Biological Aerated Filters: An Adapted Biological Process for Wastewater from Coastal Areas

SUMMARY compact facilities together with modular and environment-friendly appearance are arguments in favour of Biological Aerated Filters (B. A. F. ) in coastal areas where the amount of available land imposes strict limitations on technological choices. The operation of B. A. F. in combination with a physico-chemical process was studied using the data obtained from two wastewater treatment plants located in coastal areas (Barcares and Saint Palais/Mer, France). The main conclusions are the following.