Review of silver recovery techniques from radiographic effluent and X-ray film waste

Samson O. Masebinu, Edison Muzenda

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    This paper highlights the techniques for silver recovery from radiographic waste; effluent and X-ray films. The decline in silver natural resource has increased the cost of sourcing for pure silver. The ecological problems caused by the disposal of radiographic waste is a huge motivation for increased recovery, regeneration and recycling process. The negative impact of pure silver on human and the environment is low but its soluble salt and emission from its recovery process pose a great risk to the ecosystem. Pyro-metallurgical processes of silver recovery requires heat >950°C which also destroys the polymer substrate. Hydrometallurgical processes such as electrolysis, metallic replacement, chemical precipitation and adsorption, are often used and provides high purity and efficiency. A proposed research work for silver recovery based on chemical precipitation using oxalic acid has been presented.

    Original languageEnglish
    Title of host publicationWorld Congress on Engineering, WCE 2014
    PublisherNewswood Limited
    Pages613-617
    Number of pages5
    Volume2
    ISBN (Electronic)9789881925374
    ISBN (Print)9789881925350
    Publication statusPublished - 2014
    EventWorld Congress on Engineering and Computer Science 2014, WCECS 2014 - San Francisco, United States
    Duration: Oct 22 2014Oct 24 2014

    Other

    OtherWorld Congress on Engineering and Computer Science 2014, WCECS 2014
    CountryUnited States
    CitySan Francisco
    Period10/22/1410/24/14

    Fingerprint

    X ray films
    Effluents
    Silver
    Recovery
    Oxalic acid
    Natural resources
    Waste heat utilization
    Electrolysis
    Waste disposal
    Ecosystems
    Recycling
    Salts
    Adsorption
    Polymers
    Substrates
    Costs

    All Science Journal Classification (ASJC) codes

    • Computer Science (miscellaneous)

    Cite this

    Masebinu, S. O., & Muzenda, E. (2014). Review of silver recovery techniques from radiographic effluent and X-ray film waste. In World Congress on Engineering, WCE 2014 (Vol. 2, pp. 613-617). Newswood Limited.
    Masebinu, Samson O. ; Muzenda, Edison. / Review of silver recovery techniques from radiographic effluent and X-ray film waste. World Congress on Engineering, WCE 2014. Vol. 2 Newswood Limited, 2014. pp. 613-617
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    Masebinu, SO & Muzenda, E 2014, Review of silver recovery techniques from radiographic effluent and X-ray film waste. in World Congress on Engineering, WCE 2014. vol. 2, Newswood Limited, pp. 613-617, World Congress on Engineering and Computer Science 2014, WCECS 2014, San Francisco, United States, 10/22/14.

    Review of silver recovery techniques from radiographic effluent and X-ray film waste. / Masebinu, Samson O.; Muzenda, Edison.

    World Congress on Engineering, WCE 2014. Vol. 2 Newswood Limited, 2014. p. 613-617.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Masebinu SO, Muzenda E. Review of silver recovery techniques from radiographic effluent and X-ray film waste. In World Congress on Engineering, WCE 2014. Vol. 2. Newswood Limited. 2014. p. 613-617