XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 209
the contaminants from the cleaned sand. The regenerated,
clean sand was pumped back into the sand filters and the
fine contaminants were disposed of in the tailings pond.
Figure 18 shows the Gen B processing circuit at the water
treatment plant. A total of 20 metric tons of material was
processed during this pilot project.
XRD analysis was performed on the feed and post-
HPSA material. Figure 19 displays the results of quartz
content increasing from 80% in the feed to 96% in the
Gen B sample, and calcite content decreasing from 16%
in the feed material to 2% in the Gen B sample. This data
concluded that the continuous Gen B unit was able repli-
cate results observed in the lab scale batch unit.
Figure 15. HPSA process for regenerating filter sand
Figure 16. HPSA processing filter sand over time
Figure 17. XRD comparison of pre and post HPSA processing of filter sand
the contaminants from the cleaned sand. The regenerated,
clean sand was pumped back into the sand filters and the
fine contaminants were disposed of in the tailings pond.
Figure 18 shows the Gen B processing circuit at the water
treatment plant. A total of 20 metric tons of material was
processed during this pilot project.
XRD analysis was performed on the feed and post-
HPSA material. Figure 19 displays the results of quartz
content increasing from 80% in the feed to 96% in the
Gen B sample, and calcite content decreasing from 16%
in the feed material to 2% in the Gen B sample. This data
concluded that the continuous Gen B unit was able repli-
cate results observed in the lab scale batch unit.
Figure 15. HPSA process for regenerating filter sand
Figure 16. HPSA processing filter sand over time
Figure 17. XRD comparison of pre and post HPSA processing of filter sand