Moringa oleifera and ceramic filters for escherichia coli and turbidity removal from drinking water.
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Date
2016Author
Macharia, Jane W.
Wandiga, Shem O.
Njenga, Lydia W.
Madadi, Vincent O.
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
Porous ceramic filters were prepared by incorporating burnout material into the clay and their
efficiency in removal of turbidity and Escherichia coli tested. Moringa oleifera seeds were also tested for their
biocoagulant and phytodisinfectant ability in purifying water. The filters reduced E. coli from 390±10 CFU/ml
to 0.00 - 0.03 CFU/ml corresponding to an efficiency range of 99.1 to 100%. Turbidity reduced from
64.13±0.75 NTU to 0.92-1.77 NTU equivalent to 97.2 - 98.6% reduction. M. oleifera seeds reduced turbidity of
artificially turbid at 100 NTU to 0.83 NTU corresponding to a 99.2 %. With naturally occurring turbid water at
initial turbidity of 22.2 NTU, the residue turbidity was 4.02 NTU indicating lower removal efficacy. 1g/l of the
seeds reduced E. coli load from 260 CFU/ml to 14.5 CFU/ml equivalent to 94.4% removal. De-oiling the seeds
and using the seed cake residue showed similar efficiency in turbidity removal.
Publisher
University of Nairobi
Rights
Attribution-NonCommercial-NoDerivs 3.0 United StatesUsage Rights
http://creativecommons.org/licenses/by-nc-nd/3.0/us/Collections
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