Drinking Water Processing Using UV Rays

Abstract

Pollution by pathogenic bacteria and other parasites can occur in groundwater. To reduce such pollution, disinfection can be used, including the use of ozone, chlorine gas, and ultraviolet light. The purpose of this study is to determine the ability to reduce parameters in groundwater according to drinking water quality standards of the following treatments: coagulation, filtration, absorption, deionization, and disinfection. The method of treating drinking water using UV light was carried out following the procedure where affixing of coagulant aid was the initial treatment and the filtration treatment used polypropylene sediments. Furthermore, treatments removed Fe and Mn using ferrolite, reduced hardness using manganese greensand, reduced cations using anion resins, and reduced anions using cation resins. Coliform bacteria were decreased using UV light. The findings of this study showed the following reductions of the parameters: total dissolved solids 5,319 mg/l, turbidity of 6 NTU scales, color 0.634 units of PtCo, fluoride 0.5 mg/l F, total hardness of 1,573.2 mg/l CaCO3, chloride 2,049.8 mg/l Cl, manganese 1.4793 mg/l Mn, nitrate 7.98 mg/l NO3-N, nitrite 0.703 mg/l NO2-N, zinc 0.02 mg/l Zn, cyanide 0.001 mg/l CN, sulfate 459,58 mg/l SO4, organic substance 3.82 mg/l KMnO4, detergent 0.03 mg/l LAS, fecal (E. Coli) 900 MPN/100 ml, total coliform 5,166 MPN/100 ml.