Effects of UV/H2O2 advanced oxidation on chemical characteristics and chlorine reactivity of surface water natural organic matter

Impact of UV/H2O2 advanced oxidation treatment on molecular weight distribution of NOM and biostability of water

“…This is because most of the reduction in SUVA was due to the loss of aromatic portion of NOM measured as UV 254 absorbing species (Speitel et al, 2000;Thomson et al, 2004;Sarathy and Mohseni, 2009). SUVA is reported to be correlated to the changes in biodegradability of organic matter as well as disinfection by-product (DBP) formation potential (Sarathy and Mohseni, 2010). Decrease in aromaticity (i.e., UV 254 ) is accompanied by reduction in the amount of higher molecular weight NOM that in turn leads to the formation of smaller organic molecules such as aldehydes Mohseni, 2007, 2009), and hydroxy carboxylic acids (Thomson et al, 2004).…”

Impact of coagulation as a pre-treatment for UVC/H 2 O 2 -biological activated carbon treatment of a municipal wastewater reverse osmosis concentrate

“…A C C E P T E D ACCEPTED MANUSCRIPT 4 water and wastewater and is leading the way in commercial applications (Sarathy and Mohseni, 2010). It utilizes the highly oxidizing hydroxyl radical which non-selectively oxidises organic compounds, unlike ozone.…”

The Enhancement of H2O2/UV AOPs for the Removal of Selected Organic Pollutants from Drinking Water with Hydrodynamic Cavitation

“…effects on the consumers and are contributing to the formation of biodegradable organic compounds that can result in microbiological growth in the distribution system, potentially decreasing the water quality even below allowed standards. 1,2,4 The quest of sufficient NOM treatment is therefore almost always present, especially when untreated water contains more than 2 mg L -1 of TOC. Synthetic organic compounds (SOCs) originating from various anthropogenic activities induce reactions in the organisms for which no adequate biological response is available seeing that their presence in the environment is relatively new and no mechanism could be developed to adapt to them so quickly.…”

“…10,11 With the advances in the efficiency of the equipment used, H 2 O 2 /UV AOPs are nowadays considered both technically and economically attractive for full-scale applications worldwide. 1,2,4,6,10 Nevertheless, to enhance the treatment efficiency and to reduce material and energy inputs (reduced costs per unit of treated volume) extensive research is dedicated to finding synergistic effects of combined treatment processes or to optimising and intensifying the performance of already established technologies.…”