lagune de finition

CONT: On peut y ajouter une lagune de finition de type mixte (microphytes et macrophytes) pour affiner le traitement notamment au niveau de l'azote, voire du phosphore.

CONT: Settling ponds may sometimes be referred to as polishing ponds, but they are not synonymous. A polishing pond is any pond in the treatment train that follows the facultative pond. A settling pond is usually placed at the beginning of the treatment series, but may also be a pond at the end of the system.