Screening of technologies for limiting the occurrence of disinfection by-products in urban water systems

Providing safe tap water while limiting the occurrence of disinfection by-products (DBPs) is probably one most challenging aspects environmental chemical engineering within urban cycle. In present work, an investigation about this challenge for real conditions a full-scale drinking treatment plant has been carried out. Five different and well-known technologies (four aeration procedures, coagulation, hydrogen peroxide dosage, ion exchange ultrafiltration) were studied in surface matrix from point view. A preliminary estimation operation costs was also included. The study focused primarily on trihalomethanes (THMs) bromate, DBPs currently regulated by Spanish legislation, under that distributes to 100,000 inhabitants reservoir. Based results, agitation exhibited greatest performance remove THMs directly (86.46 % removal). Ion resin showed best potential inhibit their formation 100 bromide removal. Moreover, dosage outstanding results tests performed at preventing bromate ozonation stage 60 %. This cheapest technology according cost analysis performed, with 0.01 €·m−3. Thus, elimination can be used as reference select optimal working plants.