Listar Ciencias básicas por autor "9c656171-9d9e-4eb5-bef3-7573f5f1c9f1"
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Effect of bromide on NDMA formation during chloramination of model precursor compounds and natural waters
Beita Sandí, Wilson; Erdem, Cagri Utku; Karanfil, Tanju (Water Research, 2020)In this work, we investigated the effect of bromide ion (Br−) on NDMA formation using model precursor compounds, wastewater effluents and surface waters. Previous studies showed that Br− reacts with chloramines and forms ... -
Granular Activated Carbon Treatment May Result in Higher Predicted Genotoxicity in the Presence of Bromide
Krasner, Stuart W.; Fen Lee, Tiffany Chih; Westerhoff, Paul; Fischer, Natalia; Hanigan, David; Karanfil, Tanju; Beita Sandí, Wilson; Taylor Edmonds, Liz; Andrews, Robert C. (2016-07-28)Certain unregulated disinfection byproducts (DBPs) are more of a health concern than regulated DBPs. Brominated species are typically more cytotoxic and genotoxic than their chlorinated analogs. The impact of granular ... -
Removal of both N-nitrosodimethylamine and trihalomethanes precursors in a single treatment using ion exchange resins
Beita Sandí, Wilson; Karanfil, Tanju (2017-11-01)Drinking water utilities are relying more than ever on water sources impacted by wastewater effluents. Disinfection/oxidation of these waters during water treatment may lead to the formation of several disinfection ... -
Removal of N-nitrosodimethylamine precursors by cation exchange resin: The effects of pH and calcium
Beita Sandí, Wilson; Selbes, Meric; Kim, Daekyun; Karanfil, Tanju (2018-11-01)Cation exchange resins have proved to be efficient in removing precursors of N-nitrosodimethylamine (NDMA). NDMA is a probable human carcinogen with a calculated lifetime cancer risk of 10−6 at 0.7 ng/L in drinking water. ... -
Removal of N-nitrosodimethylamine precursors with powdered activated carbon adsorption
Beita Sandí, Wilson; Selim Ersan, Mahmut; Uzun, Habibullah; Karanfil, Tanju (2016-01-01)The main objective of this study was to examine the roles of powdered activated carbon (PAC) characteristics (i.e., surface chemistry, pore size distribution, and surface area) in the removal of N-nitrosodimethylamine ... -
The role of chloramine species in NDMA formation
Selbes, Meric; Beita Sandí, Wilson; Kim, Daekyun; Karanfil, Tanju (2018-09)N-nitrosodimethylamine (NDMA), a probable human carcinogen disinfection by-product, has been detected in chloraminated drinking water systems. Understanding its formation over time is important to control NDMA levels in ...