Prithvi Simha

Prithvi Simha
My research focuses on the safe recycling and valorisation of resources present in wastewater. Currently, I am developing a technology - alkaline urine dehydration - that converts human urine into a dry, hygienic, and high-quality solid fertiliser. If implemented globally, it could recycle 31 Tg of Nitrogen and 2.8 Tg of Phosphorus annually. My research has a socio-technical systems perspective and I like to perform studies that help identify drivers and barriers to new sanitation practices and behaviours.


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 Manchester, Lund University, Central 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.

Publikationer i urval

Simha, P., Vinnerås, B., Senecal J. (2020) We found a way to turn urine into solid fertiliser – it could make farming more sustainable. The Conversation UK. 

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., 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 optimisation. Water Research 142, 325-336.

Senecal, J., Nordin, A., Simha, P., Vinnerås, B., 2018. Hygiene aspect of treating human urine by alkaline dehydration. Water 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 India. Science 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, Greece. Sustainable 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 solutions. Resource-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 citratus. Alexandria 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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