Moto-3014.pdf (1.32 MB)
Use of chitosan and Moringa oleifera as conditioners for improved dewatering of faecal sludge
conference contribution
posted on 2018-11-08, 16:48 authored by Nuhu Moto, Miriam Esanju, Nienke Andriessen, Richard Kimwaga, Linda StrandeA pilot-scale dewatering research facility was built in Dar es Salaam, Tanzania, and was used to test chitosan and Moringa oleifera as conditioners to improve the dewatering of faecal sludge. Laboratory-scale jar tests were first conducted to determine optimal dosages for the conditioners in faecal sludge samples with varying total solids concentrations. The results for chitosan were 0.5-0.6 mL/gTS, and for Moringa oleifera 5-15mL/gTS. Based on these results, pilot-scale tests were conducted with chitosan, but the use of Moringa was ruled out as it was too resource intensive. Three loading cycles were conducted, and an average of 15.3% reduction in dewatering time was achieved. Based on the laboratory and pilot-scale tests, chitosan is recommended as a conditioner for improved FS dewatering performance. It could be employed at full-scale, but still requires jar tests to determine optimal dosing.
Funding
Funding for this research was provided by the Swiss Development Corporation (SDC).
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Water, Engineering and Development Centre (WEDC)
Published in
Transformation towards sustainable and resilient WASH services: Proceedings of the 41st WEDC International ConferencePages
? - ? (7)Citation
MOTO, N. ... et al, 2018. Use of chitosan and Moringa oleifera as conditioners for improved dewatering of faecal sludge. 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 3014, 7 pp.Publisher
© WEDC, Loughborough UniversityVersion
- VoR (Version of Record)
Publisher statement
This 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/Publication date
2018Notes
This is a conference paper.Language
- en
Location
Nakuru, KenyaAdministrator link
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