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 language | English |
|---|---|
| Title of host publication | World Congress on Engineering, WCE 2014 |
| Publisher | Newswood Limited |
| Pages | 613-617 |
| Number of pages | 5 |
| Volume | 2 |
| ISBN (Electronic) | 9789881925374 |
| ISBN (Print) | 9789881925350 |
| Publication status | Published - 2014 |
| Event | World Congress on Engineering and Computer Science 2014, WCECS 2014 - San Francisco, United States Duration: Oct 22 2014 → Oct 24 2014 |
Other
| Other | World Congress on Engineering and Computer Science 2014, WCECS 2014 |
|---|---|
| Country | United States |
| City | San Francisco |
| Period | 10/22/14 → 10/24/14 |
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All Science Journal Classification (ASJC) codes
- Computer Science (miscellaneous)
Cite this
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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 proceeding › Conference contribution
TY - GEN
T1 - Review of silver recovery techniques from radiographic effluent and X-ray film waste
AU - Masebinu, Samson O.
AU - Muzenda, Edison
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84918575474&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84918575474&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9789881925350
VL - 2
SP - 613
EP - 617
BT - World Congress on Engineering, WCE 2014
PB - Newswood Limited
ER -