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Photolytic and Photocatalytic Diminution and Preliminary Genotoxicity Studies of 2-Chloropyridine
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David R. Stapleton
Published/Copyright:
November 30, 2016
Abstract
The destruction of 2-chloropyridine (2-CPY) was studied by means of ultraviolet irradiation at 254 nm. Photolytic and photocatalytic experiments were conducted on 2-CPY aqueous solutions in a batch reactor with internal recycle in laminar flow and under agitation at 323 K at solution ambient pH and at controlled pH conditions, with use and in the absence of radical scavenger. Solution volume was in the range of 0.25-0.55 L and initial substrate concentrations were in the range of 2.6-4.45 mmol L-1 and, where applicable, using 1g L-1 TiO2 (P-25), suspended in the liquid. A global kinetic model for the combined photolytic/photocatalytic diminution of 2-CPY was developed and a preliminary model for the photolytic diminution of 2-CPY as a function of 2-CPY quantity in the water. Preliminary genotoxicity tests indicated mutagenic effects.
Received: 2008-3-17
Revised: 2008-5-26
Accepted: 2008-5-28
Published Online: 2016-11-30
Published in Print: 2008-8-1
© 2016 by Walter de Gruyter Berlin/Boston
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