Research Papers by Carlo Collivignarelli

Effective use of chlorine dioxide as an alternative disinfectant in water treatment may require removal of the by! product chlorite ion (ClO2 ). The goal of this research was to investigate the use of ferrous iron (Fe2+) for the chemical ! reduction of ClO2 from drinking water in order to define the

! Chlorite (ClO2 ) is the dominant degradation by-product coming from chlorine dioxide reactions. Compliance to the maximum concentration of 200 µg/l, established by new Italian regulations for drinking water (D. Lgs. 31/2001), can be accomplished by reduction of chlorine dioxide dosage during water

The chlorination of water containing natural organic matter (NOM) and bromide leads to the formation of total trihalomethanes (TTHMs), for which the Italian new regulation on drinking water (Legislative Decree 31/01) indicates a restrictive maximum concentration level of 30 µg/l. The extent of total