6533b853fe1ef96bd12ac0dd
RESEARCH PRODUCT
Impact de l'épandage des boues sur le phosphore dissous et particulaire des écoulements de surface
Christian PlenchetteHugues Vanden BosscheChantal Gascuel-odouxGuilhem BourriéFabienne Trolardsubject
[SDE] Environmental SciencesAMENDEMENT DE SOLEPANDAGE DES EAUX USEES[SDV]Life Sciences [q-bio]chemistry.chemical_elementParticulate phosphorusSoil surface[INFO] Computer Science [cs]010501 environmental sciences01 natural sciencesSUSPENSIONDesorption[INFO]Computer Science [cs]0105 earth and related environmental sciencesWater Science and TechnologyHydrologySuspended solidsPhosphorusTRANSFERT04 agricultural and veterinary sciencesParticulates6. Clean water[SDV] Life Sciences [q-bio]chemistryEnvironmental chemistryEUTROPHICATION[SDE]Environmental Sciences040103 agronomy & agriculture0401 agriculture forestry and fisheriesSurface runoffSludgedescription
Abstract The aim of this study was to assess the effect of land application of sewage sludge on phosphorus (P) losses during intense rainfall. Three rainfall simulations (40 mm h−1 of 30 min duration) were conducted on a field amended with sewage sludge. The overland flow water (OFW) was monitored and sampled every minute. The suspended solid, the dissolved and total phosphorus (respectively SS, TP and DP) concentrations were analysed. The forms of particulate bound P (PP) were investigated. Several results stem from this experiment: (a) sludge application induced a large increase in the DP content of the OFW; the concentrations obtained (0.15–0.57 mg l−1) were shown to result from desorption processes from the SS; and (b) in contrast, sludge application affected neither the SS content nor the TP concentration of OFW (9.5 g mg l−1 P, consisting of PP for 95%). However, sludge preserved the structure of soil surface and led to a 45% decrease in runoff rate (150 m3 ha−1 collected on the test surface compare...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-04-01 |