Abstract:
Water pollution is considered to be a direct or indirect change of its natural composition, as a result of the
human activities. The pollutants cause due to their nature, concentration and their time of action, noxious effects on the
health, create discomfort or deteriorate the various uses of the environment. Having in mind the special problem of the
pollution of waters with ammonium and phosphate ions, the study of the possibilities of their removal represents a special
problem regarding the environmental protection. In this paper we studied the possibilities of ammonium and phosphate
removal from waters through precipitation using the Jar-Test method. As precipitation agent it was used the MgSO4 with a
concentration of 100 mg/L. For the establishment of the optimum conditions of ammonium and phosphate removal from
water we worked at various initial concentrations of ammonium and phosphate ions from water, at various
Mg2+:NH4
+
:PO4
3− molar ratios and at various values of the pH of the reaction mass.
