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Radiolytic Reactions of Monochloramine in Aqueous Solutions
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In this paper, the peroxyl radical exists in equilibrium NHClO 2 ¥ / ¥ NHCl + O2 with an estimated equilibrium constant of (3 ( 2) 10 -3 mol L -1.Abstract:
30) L mol -1 cm -1 and 580 ) (56 ( 30) L mol -1 cm -1 . The ¥ NHCl radical undergoes self-decay and can react also with O2 to form a peroxyl radical. It is suggested that the peroxyl radical exists in equilibrium NHClO 2 ¥ / ¥ NHCl + O2 with an estimated equilibrium constant of (3 ( 2) 10 -3 mol L -1 . The reaction of chloramine with the carbonate radical is suggested to form a complex [CO3NH2Cl] ¥- with kf ) 2.5 10 5 L mol -1 s -1 and kr ) 4 10 2 s -1 , and this complex decomposes with k ) 7 10 2 s -1 to form ¥ NHCl.read more
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Reactivity of Reactive Nitrogen Species and Degradation Kinetics of Micropollutants in the UV/Monochloramine Process
TL;DR: In this paper , the degradation of eight organic micropollutants (OMPs), including phenolic (paracetamol, hydroquinone, estradiol, bisphenol A, triclosan) and nonphenolic compounds (ibuprofen, carbamazepine (CBZ), was examined.
Journal ArticleDOI
Theoretical spectroscopy of the HNCl− anion
Vincent Brites,Céline Léonard +1 more
TL;DR: In this article, the stability and the spectroscopy of the HNCl− anion were investigated using explicitly correlated coupled-cluster methodology and core-valence basis set, and the linear-bent path of the neutral and anionic molecules have been computed.
Journal ArticleDOI
Reactivity of Bromine Radical with Dissolved Organic Matter Moieties and Monochloramine: Effect on Bromate Formation during Ozonation.
TL;DR: In this paper , the second-order rate constant (k) of the reactions of selected organic model compounds, a DOM isolate, and monochloramine (NH2Cl) with Br• using γ-radiolysis was determined.
Journal ArticleDOI
Visible light-driven NH2Cl activation by g-C3N4 photocatalysis producing reactive nitrogen species to degrade bisphenol A.
TL;DR: In this paper , the degradation of bisphenol A (BPA) via the NH2Cl activation by graphitic carbon nitride (g-C3N4) photocatalysis using visible light-LEDs at 420 nm was demonstrated.
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Degradation of geosmin and 2-methylisoborneol in UV-based AOPs for photoreactors with reflective inner surfaces: Kinetics and transformation products.
Tan Wee Meng,Xiao Su,Peizhe Sun +2 more
TL;DR: In this paper , the degradation of Geosmin and 2-methylisoborneol (2-MIB) subject to different UV-based advanced oxidation processes (AOPs), including UV/H2O2, UV/S2O82−,UV/chlorine, and UV/chloramine, was conducted in a photoreactor with reflective inner surfaces and compared with that in an environmental water sample.
References
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Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution
TL;DR: In this article, the rate constants for over 3500 reaction are tabulated, including reaction with molecules, ions and other radicals derived from inorganic and organic solutes, and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods.
Journal ArticleDOI
Rate Constants for Reactions of Inorganic Radicals in Aqueous Solution
TL;DR: In this article, rate constants have been compiled for reactions of various inorganic radicals produced by radiolysis or photolysis, as well as by other chemical means in aqueous solutions.
Journal ArticleDOI
A Fundamental Equation of State for Heavy Water
TL;DR: In this paper, a fundamental equation of state has been formulated for heavy water in the form Ψ = Ψ(p,T) in which Ω = Helmholtz free energyp = density T = thermodynamic temperature.
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Thermodynamic properties of individual substances
TL;DR: In this paper, the authors present a list of elements and their compounds: O, HD, T, F, Cl, Br, I, He, Ne, Ar, Kr, Xe, Rn, S, N, P, and their corresponding compounds.
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Chlorine photolysis and subsequent OH radical production during UV treatment of chlorinated water.
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