Methods of using polluted stream water as a source of water supply

As Egypt population growing rapidly,the waterresourcesarebecomingoneofitsmostimportantassets. So the thinking of reuse of irrigation drainagewaLer by mixing it with canal water is essent.ialThemixingwaterwithitsphysical,chemicalandbiological pollution can be used as a source for thedlinking purposes.This thesis i e studying the physical,chemicaland biologicalcharacteristics of the mixing waterand proposing the required treatment method.This study describes the proposed treatment plantfor the mixing water which divided intoA)ChemicaltreatmentincludescoagulationandB)Aeration as biologicalorganic matters.treatment to remove thecalirification of the suspended solidsC) Coal filter to remove the tastes and odour.The salinity of water can be treated by reverseosmosis or electro-dialysis