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Poster communications
Mise au point d’un pilote de recyclage du phosphore des lisiers de porcs traités biologiquement sous forme d’un engrais minéral phosphaté
Mise au point d’un pilote de recyclage du phosphore des lisiers de porcs traités biologiquement sous forme d’un engrais minéral phosphaté
Abstract : Previous studies have shown that it was feasible, at bench scale, to recycle P from pig slurry as mineral fertiliser by a simple acidification/precipitation process. In this study the influence of several parameters on the continuous pilot process designed from the bench scale results were tested. The pH, mixing and solid retention time were the main factors influencing the process. With high pH (9,5), short solid retention time (4h.) and slow mixing (100r.min-1) the abatement rate was closed to 100% both on dissolved and total phosphorus. Between 1,5 and 9,2g. of dry product per litter of influent were collected. The agronomic properties of this mix of struvite, calcium phosphate and magnesium oxide will be tested soon.
Mots-clés :
STRUVITE
https://hal.inrae.fr/hal-02597270
Contributor : Migration Irstea Publications <>
Submitted on : Friday, May 15, 2020 - 10:23:43 PM
Last modification on : Friday, November 27, 2020 - 3:54:03 PM
Contributor : Migration Irstea Publications <>
Submitted on : Friday, May 15, 2020 - 10:23:43 PM
Last modification on : Friday, November 27, 2020 - 3:54:03 PM
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