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Showing 1 to 9 of 9 for “"N-nitrosamine"”.
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Total N-nitrosamine Precursor Adsorption with Carbon Nanotubes: Elucidating Controlling Physiochemical Properties and Developing a Size-Resolved Precursor Surrogate
… (THMs), dihaloacetonitriles (DHANs), and N-nitrosamines – during water treatment may also increase. N-nitrosamines may comprise the bulk of the chronic toxicity in treated drinking waters despite forming at low ng/L levels. This research seeks to elucidate physicochemical properties of …
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Biofilm-related Materials as Total N-nitrosamine (TONO) Precursors and Hydroxylamine-based Interferences in TONO and N-nitrosodimethylamine (NDMA) Measurements
… this study, a chemiluminescence-based total N-nitrosamine (TONO) assay was adapted to include a solid-phase extraction (SPE) step to assess the role of biologically derived materials as N-nitrosamine precursors. Methanol was determined to be a suitable solvent for the SPE-TONO assay, with …
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Drinking water disinfection by-products detection, formation and the precursors removal study
… of THMs and HAAs will form. In addition, if N-nitrosamine precursors are present, highly toxic N-nitrosamines may form during water treatment process. In the third part of this dissertation, zeolites and activated carbon were examined for ammonia and N-nitrosamine precursors removal when …
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Modelling, Simulation, and Optimisation of Reverse Osmosis Process with Application in Wastewater Treatment and Food Processing
… of toxic compounds such as chlorophenol, N-nitrosamine, etc. from wastewater. The effect of several operating parameters such as feed pressure, concentration, flow rate and temperature, on the performance of RO process are evaluated. Also, suitability of a number of different RO …
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Modelling, Simulation, and Optimisation of Reverse Osmosis Process with Application in Wastewater Treatment and Food Processing
… of toxic compounds such as chlorophenol, N-nitrosamine, etc. from wastewater. The effect of several operating parameters such as feed pressure, concentration, flow rate and temperature, on the performance of RO process are evaluated. Also, suitability of a number of different RO …
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Occurrence, monitoring and removal of drinking water contaminants by advanced technologies
… are raised as MCA disinfection has been linked N-nitrosamine formation. N-nitrosamines are a group of nitrogenous DBPs (N-DBPs) which are highly carcinogenic in comparison to regulated DBPs (THMs and HAAs, generated by FC disinfection). Also in the forefront of drinking water concerns are other …
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Multivariate Analysis of Disinfection By-products Formation in Drinking Water Distribution Systems
… for reducing one class of chloramination DBP (N-nitrosamine) formation in a lab-scale DWDS under various conditions. Findings drawn from this research will provide guidance for water utilities to design suitable disinfection strategies for improved management of disinfectant decay and DBP …
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Environmental considerations for interactions between agricultural herbicides and nitrogen fertilizers in water
… Another potential result is the formation of nitrosamines. Nitrosamines, which can be carcinogenic, mutagenic, and teratogenic, are a product of xenobiotic reactions and pose an equal or greater risk to the environment and human health than the parent compounds. The combination of nitrosatable …