In-line ultrasonic monitoring of waste slurry suspended solids

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During the transport of tank waste, it is very important to quantitatively measure the percent solids concentration (PSC) of the waste, which indicates the flow conditions and the extent of solids settling. At Argonne National Laboratory, an in-line, real-time, a nonintrusive ultrasonic monitoring system has been developed to measure the PSC and flow density of tank waste by measuring sound velocity and attenuation in the flow. This system consists of a pair of longitudinal transducers bonded to waveguides on the opposite sides of the pipe and operating at IMHz simultaneously in pulse-and-echo and pitch-and-catch modes. The PSC measurement is provided ... continued below

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8 p.

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Chien, H.-T.; Sheen, S.-H. & Raptis, A. C. May 25, 2000.

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Description

During the transport of tank waste, it is very important to quantitatively measure the percent solids concentration (PSC) of the waste, which indicates the flow conditions and the extent of solids settling. At Argonne National Laboratory, an in-line, real-time, a nonintrusive ultrasonic monitoring system has been developed to measure the PSC and flow density of tank waste by measuring sound velocity and attenuation in the flow. This system consists of a pair of longitudinal transducers bonded to waveguides on the opposite sides of the pipe and operating at IMHz simultaneously in pulse-and-echo and pitch-and-catch modes. The PSC measurement is provided by attenuation, while the density measurement is calculated by impedance and sound velocity. A thermocouple is attached to one of the waveguides for automatic temperature correction of the measurements. This system was one of four evaluated for in-line measurement of slurry at Oak Ridge National Laboratory in 1998. The results indicate that the measurements are in good agreement with a Coriolis meter and that the system can be used to monitor PSC up to 40 wt.%. However, the system is greatly affected by entrained air bubbles within the solid flow during Puisair mixing. A different mixing mechanism will solve this problem.

Physical Description

8 p.

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OSTI as DE00755860

Medium: P; Size: 8 pages

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  • 16th International Conference on Advanced Science and Technology 2000, Batavia, IL (US), 06/03/2000

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  • Report No.: ANL/ET/CP-101734
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 755860
  • Archival Resource Key: ark:/67531/metadc709228

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Office of Scientific & Technical Information Technical Reports

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  • May 25, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 6:48 p.m.

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Chien, H.-T.; Sheen, S.-H. & Raptis, A. C. In-line ultrasonic monitoring of waste slurry suspended solids, article, May 25, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc709228/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.