This work investigates the effects of ultraviolet (UV)/H2O2 advanced oxidation on the content and characteristics of natural organic matter (NOM) originating from two different groundwaters (3.03–9.69 mg/L total organic carbon (TOC), 2.71–4.31 Lmg−1m−1 specific ultraviolet absorbance (SUVA)). Application of UV irradiation resulted in a minor reduction in the total content of NOM. Using UV/H2O2 advanced oxidation led to a significant reduction of the aromatic character of NOM (SUVA was reduced by up to 80%) and an increase in the hydrophilic character of the residual NOM, with the optimal UV/H2O2 treatment conditions depending on the water type. In addition, fluctuations in trihalomethane formation potential (THMFP) were observed depending on the UV/H2O2 process conditions, with a maximal reduction of about 40% achieved for both waters.
The effects of ultraviolet/H2O2 advanced oxidation on the content and characteristics of groundwater natural organic matter
J. Molnar, J. Agbaba, A. Tubić, M. Watson, M. Kragulj, S. Rončević, B. Dalmacija; The effects of ultraviolet/H2O2 advanced oxidation on the content and characteristics of groundwater natural organic matter. Water Science and Technology: Water Supply 1 February 2015; 15 (1): 34–41. doi: https://doi.org/10.2166/ws.2014.081
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