ASSESSING THE EFFECTIVENESS OF MORINGA OLEIFERA SEED AS A COAGULANT IN DOMESTIC SEWAGE TREATMENT
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Date
2017-01-20
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Research Journal of Engineering and Environmental Sciences
Abstract
The effectiveness of Moringa oleifera seed as a natural coagulant for
domestic sewage treatment was investigated in this study. A
completely randomized design (CRD) was adopted for the treatment
process. The treatments included the control culture (no-Moringa
seed), 2 g, 4 g, and 6 g of Moringa oleifera. Physical,
bacteriological and chemical properties of domestic sewage were
investigated before and after treatment. The turbidity, water
hardness, suspended solids, dissolved solids, biochemical oxygen
demand (BOD) and chemical oxygen demand (COD) showed
reductions while dissolved oxygen (DO) showed some increase
indicating that some level of treatment was achieved. There was no
significant difference between the pH, BOD and COD obtained for
the 2 g, 4 g and 6 g treatments. The study has revealed that Moringa
oleifera as a natural coagulant shows potential in the treatment of
the domestic sewage.
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Keywords
Moringa oleifera seed, Domestic sewage, Coagulant, Treatments, Completely randomized design