| 摘要 |
<p>The purification is carried out through bacteria adapted to the residue externally to the reactors involved in the process, said bacteria being fixed to support means which are immersed in the reactors. The process comprises first and second preliminar physical treatments, a physical-chemical treatment, a treatment in at least one aerobic biological reactor, a treatment in at least one anoxic biological reactor arranged upstream of the first aerobic reactor, a treatment in at least one clarification pool, at least one recirculation of a portion of the slurry generated in the biological reactors to at least one of them, backfeeding from at least one of the aerobic biological reactors to the same, a second refeeding phase from the outlet of the first aerobic reactor to the interior of the anoxic reactor and a treatment in a refining reactor which operates alternatively in anoxic and aerobic conditions.</p> |
