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A comparative view of radiation, photo and photocatalytically induced oxidation of water pollutants

Abstract

Water resources are presently overloaded with biologically resistant (refractory) pollutants. Several oxidation methods have been developed for their degradation, the most efficient of which is irradiation treatment, particularly that based on e-beam processing in the presence of O{sub 2}/O{sub 3}. The next-best method is photoinduced pollutant oxidation with VUV- and/or UV-light, using H{sub 2}O{sub 2} or H{sub 2}O{sub 2}/O{sub 3} as an additional source of OH radicals. The photocatalytic method, using e.g. TiO{sub 2} as a catalyst in combination with oxidation agents such as H{sub 2}O{sub 2} or H{sub 2}O{sub 2}/O{sub 3}, is also recommended. The suitability of these three methods is illustrated by examples and they are briefly discussed and compared on the basis of the energy consumption and efficiency. Other methods, such as ozone treatment, the photo-Fenton process, ultrasonic and electrochemical treatments, as well as the well known biological process and thermal oxidation of refractory pollutants, are briefly mentioned. (author). 36 refs, 9 figs, 3 tabs.
Authors:
Getoff, N [1] 
  1. Institute for Theoretical Chemistry and Radiation Chemistry, Univ. of Vienna, Vienna (Austria)
Publication Date:
Oct 01, 1997
Product Type:
Conference
Report Number:
IAEA-TECDOC-971; CONF-9412143-
Reference Number:
SCA: 540320; 052001; PA: AIX-29:009775; EDB-98:040371; SN: 98001937301
Resource Relation:
Conference: FAO/IAEA consultants meeting on radiation processing of sewage sludge and its use to increase crop yields and to preserve the environment, Vienna (Austria), 5-9 Dec 1994; Other Information: DN: 36 refs, 9 figs, 3 tabs.; PBD: Oct 1997; Related Information: Is Part Of Sewage sludge and wastewater for use in agriculture. Proceedings of consultants meetings; PB: 199 p.
Subject:
54 ENVIRONMENTAL SCIENCES; 05 NUCLEAR FUELS; CATALYSTS; COMPARATIVE EVALUATIONS; GAMMA RADIATION; OXIDATION; PHOTOLYSIS; RADIODISINFESTATION; ULTRAVIOLET RADIATION; WASTE WATER; WATER POLLUTION ABATEMENT
OSTI ID:
592129
Research Organizations:
Joint FAO/IAEA Div. of Nuclear Techniques in Food and Agriculture, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE98614188; TRN: XA9745787009775
Availability:
INIS; OSTI as DE98614188
Submitting Site:
INIS
Size:
pp. 47-64
Announcement Date:
May 15, 1998

Citation Formats

Getoff, N. A comparative view of radiation, photo and photocatalytically induced oxidation of water pollutants. IAEA: N. p., 1997. Web.
Getoff, N. A comparative view of radiation, photo and photocatalytically induced oxidation of water pollutants. IAEA.
Getoff, N. 1997. "A comparative view of radiation, photo and photocatalytically induced oxidation of water pollutants." IAEA.
@misc{etde_592129,
title = {A comparative view of radiation, photo and photocatalytically induced oxidation of water pollutants}
author = {Getoff, N}
abstractNote = {Water resources are presently overloaded with biologically resistant (refractory) pollutants. Several oxidation methods have been developed for their degradation, the most efficient of which is irradiation treatment, particularly that based on e-beam processing in the presence of O{sub 2}/O{sub 3}. The next-best method is photoinduced pollutant oxidation with VUV- and/or UV-light, using H{sub 2}O{sub 2} or H{sub 2}O{sub 2}/O{sub 3} as an additional source of OH radicals. The photocatalytic method, using e.g. TiO{sub 2} as a catalyst in combination with oxidation agents such as H{sub 2}O{sub 2} or H{sub 2}O{sub 2}/O{sub 3}, is also recommended. The suitability of these three methods is illustrated by examples and they are briefly discussed and compared on the basis of the energy consumption and efficiency. Other methods, such as ozone treatment, the photo-Fenton process, ultrasonic and electrochemical treatments, as well as the well known biological process and thermal oxidation of refractory pollutants, are briefly mentioned. (author). 36 refs, 9 figs, 3 tabs.}
place = {IAEA}
year = {1997}
month = {Oct}
}