In my doctoral research, I focus on drying technologies for safe nutrient recycling of source-separated human urine. I work with post-urine-diversion operations, where alkaline dehydration can offer the possibility of stabilizing nutrients as well as minimizing the volume of urine that needs to be handled, transported and ultimately, reapplied as fertilizer in agriculture. I work with the design of drying systems for both, decentralized and semi-centralized sanitation systems.
Since sanitation technologies are strongly embedded in wider socio-economic systems, my research interests also include analyzing farmer/consumer perceptions and attitudes to the reuse of fertilizer products from new sanitation systems.
Mass Transfer Group, School of Civil and Chemical Engineering, VIT University, India.
M. Sc. Environmental Sciences, Policy and Management (MESPOM), University of Manchester, Lund University, Central European University, University of the Aegean.
B. Tech. Chemical Process Engineering, VIT University, India.
Indus–MAGIC Scholar, National Chemical Laboratory, Council of Scientific and Industrial Research, Government of India.
Research Fellow, Institute of Chemical Technology, India.
Peer-reviewed Journal Articles:
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. 2017. Continuous urea–nitrogen recycling from human urine: a step towards creating a human excreta based bio–economy. Journal of Cleaner Production. In Press.
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. In Press.
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.
Simha, P. 2016. Technological and Psycho–Sociological Perspectives on Closing the Sanitation Loop. Master of Science Thesis. Central European University, Budapest, Hungary.
A full list of my publications and projects is available on ResearchGate.