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Browsing Journal Articles by Subject "Alum"

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    COMPARATIVE TREATMENT OF WELL AND STREAM WAGTER FOR DRINKING USING MORINGA OLEIFERA SEEDS, ALUM, SAND FILTER BEDS AND SOLAR RADIATION
    (International Journal of Tropical Medicine and Public Health, 2016-12-16) Ikechukwu Benjamin, MOSES; Babatunde, Awopetu; Odeyemi, Olu
    Objectives The objective of this research work was to compare the coagulating power of Moringa oleifera seeds with that of alum. Raw water samples were collected from various wells and streams in Modakeke area, Ile-Ife, Osun state, Nigeria. Results show that Moringa oleifera seed is a better coagulating agent than alum because it had an average coagulating power of 85.3% while that of alum was 78.3%. The filter bed had 85.7% reduction in microbial load for Moringa oleifera treated water while there was 79.1% reduction in microbial load for alum treated water. Also, the effectiveness of solar disinfection for the Moringa oleifera treated clear filtrate was 98.1% while that of alum treated water was 91.5%. Hence, Moringa oleifera, sand filtration and solar energy are good alternatives for water treatment especially in rural areas that can’t afford sophisticated water treatment plant or chemicals.
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    EFFICACY OF SAND FILTRATION, Moringa oleifera SEED AND ALUM TREATMENT IN REDUCTION OF COLIFORMS AND TOTAL BACTERIA IN STABILIZATION POND EFFLUENT
    (International Journal of Tropical Medicine and Public Health, 2016-01-14) Babatunde A, Awopetu; Ikechuwkwu, Moses; Odeyemi, Olu
    Objectives A slow sand filter was designed and constructed with decreasing sizes of sand layers. Granulations were made out of the seeds of Moringa oleifera. Their turbidity clarification, coliform and total bacteria reduction were tested. Their abilities to reduce the densities of Salmonella typhi, Bacillus cereus, Shigella dysenteriae, Escherichia coli in waste water were also tested. Coliform number reduction was 78% by sand filtration, 78% alum treatment and 98% by M. oleifera ground seed treatment. The sand filter reduced total bacteria population by 4%, alum and M. oleifera treatments by 33% and 84% respectively. There was a 12% reduction in Shigella dysenteriae numbers by the slow sand filter, 57% reduction by alum and 76% reduction Moringa oleifera treatment. Sand filtration reduced Salmonella typhi population by 29%, alum and Moringa oleifera treatments did so by 43% and 71% respectively. Escherichia coli numbers were reduced by 10% by sand filtration, 27% by alum treatment and 56% by M. oleifera treatment. Bacillus cereus population was reduced by 9% by both sand filtration and alum treatment while Moringa oleifera application gave a 32% reduction. M. oleifera ground seed treatment was the best at coliform population reduction (98% reduction) of the three treatments. Sand filtration and alum treatment were found to be equal in coliform reduction rate since they both reduced coliform numbers by 78%. M. oleifera treatment was the most efficient in total bacteria population reduction, with an 84% reduction rate. Slow sand filtration was most effective on S. typhi (29% reduction) of the four organisms teste