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Removal of metals by lime sludge (spent lime) used for water softening

<font size=3>'''Removal of metals by lime sludge (spent lime) used for water softening. Source: [http://publications.iowa.gov/19981/1/IADOT_tr_535_Reuse_Lime_Sludge_Water_Softening_2005.pdf Baker et al. (2005)]'''.</font size><br>
Link to this [[Removal of metals by lime sludge (spent lime) used for water softening|table]]

<table class="sortable">
<tr>
<th rowspan=2>Chemical</th>
<th colspan=2>Percent removal</th>
</tr>
<tr>
<th>pH=9</th>
<th>pH=10</th>
</tr>
<tr>
<td>Lead</td>
<td>>95</td>
<td>>95</td>
</tr>
<tr>
<td>Cadmium</td>
<td>>95</td>
<td>>95</td>
</tr>
<tr>
<td>Silver</td>
<td>80</td>
<td>85</td>
</tr>
<tr>
<td>Chromium III</td>
<td>70</td>
<td>85</td>
</tr>
<tr>
<td>Beryllium</td>
<td>75</td>
<td>>95</td>
</tr>
<tr>
<td>Arsenic V</td>
<td>40</td>
<td>75</td>
</tr>
<tr>
<td>Arsenic III</td>
<td>15</td>
<td>18</td>
</tr>
<tr>
<td>Mercury</td>
<td>20</td>
<td>55</td>
</tr>
<tr>
<td>Selenium IV</td>
<td>20</td>
<td>20</td>
</tr>
<tr>
<td>Selenium VI; Chromium VI</td>
<td colspan=2>negligible</td>
</tr>
</table>

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