Difference between revisions of "Removal of metals by lime sludge (spent lime) used for water softening"
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| − | <font size=3>'''Removal of metals by lime sludge (spent lime) used for water softening'''.</font size><br> | + | <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]] | Link to this [[Removal of metals by lime sludge (spent lime) used for water softening|table]] | ||
<table class="sortable"> | <table class="sortable"> | ||
<tr> | <tr> | ||
| − | <th>Chemical</th> | + | <th rowspan=2>Chemical</th> |
| + | <th colspan=2>Percent removal</th> | ||
| + | </tr> | ||
| + | <tr> | ||
<th>pH=9</th> | <th>pH=9</th> | ||
<th>pH=10</th> | <th>pH=10</th> | ||
Revision as of 16:23, 29 December 2020
Removal of metals by lime sludge (spent lime) used for water softening. Source: Baker et al. (2005).
Link to this table
| Chemical | Percent removal | |
|---|---|---|
| pH=9 | pH=10 | |
| Lead | >95 | >95 |
| Cadmium | >95 | >95 |
| Silver | 80 | 85 |
| Chromium III | 70 | 85 |
| Beryllium | 75 | >95 |
| Arsenic V | 40 | 75 |
| Arsenic III | 15 | 18 |
| Mercury | 20 | 55 |
| Selenium IV | 20 | 20 |
| Selenium VI; Chromium VI | negligible | |