Removal of metals by lime sludge (spent lime) used for water softening.
Link to this table
Chemical | 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 |