Analysis of cascade impactor and EPA method 29 data from the americium/curium pilot melter system

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The offgas system of the Am/Cm pilot melter at TNX was characterized by measuring the particulate evolution using a cascade impactor and EPA Method 29. This sampling work was performed by John Harden of the Clemson Environmental Technologies Laboratory, under SCUREF Task SC0056. Elemental analyses were performed by the SRTC Mobile Laboratory.Operation of the Am/Cm melter with B2000 frit has resulted in deposition of PbO and boron compounds in the offgas system that has contributed to pluggage of the High Efficiency Mist Eliminator (HEME). Sampling of the offgas system was performed to quantify the amount of particulate in the offgas ... continued below

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41 p.

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Zamecnik, J.R. November 1, 1997.

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Description

The offgas system of the Am/Cm pilot melter at TNX was characterized by measuring the particulate evolution using a cascade impactor and EPA Method 29. This sampling work was performed by John Harden of the Clemson Environmental Technologies Laboratory, under SCUREF Task SC0056. Elemental analyses were performed by the SRTC Mobile Laboratory.Operation of the Am/Cm melter with B2000 frit has resulted in deposition of PbO and boron compounds in the offgas system that has contributed to pluggage of the High Efficiency Mist Eliminator (HEME). Sampling of the offgas system was performed to quantify the amount of particulate in the offgas system under several sets of conditions. Particulate concentration and particle size distribution were measured just downstream of the melter pressure control air addition port and at the HEME inlet. At both locations, the particulate was measured with and without steam to the film cooler while the melter was idled at about 1450 degrees Celsius. Additional determinations were made at the melter location during feeding and during idling at 1150 degrees Celsius rather than 1450 degrees Celsius (both with no steam to the film cooler). Deposition of particulates upstream of the melter sample point may have, and most likely did occur in each run, so the particulate concentrations measured do no necessarily reflect the total particulate emission at the melt surface. However, the data may be used in a relative sense to judge the system performance.

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41 p.

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INIS; OSTI as DE98051509

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  • Other Information: PBD: Nov 1997

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  • Other: DE98051509
  • Report No.: WSRC-RP--97-00937
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/565412 | External Link
  • Office of Scientific & Technical Information Report Number: 565412
  • Archival Resource Key: ark:/67531/metadc689602

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  • November 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • June 13, 2016, 6:38 p.m.

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Zamecnik, J.R. Analysis of cascade impactor and EPA method 29 data from the americium/curium pilot melter system, report, November 1, 1997; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc689602/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.