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Prithvi Simha

Prithvi Simha
My PhD research focuses on the safe recycling & valorisation of nutrients from source-separated human urine. I work with the design, engineering, & implementation of drying technologies that convert urine into a dry, hygienic, and high-quality fertiliser. I also work with user acceptance, perceptions, and attitudes to new sanitation systems and technologies.


Productive On-site Sanitation System : New Value Chain for Urine Based Fertilizer
UDT 2.0 - Urine Dehydration Technology for Sanitation 2.0
MORTTI - Mobile nutrient recovery in field conditions


Erasmus Mundus M.Sc. Environmental Sciences, Policy, & Management (MESPOM): University of ManchesterLund UniversityCentral European University, University of Aegean.

B. Tech. Chemical Process Engineering at VIT University, India.                                        Indus–Magic scholar at National Chemical Laboratory, CSIR India.                                  Summer Research Fellow at Institute of Chemical Technology, India.

Selected publications

Simha, P., Karlsson, C., Viskari, E-L., Malila, R., and Vinnerås, B. (2020) Field testing a pilot-scale system for alkaline dehydration of source-separated human urine: a case study in Finland. Frontiers in Environmental Science, 8, 570637. 

Simha, P., Senecal, J., Gustavsson, D. J., & Vinnerås, B. (2020). Resource recovery from wastewater: a new approach with alkaline dehydration of urine at source. In Current Developments in Biotechnology and Bioengineering (pp. 205-221). Elsevier.

Simha, P., Lalander, C., Nordin, A., & Vinnerås, B., 2020. Alkaline dehydration of source-separated fresh human urine: Preliminary insights into using different dehydration temperature and media. Science of The Total Environment, 733, 139313.

Simha, P., Lalander, C., Ramanathan, A., Vijayalakshmi, C., McConville, J. R., Vinnerås, B., Ganesapillai, M., 2018. What do consumers think about recycling human urine as  fertiliser? Perceptions and attitudes of a university community in South India. Water Research 143, 527-538.

Simha, P., Senecal, J., Nordin, A., Lalander, C., Vinnerås, B., 2018. Alkaline dehydration of anion–exchanged human urine: Volume reduction, nutrient recovery and process optimisationWater Research 142, 325-336.

Senecal, J., Nordin, A., Simha, P., Vinnerås, B., 2018. Hygiene aspect of treating human urine by alkaline dehydrationWater Research, 144, 474-481.

Simha, P., Lalander, C., Vinnerås, B., Ganesapillai, M., 2017. Farmer attitudes and perceptions to the re–use of fertiliser products from resource–oriented sanitation systems–The case of Vellore, South IndiaScience of The Total Environment, 581-582, 885–896.

Simha, P., Zabaniotou, A., Ganesapillai, M., 2018. Continuous urea–nitrogen recycling from human urine: a step towards creating a human excreta based bio–economy. Journal of Cleaner Production, 172, 4152-4161.

Simha, P., Mutiara, Z. Z., Gaganis, P., 2017. Vulnerability assessment of water resources and adaptive management approach for Lesvos Island, GreeceSustainable Water Resources Management, 3(3), 283–295.

Simha, P., Yadav, A., Pinjari, D., Pandit, A. B., 2016. On the behaviour, mechanistic modelling and interaction of biochar and crop fertilizers in aqueous solutionsResource-Efficient Technologies, 2(3), 133-142.

Simha, P., Mathew, M., Ganesapillai, M., 2016. Empirical modeling of drying kinetics and microwave assisted extraction of bioactive compounds from Adathoda vasica and Cymbopogon citratusAlexandria Engineering Journal, 55(1), 141-150.

Pillai, M. G., Simha, P., Gugalia, A., 2014. Recovering urea from human urine by bio-sorption onto microwave activated carbonized coconut shells: equilibrium, kinetics, optimization and field studies. Journal of Environmental Chemical Engineering, 2(1), 46-55.


Steering Committee, Research School Focus on Soil and Water
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Doctoral Student at the Department of Energy and Technology; Environmental Engineering Unit
Postal address:
Inst för energi och teknik, Box 7032
Visiting address: Lennart Hjelms väg 9, Uppsala