Half-plant zeta potential test. Final report

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Description

With the exception of N Reactor, the production reactors operated by Douglas United Nuclear, Inc., use treated Columbia River water as the coolant on a once-through basis. Thus, radionuclides formed largely by the neutron activation of river salts are discharged to the river. One method of reducing the quantity of radionuclides in the effluent is to increase the efficiency of parent isotope removal during the coolant treatment process. Prior to 1961 the water treatment process had been improved to the point that reactor quality coolant could be produced using an average alum flocculent feed rate of 6 ppm. Laboratory experiments ... continued below

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14 p.

Creation Information

Geier, R.G. & Wells, G.W. December 4, 1967.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Douglas United Nuclear, Inc.
    Publisher Info: Douglas United Nuclear, Inc., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

With the exception of N Reactor, the production reactors operated by Douglas United Nuclear, Inc., use treated Columbia River water as the coolant on a once-through basis. Thus, radionuclides formed largely by the neutron activation of river salts are discharged to the river. One method of reducing the quantity of radionuclides in the effluent is to increase the efficiency of parent isotope removal during the coolant treatment process. Prior to 1961 the water treatment process had been improved to the point that reactor quality coolant could be produced using an average alum flocculent feed rate of 6 ppm. Laboratory experiments carried out in 1959 and 1960 demonstrated that a markedly increased removal of parent isotopes resulted when alum feed rates in the neighborhood of 20 ppm were used. Flocculant feed rate control based on producing a constant value of the electrokinetic charge (zeta potential) of the floc has been practiced at some water treatment plants. Although the hypothesis has not had universal acceptance in the water treatment field, laboratory and field data accumulated at Hanford indicated that further evaluation of the approach was warranted. In order to determine the effects of coagulant control based on zeta potential a half-reactor test was initiated at C Reactor on September 1, 1966. The data obtained during the first seven months of the test have been summarized previously. The test was terminated August 31, 1967, and it is the purpose of this report to present the results of the test.

Physical Description

14 p.

Notes

OSTI as DE95012716

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  • Other Information: DN: Declassified

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  • Other: DE95012716
  • Report No.: DUN--3416
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/92232 | External Link
  • Office of Scientific & Technical Information Report Number: 92232
  • Archival Resource Key: ark:/67531/metadc794683

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • December 4, 1967

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

Description Last Updated

  • April 26, 2016, 2 p.m.

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Geier, R.G. & Wells, G.W. Half-plant zeta potential test. Final report, report, December 4, 1967; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc794683/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.