Using of Green Oxidant for Treatment of Drinking Water Emerging Micro-pollutant

Abstract

In recent years, because of the advanced analytical instrumentation and new analytical techniques, scientists have been able to detect very low concentrations of many chemicals in natural and drinking waters. These low levels of emerging micropollutants in raw waters and drinking water may not cause the immediate lethal effect to humans but may promote disastrous impacts on human health in a long term. While the risk that low concentrations of emerging contaminants pose to humans and the environment requires further investigation, it is important to identify the concentrations of these compounds in water streams and drinking water thereby, an effective technique could be developed to treat these contaminants. An investigation of the emerging micropollutants was done along the Rosetta branch, the founded results demonstrated an adverse effect of 5 drains along the branch those drains reserve untreated wastewater from unserved villages located in the domain of the branch watershed. 18 sampling points were investigated by the means of LC- MS solid phase extraction method, 15 pharmaceuticals were traced along the sampling points. Naproxen, Chlortetracycline, Doxytetracyclin hyclate, Pencilin and Oxacillin record the highest concentrations up to 21.189, 20.955, 20.89, 20.09 and 20.029 µg/l, respectively, while Oxytetracycline, Tetracyclin, and Ofloxacin were not detected, the study reveals that ferrate proved itself as a green coagulant alternative for the conventional treatment. Ferrate has accomplished the required treatment of surface water of Koshla WTP. Using ferrate in surface water treatment accomplish almost 100% removal for 14 pharmaceuticals, however, ferrate failed to remove erythromycin by significant efficiency.