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Environ Sci Pollut Res Int

Title:		"Removal of gas-phase ammonia and hydrogen sulfide using photocatalysis, nonthermal plasma, and combined plasma and photocatalysis at pilot scale"
Author(s):		Maxime G; Amine AA; Abdelkrim B; Dominique W;
Address:		"Laboratoire Sciences Chimiques de Rennes - equipe Chimie et Ingenierie des Procedes, UMR 6226 CNRS, ENSCR, 11 allee de Beaulieu, CS 50837, 35700, Rennes, France"
Journal Title:		Environ Sci Pollut Res Int
Year:		2014
Volume:		20140706
Issue:		22
Page Number:		13127 - 13137
DOI:		10.1007/s11356-014-3244-6
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"This study focuses on the removal of gas-phase ammonia (NH3) and hydrogen sulfide (H2S) in a continuous reactor. Photocatalysis and surface dielectric barrier discharge (SDBD) plasma are studied separately and combined. Though the removal of volatile organic compounds by coupling plasma and photocatalysis has been reported on a number of studies in laboratory scale, this is as far as we know the first time that it is used to remove inorganic malodorous pollutants. While each separate process is able to degrade ammonia and hydrogen sulfide, a synergetic effect appears when they are combined at a pilot scale, leading to removal capacity higher than the sum of each separate process. The removal capacity is higher when the gas circulates at a higher flow rate and when pollutant concentration is higher. The presence of water vapor in the gas is detrimental to the efficiency of the process. Operating conditions also influence the production of nitrogen oxides and ozone"
Keywords:		Air Pollutants/*isolation & purification Ammonia/*isolation & purification/metabolism Catalysis Environmental Restoration and Remediation Humidity Hydrogen Sulfide/*isolation & purification Ozone/analysis Photochemical Processes Pilot Projects Plasma Gase;
Notes:		"MedlineMaxime, Guillerm Amine, Assadi Aymen Abdelkrim, Bouzaza Dominique, Wolbert eng Research Support, Non-U.S. Gov't Germany 2014/07/06 Environ Sci Pollut Res Int. 2014 Nov; 21(22):13127-37. doi: 10.1007/s11356-014-3244-6. Epub 2014 Jul 6"