U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

A -- FORMATION RATES OF PCDD/F SOL RFQ-OH-00-00022 DUE 122199 POC hans Schellhas WEB: na, na. E-MAIL: U.S. EPA -- Cincinnati Contracts Management Division, schellhas.hans@epamail.epa.gov. Under the authority of FAR 6.302-1, the U.S. Environmental Protection Agency intends to negotiate on a sole source basis with Elmar Altwicker to identify the role and reaction rates of various carbon sources in polychlorinated dibenzodioxin/dibenzofuran (PCDD/F) synthesis through use of a isotope-doped, gas/solid flow reactor system. This work shall identify the relevant published research related to rates and sources of carbon in PCDD/F formation, consisting of a comprehensive literature review from amongst the peer reviewed literature and critical summary thereof. From this review, necessary test plans must be developed from which to devise a recommended test matrix for experiments to be conducted in the EPA flow reactor facility for the purpose of identifying reaction rates and limiting reagents. These data must be analyzed for rate parameters and developed into a model making use of kinetic codes that will be used for predicting formation and emission levels. Professor Altwicker's experience makes him uniquely qualified in that he is an internationally-known expert in the field of formation mechanisms related to chlorinated dioxins and chlorinated furans with particular emphasis on experimentally determined rates of formation in solid/gas flow reactor systems and because he has a unique familiarity with the EPA flow reactor system in which experiments will be done that will enable him to quickly and effectively undertake experimental design. In addition, his program has been the only one that has extensively investigated and authored peer-reviewed publications related to experimentally-based reaction rates for formation of these trace combustion byproducts in solid/gas flow systems with the use of isotopically-labelled isotopes. Further, he is also versed in the use chemical equilibrium/kinetic codes which, when combined with his experience with isotopes and gas/solid flow reactor systems for rate determinations, makes him a unique source. THIS IS NOT A REQUEST FOR PROPOSALS. Only a source with the unique qualifications cited above would be able to be considered and technical documentation fully documenting these unique qualifications would need to be provided within 15 days of the publication of this notice to the office identified above. The point of contact is Hans Schellhas at (513) 487-2055. The subject Facsimile number is (513) 487-2109. Posted 12/06/99 (W-SN406018). (0340)

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