nitrogen in biocrusts along a transect of an arid sand dune in the Negev Desert. Soil Biology and Biochemistry, 83, 150-159.
  6. Mau, V., Quance, J., Posmanik, R., Gross A. (2016). Phases’ characteristics of poultry litter hydrothermal carbonization under a range of process parameters. Bioresource Technology, 219, 632-642.
  7. Posmanik, R., Cantero, D.A., Malkani, A., Sills D.L., Tester, J.W. (2017). Biomass conversion to bio-oil using sub-critical water: study of model compounds for food processing waste. Accepted for publiation in Journal of Supercritical Fluids, 119, 26-35.
  8. Gerber Van Doren, L.*, Posmanik, R.*, Tester, J.W., Sills, D.L. (2017). Prospects for heat recovery during biological and hydrothermal processing of biomass. Bioresource Technology 225, 67–74.
  9. Posmanik R., Labatut R.A., Kim A.H., Usack J.G., Tester J.W., Angenent L. T. (2017). Coupling hydrothermal liquefaction and anaerobic digestion for energy valorization from model biomass feedstocks. Bioresource Technology, 223, 134-143.
  10. Posmanik, R., Nejidat, A., Dahan, O., Gross, A. (2017). Seasonal and soil-type dependent emissions of nitrous oxide from irrigated desert soils amended with digested poultry manures. Science of the Total Environment, 593–594, 91–98.

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