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POLYMIN - University of Waterloo

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<strong>POLYMIN</strong> 2005<br />

Example 2: Geochemical evolution <strong>of</strong> a low-pH plume<br />

Steady State Flow System from FLONET:<br />

15<br />

z(m)<br />

10<br />

5<br />

0<br />

0 20 40 60 80 100<br />

Distance (m)<br />

pH and Selected mineral buffers after 24 years:<br />

z(m) z(m) z(m) z(m)<br />

pH<br />

15<br />

10<br />

5<br />

0<br />

15 CaCO 3<br />

4 5 6 7 pH<br />

10<br />

5<br />

Calcite<br />

0<br />

15 FeCO 3<br />

0 0.01 0.02 CaCO 3<br />

10<br />

5<br />

Siderite<br />

0<br />

15 AL(OH) 3<br />

10<br />

0 0.02 FeCO 3<br />

5<br />

Gibbsite<br />

0<br />

0 20 40 60 80 1000 0.02 Al(OH) 3<br />

Distance (m)<br />

48

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