W. H. Hamza, A. A. Osman, F. A. Elsheikh
Abstract: The high cost of treated water makes most people in the rural communities to resort to readily available water sources which are normally of low quality exposing them to waterborne diseases. This work was carried out at Wad Medani Waterworks to compare the efficiency of Moringa oleifera seed and PAC as coagulants. Four samples (raw water, water treated with Moringa oleifera seed powder, powder of Moringa oleifera seed extracted by hexane, and water treated with PAC) were subjected to physical and chemical analysis. The comparison was drawn between the Moringa seeds coagulants efficiently to purify water. This was also compared to efficiently of PAC using the Jar test method. The Cake of Moringa seeds extracted by hexane, from which 50ppm reduced the turbidity from (1650NTU-6.36NTU) was found to be better than the Moringa whole seeds of which (50ppm) reduced the same water turbidity to12.8ppm. and unlike (PAC), does not significantly affect the pH and conductivity of the water after the treatment. The concentration of chloride in water increased if purification was by PAC, but when using Moringa seeds the concentration of chloride did not change. So, as a coagulant, Moringa oleifera seed may be a potentially valuable substitute to (PAC). Application of this low-cost Moringa oleifera seeds is recommended for eco-friendly, nontoxic, simplified water treatment where rural and peri-urban people living in extreme poverty.
Keywords: Moringa Oleifera, Water Treatment, Seed Extract, Electric Conductivity and Total Dissolved Solids