| 摘要 |
<p>A plant for treating waste water to eliminate selenium comprises in sequence an alkalinisation tank (1), a first flocculation tank (2), a first clarification system (3), an acidification tank (4) connected to the supernatant liquid outlet of the first clarification system (3), a precipitation tank (5), a second flocculation tank (6), a second clarification system (7), sludge dehydration systems connected to the sludge outlets of the clarification systems (3, 7) and auxiliary systems for detecting the pH and the sulphates content of the slurry as well as for the preparation and/or storage and/or dosage of the substances to be fed to said tanks (1, 2, 4, 5, 6) to carry out the respective steps of the treatment according to the method implemented by the present plant.</p> |
