Research Articles

Catalytic Oxidation of VOCs

4 Conclusions P t - P d - M o - F e as o x i d e s s u p p o r t e d o n t i t a n i a are m o s t active in t h e o x i d a t i o n o f a b r o a d r a n g e of V O C s c o m p a r e d t o PtP d o x i d e s o n t i t a n i a . T h e c a t a l y s t is effective a t relatively l o w t e m p e r a t u r e a n d r e s i s t a n t t o p o i s o n i n g by h a l o g e n a t e d a n d a m i n e m a t e r i a l s . V O C s are c o n v e r t e d i n t o C O 2 a n d H 2 0 v a p o u r in t h e p r e s e n c e o f t h e c a t a l y s t w i t h c o n v e r s i o n efficiency o f u p to 99 % .

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5 References

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[1] LARRINAGANL.; HALL L.: Options for Controlling Organic Air Emissions. The National Environmental Journal pp 26 (May/June 1993) [2] ACRESG.J.K.: Platinum Catalysts for the Control of Air Pollution. The Elimination of Organic Fume by Catalytic Combustion. Plat. Met. Rev. 14, 2 (1970) [3] BLAZOWSKIW.S.; WALSH D.E.: Catalytic Combustion: An Important Consideration for Future Application. Comb. Sci. Tech. 10, 233 (1975) [4] WINDAWI H.; WYATH S . : Catalytic Destruction of Halogenated

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Volatile Organic Compounds. Mechanisms of Platinum Catalyst Systems. Plat. Met. Rev. 37(4),186 (1993) MULLER H.; DELLER K.; DESPEYROUT B.; PELDSZUSE.; KAMMERHOFER P.; KUHN W.; SPIELMANNLEITNUR.; STOGER M.: Catalysis Today 17, 383 (1993) NOORDALLYE.; R1CHMONDJ.R.; TAHIR S.E: Destruction of Volatile Organic Compounds by Catalytic Oxidation. Catalysis Today 17, 359 (1993) AGARWALS.K.; SPIVEYJ.J.; TEVAULTD.E.: Kinetics of the Catalytic Destruction of Cyanogen Chloride. Appl. Catal. B: Environmental 5, 389 (1995) SplVEYJ.J.: Complete Catalytic Oxidation of Volatile Organics. Ind. Eng. Chem. Res. 26, 2165 (1987) ARMORJ.N.: Volatile Organic Compounds: An Overview. In Environmental Catalysis, ARMOR J.N. (ed.) 205th National Meeting of the American Chemical Society, Denover, Colorado, pp 298-300 (1993) SERMONP.A.; KNIGHT SJ.: Improvements in and Relating to Gas Putification Catalysts. British application GB 1558167-A (1975) SUMMERSJ.C.; FROST A.C.: Catalytic Control of Gaseous Pollutants from Stationary Sources. The International Precious Metals Institute, Las Vegas, Nevada pp 1-12 (1991) Received: December 6, 1995 Accepted: Dezember 12, 1995

News & Views

WHO Publications Air Quality Guidelines for Europe Publisher: WHO Regional Publications, European Series, No. 23, 1987, xii + 426 pages, ISBN 92 890 1114 9, Sw. fr. 60.-/US $ 54.00 Provides air quality guidelines for 28 organic and inorganic substances known to con-

Site Selection for New Hazardous Waste Management Facilities Editor: W.M. SLOAN Publisher: WHO Regional Publications, European Series, No. 46, 1993, xiv + 118 pages, ISBN 92 890 1309 5, Sw. ft. 21.-/US $18.90 A comprehensive guide to the selection of new sites where hazardous wastes can be collected, treated, stored and disposed of a safe manner acceptable to the general public. Emphasis is placed on the measures needed to

ESPR - Environ. Sci. & Pollut. Res. 3 (1) 1996

tribute to the problem of air pollution in Europe. Guideline values, which were established in consultation with more than 150 experts, are intended to serve as a basis for the establishment of national standards and other control measures needed to safeguard public health. For some of the substances, adverse effects on vegetation have also been considered. The book has four main parts. The first outlines the methodological problems involved in assessing the health risks posed by air constituents and contaminants, whether in indoor or outdoor air. The second and third parts present guideline values for 12 organic

and 16 inorganic substances, supported by a summary of available data on sources and routes of exposure, kinetics and metabolism, effects on experimental animals and in vitro test systems, and effects on humans. The final part considers the effects of selected inorganic substances on vegetation, including an explanation of the complex type of air pollution related to the dramatic deterioration of forests in many parts of Europe. The book concludes with a summary of health risks associated with air pollution caused by tobacco smoking.

protect health, preserve environmental quality, and respect the social values and economic wellbeing of the host community. Though intended for use in European countries, the policy and technical options described are applicable to situations in most countries throughout the world.

or accept a new facility, and a technical model. Other topics discussed include the distribution of responsibilities in facility development, the use of screening and exclusionary criteria, and the procedures for site evaluation.

The guide has five chapters. The first two outline general principles that should guide site selection and offer advice on the acquisition of data for planning purposes, The third and most extensive chapter, focused on procedural and technical considerations, presents and explains two general frameworks for site selection: A voluntary model, which anticipates that one or more communities will want

Risk assessement is addressed in the fourth chapter, which lists important site-related parameters for predicting the distribution of pollutants in ground-water, surface water, land, and air. The final chapter offers practical advice on attitudes that help explain public opposition, common errors in dealing with the public that can defeat technically worthwhile projects, and negotiating strategies that can help resolve opposition

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Air quality guidelines for Europe.

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