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SMPTE Journal ( Volume: 85, Issue: 4, April 1976)
[ACTIVE]

The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
85, No. 4, pp. 206–216
Abstract
The two most commonly used methods for silver removal — metallic replacement and electrolytic plating — can remove better than 95% of the silver but are not effective in removing any other metals which may be present in photographic effluents. The method of chemical precipitation with sodium sulfide can remove virtually 100% of the silver and most other metals from dilute or concentrated photographic effluents using one-step treatment. A sulfide precipitation process has been developed using automatic pH control, automatic detection of the precipitation endpoint, and two-stage filtration which is capable of safely and efficiently treating photographic effluents of varying pH and metals concentration.
Publication Date
1976-04-01
DOI
10.5594/J06837
ISSN
Print: 0036-1682
Link
https://doi.org/10.5594/J06837
Author(s)
Robert L. LaPerleEastman Kodak Co., Photographic Technology Div., Rochester, NY 14650.
Copyright
© 1976 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Hansen R. M. , “Removal of zinc from Bayer process liquors with sodium sulfide,” Metals , 21 : 32 – 34 , Sept. 1969 . EXTERNAL
  • 2. Cadman T. W. Dellinger R. W. , “Techniques for removing metals from process wastewater,” Chem. Eng. , 81 : 79 – 85 , 15 April 1974 . EXTERNAL
  • 3. Eckenfelder W. W. Jr. Adams C. E. Jr. Ford D. L. Krenkel P. A. , “The development of design criteria for wastewater treatment process,” delivered at a Symposium sponsored by Vanderbilt Univ., Nashville, Tenn., 16–20 April 1973 . EXTERNAL
  • 4. Ballard A. E. Bush D. Zuehlke C. W. , “Volumetric determination of silver using thioacetamide,” Anal. Chem. , 31 : 1368 , 1959 . EXTERNAL
  • 5. Bober T. W. Cooley A. C. , “The filter press for the filtration of insoluble photographic processing wastes.” Kodak Publication J-45 (pamphlet). EXTERNAL
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Robert L. LaPerle; The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation, SMPTE Journal ( Volume: 85, Issue: 4, April 1976); SMPTE, 1976. Available at https://doi.org/10.5594/J06837
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Robert L. LaPerle; The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation, SMPTE Journal ( Volume: 85, Issue: 4, April 1976); SMPTE, 1976. Available at https://doi.org/10.5594/J06837

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Robert L. LaPerle; The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation, SMPTE Journal ( Volume: 85, Issue: 4, April 1976); SMPTE, 1976. Available at https://doi.org/10.5594/J06837
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<span class="citation">Robert L. LaPerle; <cite>The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation</cite>, SMPTE Journal ( Volume: 85, Issue: 4, April 1976); SMPTE, 1976. Available at <a href="https://doi.org/10.5594/J06837" target="_blank" rel="noopener">https://doi.org/10.5594/J06837</a></span>

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Robert L. LaPerle; The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation, SMPTE Journal ( Volume: 85, Issue: 4, April 1976); SMPTE, 1976
doi: 10.5594/J06837
url: https://doi.org/10.5594/J06837
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<li>
Robert L. LaPerle; <cite id="bib-10-5594-j06837">The Removal of Metals from Photographic Effluent by Sodium Sulfide Precipitation</cite>, SMPTE Journal ( Volume: 85, Issue: 4, April 1976); SMPTE, 1976
<span class="doi">10.5594/J06837</span>
</li>

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