Figene Ahmedi (1) Petko Pelivanoski (2) (1) Faculty of Civil Engineering and Architecture, University of Prishtina, Prishtine, Kosovo (2) Faculty of Civil Engineering, University “Sts. Cyril and Methodius”, Skopje, Macedonia figene_ahmedi@yahoo.com   Abstract  The industrial byproducts are usually deposited at landfill sites and are not used further. Whenever there is a shortage of natural resources, […]

Petko Pelivanoski 1, Zivko Veljanoski 1, Goce Taseski 1, Aleksandar Maletik 2 1 University of Ss Cyril and Methodius, Fac. of Civil Engineering; Department of Water Supply, Sewerage, Treatment and Irrigation, Skopje, Macedonia 2 Graduate engineer, technologist  Abstract: The appearance of longer droughts, intensive population growth in the arid parts, as well as continued scarcity […]