INDUSTRIAL EFFLUENT TREATMENT USING IONIZING RADIATION COMBINED TO TITANIUM DIOXIDE

Conference · Mon Oct 04 00:00:00 EDT 2004

OSTI ID:840285

Duarte, C L; Oikawa, H; Mori, M N; Sampa, M H.O.

The Advanced Oxidation Process (AOP) with OH radicals are the most efficient to mineralize organic compounds, and there are various methods to generate OH radicals as the use of ozone, hydrogen peroxide and ultra-violet radiation and ionizing radiation. The irradiation of aqueous solutions with high-energy electrons results in the excitation and ionizing of the molecules and rapid (10{sup -14} - 10{sup -9} s) formation of reactive intermediates. These reactive species will react with organic compounds present in industrial effluent inducing their decomposition. Titanium dioxide (TiO{sub 2}) catalyzed photoreaction is used to remove a wide range of pollutants in air and water media, combined to UV/VIS light, FeO{sub 2}, and H{sub 2}O{sub 2}, but as far as known there is no report on the combination with ionizing radiation. In some recent studies, the removal of organic pollutants in industrial effluent, such as Benzene, Toluene, and Xylene from petroleum production using ionizing radiation was investigated. It has been ob served that none of the methods can be used individually in wastewater treatment applications with good economics and high degree of energy efficiency. In the present work, the efficiency of ionizing radiation in presence of TiO{sub 2} to treat industrial effluent was evaluated. The main aim to combine these technologies is to improve the efficiency for very hard effluents and to reduce the processing cost for future implementation to large-scale design.

• Research Organization: Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP Av. Lineu Prestes 2.242 05508-900, Sao Paulo, SP (BR)
• Sponsoring Organization: none (US)
• OSTI ID: 840285
• Resource Relation: Conference: Americas Nuclear Energy Symposium (ANES 2004), Miami, FL (US), 10/03/2004--10/06/2004; Other Information: PBD: 4 Oct 2004
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
29 ENERGY PLANNING
POLICY AND ECONOMY
54 ENVIRONMENTAL SCIENCES
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
AQUEOUS SOLUTIONS
BENZENE
ENERGY EFFICIENCY
HYDROGEN PEROXIDE
IONIZING RADIATIONS
IRRADIATION
NUCLEAR ENERGY
ORGANIC COMPOUNDS
OXIDATION
OZONE
PETROLEUM
RADIATIONS
TITANIUM
TOLUENE
XYLENES
ADVANCED OXIDATION PROCESS
TITANIUM DIOXIDE
INDUSTRIAL EFFLUENTS
POLLUTION PREVENTION