Control of the accumulation of non-process elements and organic compounds in pulp mills with bleach filtrate reuse. Quarterly report, October--December 1996

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Description

A portion of each filtrate sample was freeze-dried and the resulting solids were analyzed for ash content. Adsorption experiments with calcium and barium were carried at 70{degrees}C in a temperature controlled incubator under continuous mixing in order to simulate the environment experienced by brownstock as it moves through the Q stage. In the calcium experiments, it was difficult to accurately determine the calcium adsorbed on the pulp by measuring the depletion of calcium in the aqueous phase. Consequently, the technique was modified. In the modified technique, the calcium-adsorbed pulp is acid washed again to release the calcium. The calcium concentration ... continued below

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7 p.

Creation Information

Frederick, W.J.; Laver, M.L. & Rorrer, G.L. December 31, 1996.

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Description

A portion of each filtrate sample was freeze-dried and the resulting solids were analyzed for ash content. Adsorption experiments with calcium and barium were carried at 70{degrees}C in a temperature controlled incubator under continuous mixing in order to simulate the environment experienced by brownstock as it moves through the Q stage. In the calcium experiments, it was difficult to accurately determine the calcium adsorbed on the pulp by measuring the depletion of calcium in the aqueous phase. Consequently, the technique was modified. In the modified technique, the calcium-adsorbed pulp is acid washed again to release the calcium. The calcium concentration in the washings is measured, and the calcium adsorbed on the pulp is estimated by material balance. Measurement of calcium adsorption on the brownstock pulp fibers from the L-P/Samoa mill have been obtained.

Physical Description

7 p.

Notes

OSTI as DE97004611

Medium: P; Size: 7 p.

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  • Other Information: PBD: 1996

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  • Other: DE97004611
  • Report No.: DOE/ID/13441--T2
  • Grant Number: FC07-96ID13441
  • DOI: 10.2172/465310 | External Link
  • Office of Scientific & Technical Information Report Number: 465310
  • Archival Resource Key: ark:/67531/metadc681983

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  • December 31, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 13, 2017, 12:46 p.m.

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Frederick, W.J.; Laver, M.L. & Rorrer, G.L. Control of the accumulation of non-process elements and organic compounds in pulp mills with bleach filtrate reuse. Quarterly report, October--December 1996, report, December 31, 1996; United States. (https://digital.library.unt.edu/ark:/67531/metadc681983/: accessed July 11, 2020), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.