Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin
Abstract: Effects of salinity and low temperature on the removal of dissolved contami-nant metals from water by an iminodiacetic acid (IDA) ion-exchange resin, Amberlite IRC748, were investigated under batch equilibrium conditions. As expected for ions retained by chelation, the efficiency of the re...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.585.4068 2023-05-15T13:53:17+02:00 Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin Thala Valley Tip Penny Woodberry Geoff Stevens Ian Snape Scott Stark The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.585.4068 http://www.pfpc.unimelb.edu.au/people/cvs/gws_publications/102.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.585.4068 http://www.pfpc.unimelb.edu.au/people/cvs/gws_publications/102.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.pfpc.unimelb.edu.au/people/cvs/gws_publications/102.pdf Ion-exchange iminiodiacetic acid low temperature salinity Antarctica metals text 2004 ftciteseerx 2016-01-08T13:14:02Z Abstract: Effects of salinity and low temperature on the removal of dissolved contami-nant metals from water by an iminodiacetic acid (IDA) ion-exchange resin, Amberlite IRC748, were investigated under batch equilibrium conditions. As expected for ions retained by chelation, the efficiency of the resin was reduced with low temperature. The efficiency of the resin increased with salinity: increasing salinity (from 0% seawater) reduces protonation of the resin, lowering solution pH into the optimum pH range for the retention of contaminant metal ions. Selectivities of the divalent matrix cations, Ca2þ and Mg2þ, were decreased with increasing salinity: this is attrib-uted to a shift to an ion-exchange retention mechanism for these ions, which is favoured at lower solution pH. At low salinity, the selectivity for Ca2þ and Mg2þ was decreased at low temperature, however at higher salinities, selectivity was unaffected by low temperature. This is consistent with the proposal of a shift from a chelation to an ion-exchange mechanism for these ions. Text Antarc* Antarctica Unknown Ida ENVELOPE(170.483,170.483,-83.583,-83.583) |
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collection |
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ftciteseerx |
language |
English |
topic |
Ion-exchange iminiodiacetic acid low temperature salinity Antarctica metals |
spellingShingle |
Ion-exchange iminiodiacetic acid low temperature salinity Antarctica metals Thala Valley Tip Penny Woodberry Geoff Stevens Ian Snape Scott Stark Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin |
topic_facet |
Ion-exchange iminiodiacetic acid low temperature salinity Antarctica metals |
description |
Abstract: Effects of salinity and low temperature on the removal of dissolved contami-nant metals from water by an iminodiacetic acid (IDA) ion-exchange resin, Amberlite IRC748, were investigated under batch equilibrium conditions. As expected for ions retained by chelation, the efficiency of the resin was reduced with low temperature. The efficiency of the resin increased with salinity: increasing salinity (from 0% seawater) reduces protonation of the resin, lowering solution pH into the optimum pH range for the retention of contaminant metal ions. Selectivities of the divalent matrix cations, Ca2þ and Mg2þ, were decreased with increasing salinity: this is attrib-uted to a shift to an ion-exchange retention mechanism for these ions, which is favoured at lower solution pH. At low salinity, the selectivity for Ca2þ and Mg2þ was decreased at low temperature, however at higher salinities, selectivity was unaffected by low temperature. This is consistent with the proposal of a shift from a chelation to an ion-exchange mechanism for these ions. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Thala Valley Tip Penny Woodberry Geoff Stevens Ian Snape Scott Stark |
author_facet |
Thala Valley Tip Penny Woodberry Geoff Stevens Ian Snape Scott Stark |
author_sort |
Thala Valley Tip |
title |
Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin |
title_short |
Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin |
title_full |
Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin |
title_fullStr |
Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin |
title_full_unstemmed |
Removal of Metal Contaminants from Saline Waters at Low Temperature by an Iminodiacetic Acid Ion-Exchange Resin |
title_sort |
removal of metal contaminants from saline waters at low temperature by an iminodiacetic acid ion-exchange resin |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.585.4068 http://www.pfpc.unimelb.edu.au/people/cvs/gws_publications/102.pdf |
long_lat |
ENVELOPE(170.483,170.483,-83.583,-83.583) |
geographic |
Ida |
geographic_facet |
Ida |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://www.pfpc.unimelb.edu.au/people/cvs/gws_publications/102.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.585.4068 http://www.pfpc.unimelb.edu.au/people/cvs/gws_publications/102.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766258314024321024 |