Physico-Bacteriological Parameters of the Pond Water Treated with Powdered Moringa oleifera Almonds Dried at Different Temperatures for the Purpose of Drip Irrigation

Abstract

Surface waters are generally turbid because they contain suspended matter, organic matter, chemical and physical or even biological elements that make these waters unfit for drip irrigation. The almond powder of Moringa oleifera that was used in the study was dried in an oven for one month at temperatures of 25, 40 and 50°C and used to treat the water of Kongou Gorou Zarmagandey pond so it is suitable for localized irrigation. The purpose of this study was to evaluate the physico-bacteriological quality of the waters of this pond. The parameters studied are Escherichia. coli, faecal Streptococci, total germs and sulphito-reducers, organic matter, total residues and the color of treated water. After treatment of water with 100 mg/Lp Moringa oleifera seed powders dried at the respective temperatures of 25, 40 and 50°C, the supernatants were removed and analyzed. The results of this analysis show an increase in organic matter of 52.59, 55.84 and 57.14%; a slight reduction in total residues of 0.7%, 4.3% and 2.5% at the respective temperatures of 50, 40 and 25°C; an abatement of Escherichia. Coli is total (100% for all temperatures). For Streptococci, a reduction of 99.24% was observed for the dose at 25°C and 98.48% for those at 40 and 50°C. For Sulfo-reducing agents, the efficacy of the treatments is therefore total, 100% for doses of 100 mg. 1 to 25 and 40°C and about 99.99% for that at 50°C. Finally, in terms of color, there was a drop of 97.62%; 97.858% and 98.167% at the respective temperatures of 50°C, 25°C and 40°C. The analysis of the water in the study area shows that the latter is in line with the FAO guidelines on the physico-bacteriological aspects of irrigation water in general and that of drip irrigation in particular.