Attribution: Please use this identifier to share, cite, or link to this item: http://hdl.handle.net/10625/50373
Title: Efficacy of an appropriate point-of-use water treatment intervention for low-income communities in India utilizing Moringa oleifera, sari-cloth filtration and solar UV disinfection
Authors: Ali, Syed Imran
MacDonald, Morgan
Jincy, J
Sampath, K Arun
Vinothini, G
Keywords: APPROPRIATE TECHNOLOGY
MORINGA OLEIFERA
POINT-OF-USE
SARI-CLOTH FILTRATION
SODIS
WATER TREATMENT
INDIA
PERI-URBAN AREAS
WATER SECURITY
Date: 2011
Citation: Ali, S. I., MacDonald, M., Jincy, J., Sampath, K. A., Vinothini, G., Philip, L. … Aronson, K. (2011). Efficacy of an appropriate point-of-use water treatment intervention for low-income communities in India utilizing Moringa oleifera, sari-cloth filtration and solar UV disinfection. Journal of Water, Sanitation and Hygiene for Development, 1(2), 112-123. doi:10.2166/washdev.2011.043
Abstract: This study investigated the efficacy of a POU water treatment system featuring sari-cloth filtration and/ or Moringa oleifera coagulation as pre-treatments for solar disinfection (SODIS). Surface water from a peri-urban slum in Chennai, India, was treated and analysed for turbidity, organic content via chemical oxygen demand (COD) and microbiological quality via most probable number (MPN) enumeration of total coliforms. Pre-treatment with both moringa coagulation and sari-cloth filtration significantly improved the turbidity of raw water compared to no pre-treatment controls (P ¼ 0.0002). Optimal moringa coagulation did not outperform sari-cloth filtration (P ¼ 0.06), but combining optimal moringa coagulation with sari-cloth filtration significantly outperformed either pre-treatment independently with respect to turbidity (P ¼ 0.016 and P ¼ 0.0001, respectively). The addition of moringa was found to increase COD in treated water, with greater doses of moringa resulting in higher COD levels (P ¼ 0.04). Increased organics may have encouraged the re-growth of coliform bacteria that was observed in those jars receiving moringa coagulant such that, with respect to MPN, those jars which were subject to optimal moringa coagulation did not outperform those undergoing sari-cloth filtration alone (P ¼ 0.41). Sari-cloth filtration is recommended as a pre-treatment for SODIS whereas moringa is not, as further investigation on the relationship between organics and bacterial re-growth is necessary.
ISSN: 2043-9083
URI: http://hdl.handle.net/10625/50373
Project Number: 105721
Project Title: Alternative Water Systems Project (India)
Access: IDRC Only
Copyright: IWA Publishing
Access Restriction: Due to copyright restrictions the full text of this research output is not available in the IDRC Digital Library or by request from the IDRC Library. / Compte tenu des restrictions relatives au droit d`auteur, le texte intégral de cet extrant de recherche n`est pas accessible dans la Bibliothèque numérique du CRDI, et il n`est pas possible d`en faire la demande à la Bibliothèque du CRDI.
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