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Solar drying of faecal sludge from pit latrines in a bench-scale device
conference contributionposted on 2018-11-13, 10:02 authored by Santiago Septien Stringel, Tenday Mugauri, Anusha Singh, Freddie Inambao
Solar thermal energy for drying proposes could be employed as a cost-effective solution for faecal sludge treatment. In despite of its great potential, this option has not been enough applied, and there is a lack of knowledge in literature to allow for its emergence. The present work aims at providing data and knowledge to the sanitation practitioners in solar drying, through an experimental work with a custom-designed bench-scale apparatus. Depending on the experimental conditions, the moisture content of the sludge could be reduced from 60% to 20% after 5 hours of solar drying, with an average drying rate varying between 0.5 to 0.8 kg/h/m2. The most favourable conditions for drying were during sunny weather conditions and for lower thickness of sample. A crust formation was observed to occur at the top of the sludge and may explain the lower drying rates than expected under certain conditions.
The authors would like to extend thanks to the Water Research Commission for funding this project.
- Architecture, Building and Civil Engineering
- Water, Engineering and Development Centre (WEDC)
Published inTransformation towards sustainable and resilient WASH services: Proceedings of the 41st WEDC International Conference
Pages? - ? (6)
CitationSEPTIEN STRINGEL, S. ... et al., 2018. Solar drying of faecal sludge from pit latrines in a bench-scale device. IN: Shaw, R.J. (ed). Transformation towards sustainable and resilient WASH services: Proceedings of the 41st WEDC International Conference, Nakuru, Kenya, 9-13 July 2018, Paper 3008, 6 pp.
Publisher© WEDC, Loughborough University
- VoR (Version of Record)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
NotesThis is a conference paper.