Phosphorus removal by the use of apatite in constructed wetlands: Design recommendations - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Water Practice and Technology Année : 2011

Phosphorus removal by the use of apatite in constructed wetlands: Design recommendations

Pascal Molle
D. Esser
  • Fonction : Auteur
C. Morlay
EAU
N. Harouiya
  • Fonction : Auteur
EAU

Résumé

Phosphorus (P) removal in constructed wetlands (CWs) has received particular attention during the last decades by using specific materials which promote P adsorption/precipitation phenomena. Recent studies have shown an interest in using apatite materials to promote P precipitation onto their surface. About ten years of experiments at different scales (laboratory, pilot, full scale) have passed. The process is now open in France. This paper presents the first design recommendations according to the apatite mineral quality and treatment outlet requirements. Kinetics and their evolution with the material saturation degree are presented based on the k-C* model. The process can achieve 1 mgP.l-1 for long term while using surface P removal filter area of 0.5 m2.p.e.-1. With a low land footprint and high P removal efficiency, the interest of the process also result in the orthophosphates accumulation on a phosphate mineral which makes easier to reuse phosphorus from wastewater once saturated. © IWA Publishing 2011.
Fichier non déposé

Dates et versions

hal-01813680 , version 1 (12-06-2018)

Identifiants

Citer

Pascal Molle, S. Martin, D. Esser, S. Besnault, C. Morlay, et al.. Phosphorus removal by the use of apatite in constructed wetlands: Design recommendations. Water Practice and Technology, 2011, 6 (3), pp.9. ⟨10.2166/wpt.2011.046⟩. ⟨hal-01813680⟩
29 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More