The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of waste material. The weathering and oxidation of the waste produces what is commonly known as Acid Mine Drainage (AMD), a dilute sulphuric acid rich in Fe(II) and heavy metals. This thesis serves to summarise five papers reporting how the precipitation of Fe(III) phases can attenuate the contamination of heavy metals by adsorption processes. Schwertmannite (Fe8O8(OH)6SO4) is a common Fe(III) mineral precipitating in AMD environments at pH 3-4. The stability and surface chemistry of this mineral was investigated. It was shown that the stability depended strongly on pH and temperature, an increase in either promoted transformation to goethite (α-F...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of wa...
The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of wa...
In the last decades, the contamination by metals from mining areas, especially that due to Acid Mine...
In the last decades, the contamination by metals from mining areas, especially that due to Acid Mine...
In the last decades, the contamination by metals from mining areas, especially that due to Acid Mine...
Weathering of sulphide minerals produces a large variety of Fe-oxide-bearing ochreous, varicoloured ...
Weathering of sulphide minerals produces a large variety of Fe-oxide-bearing ochreous, varicoloured ...
Weathering of sulphide minerals produces a large variety of Fe-oxide-bearing ochreous, varicoloured ...
Secondary Fe (III) oxyhydroxides play a key role in controlling the mobility and bioavailability of ...
Secondary Fe (III) oxyhydroxides play a key role in controlling the mobility and bioavailability of ...
The role of Fe(III) minerals in controlling acid mine drainage (AMD) chemistry was studied using sam...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of wa...
The mining of sulphidic ore to extract metals such as zinc and copper produces huge quantities of wa...
In the last decades, the contamination by metals from mining areas, especially that due to Acid Mine...
In the last decades, the contamination by metals from mining areas, especially that due to Acid Mine...
In the last decades, the contamination by metals from mining areas, especially that due to Acid Mine...
Weathering of sulphide minerals produces a large variety of Fe-oxide-bearing ochreous, varicoloured ...
Weathering of sulphide minerals produces a large variety of Fe-oxide-bearing ochreous, varicoloured ...
Weathering of sulphide minerals produces a large variety of Fe-oxide-bearing ochreous, varicoloured ...
Secondary Fe (III) oxyhydroxides play a key role in controlling the mobility and bioavailability of ...
Secondary Fe (III) oxyhydroxides play a key role in controlling the mobility and bioavailability of ...
The role of Fe(III) minerals in controlling acid mine drainage (AMD) chemistry was studied using sam...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...
International audienceSchwertmannite formation and transformation, key processes that influence the ...