On-line surfactant monitoring

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Description

This group has developed a process to extract metal ions from dilute aqueous solutions. The process uses water soluble polymers to complex metal ions. The metal/polymer complex is concentrated by ultrafiltration and the metals are recovered by a pH adjustment that frees the metal ions. The metal ions pass through the ultrafiltration membrane and are recovered in a concentrated form suitable for reuse. Surfactants are present in one of the target waste streams. Surfactants foul the costly ultrafiltration membranes. It was necessary to remove the surfactants before processing the waste stream. This paper discusses an on-line device the authors fabricated ... continued below

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8 p.

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Mullen, K.I.; Neal, E.E.; Soran, P.D. & Smith, B. April 1, 1995.

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Description

This group has developed a process to extract metal ions from dilute aqueous solutions. The process uses water soluble polymers to complex metal ions. The metal/polymer complex is concentrated by ultrafiltration and the metals are recovered by a pH adjustment that frees the metal ions. The metal ions pass through the ultrafiltration membrane and are recovered in a concentrated form suitable for reuse. Surfactants are present in one of the target waste streams. Surfactants foul the costly ultrafiltration membranes. It was necessary to remove the surfactants before processing the waste stream. This paper discusses an on-line device the authors fabricated to monitor the process stream to assure that all the surfactant had been removed. The device is inexpensive and sensitive to very low levels of surfactants.

Physical Description

8 p.

Notes

OSTI as DE95009417

Source

  • International forum process analytical chemistry (IFPAC), Houston, TX (United States), 22-25 Jan 1995

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  • Other: DE95009417
  • Report No.: LA-UR--95-966
  • Report No.: CONF-950158--2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 41323
  • Archival Resource Key: ark:/67531/metadc682778

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Creation Date

  • April 1, 1995

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • March 1, 2016, 6:11 p.m.

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Mullen, K.I.; Neal, E.E.; Soran, P.D. & Smith, B. On-line surfactant monitoring, article, April 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc682778/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.