The natural leaching of vanadium(V) with CO2 from soil-water in the presence of ammonia, a known
precursor to atmospheric aerosols, has been tested by bubbling carbon dioxide through soil suspension
with varying amount of ammonia. It was found that the leaching of V(V) is enhanced in the presence
of ammonia. From the results of the investigation, it could be concluded that atmospheric CO2 in the
presence of ammonia (the only atmospheric gas that increases the pH of soil-water) could naturally leach
V(V) from soil. Furthermore, it was also shown that the presence of (NH4)2CO3 in soil could enhance the
leaching of toxic V(V) species thereby making it bioavailable for both plants and animals.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1001493 |
| Date | 24 March 2009 |
| Creators | Mandiwana, KL, Panichev, N |
| Publisher | Elsevier |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | |
| Rights | © 2009 Elsevier B.V. |
| Relation | Journal of Hazardous Materials |
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