Behavior of mercury in the formic acid vent condenser. Final report

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The concentrations of mercury at the FAVC inlet and exit were measured during the BL1 and PX6 runs of the Integrated DWPF Melter System (IDMS) with the HEME bypassed and without the ammonia scrubber. The results showed that mercury concentrations of approximately 1.02-12.7 (mean 5.74) times saturation occurred at the FAVC exit. The concentration of mercury at the FAVC inlet was found to be 0.66-6.2 times the saturation value (based on the SRAT condenser exit). In the PX7 run, the ammonia scrubber was used and the FAVC HEME was not bypassed. The results from this run showed that the FAVC ... continued below

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46 p.

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Zamecnik, J. R. July 22, 1996.

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Description

The concentrations of mercury at the FAVC inlet and exit were measured during the BL1 and PX6 runs of the Integrated DWPF Melter System (IDMS) with the HEME bypassed and without the ammonia scrubber. The results showed that mercury concentrations of approximately 1.02-12.7 (mean 5.74) times saturation occurred at the FAVC exit. The concentration of mercury at the FAVC inlet was found to be 0.66-6.2 times the saturation value (based on the SRAT condenser exit). In the PX7 run, the ammonia scrubber was used and the FAVC HEME was not bypassed. The results from this run showed that the FAVC inlet concentrations again were above saturation (1.45-15.5 times saturation), but that the FAVC exit concentrations were only 0.02-0.41 times saturation (except for one data point at 1.61 times saturation). Operation of the FAVC without the HEME could therefore result in FAVC exit mercury concentrations of greater than 5.74 times saturation, which would result in DWPF emitting greater than 405 lb/yr of mercury at 100 percent attainment; this quantity is well in excess of the permit limit of 175 lb/yr (for all of DWPF). However, with the HEME in place, the emissions are predicted to be only about 40 lb/yr for an FAVC exit temperature of 10 degrees C. The experimental results also indicate that the ammonia scrubbers have little effect on the removal of mercury.

Physical Description

46 p.

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INIS; OSTI as DE97060073

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  • Other Information: PBD: 22 Jul 1996

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  • Other: DE97060073
  • Report No.: WSRC-RP--96-352
  • Grant Number: AC09-89SR18035
  • DOI: 10.2172/501561 | External Link
  • Office of Scientific & Technical Information Report Number: 501561
  • Archival Resource Key: ark:/67531/metadc691870

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  • July 22, 1996

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • May 16, 2016, 11:33 a.m.

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Zamecnik, J. R. Behavior of mercury in the formic acid vent condenser. Final report, report, July 22, 1996; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc691870/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.