Influence of the ozonation process on the contents of selected chlorine disinfection by-products precursors | Uticaj procesa ozonizacije na sadržaj prekursora odabranih dezinfekcionih nusprodukata hlora
2011
Molnar, J., Prirodno-matematički fakultet, Novi Sad (Serbia) | Agbaba, J., Prirodno-matematički fakultet, Novi Sad (Serbia) | Dalmacija, B., Prirodno-matematički fakultet, Novi Sad (Serbia) | Rončević, S., Prirodno-matematički fakultet, Novi Sad (Serbia) | Kragulj, M., Prirodno-matematički fakultet, Novi Sad (Serbia) | Rajić, Lj., Prirodno-matematički fakultet, Novi Sad (Serbia) | Watson, M., Prirodno-matematički fakultet, Novi Sad (Serbia) | Leovac, A., Prirodno-matematički fakultet, Novi Sad (Serbia)
This study was performed to investigate the influence of the ozonation process on natural organic matter (NOM) and trihalomethane, haloacetonitrile and chloropicrin precursors in groundwater. The largest reduction in dissolved organic carbon, DOC (up to 25%) and UV 254 values (up to 69%) was achieved using 3 mg O3/mg DOC. Reducing the total organic matter resulted in a reduction of trihalomethanes precursors to 194 micro g/L. On the other hand, when it comes to the precursors of the high priority nitrogenous disinfection by-products, the oxidation of NOM by ozone and the resulting increase in organic matter with a low molecular lead to an increase in the haloacetonitrile precursors compared to the raw water and the formation of chloropicrin precursors.
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