Dissolution of particulate phosphorus in pig slurry through biological acidification: A critical step for maximum phosphorus recovery as struvite
| Autor: | Patrick Dabert, Marie-Line Daumer, S. Picard, Simon Piveteau |
|---|---|
| Přispěvatelé: | Optimisation des procédés en Agriculture, Agroalimentaire et Environnement (UR OPAALE), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), UNIV BRETAGNE LOIRE FRA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) |
| Rok vydání: | 2017 |
| Předmět: |
Acidogenesis
Environmental Engineering Struvite Swine 0208 environmental biotechnology Inorganic chemistry chemistry.chemical_element Magnesium Compounds 02 engineering and technology 010501 environmental sciences 01 natural sciences Waste Disposal Fluid Phosphates chemistry.chemical_compound Animals Waste Management and Disposal Dissolution SWINE MANURE PIG SLURRY 0105 earth and related environmental sciences Water Science and Technology Civil and Structural Engineering PHOSPHORUS RECOVERY Magnesium Ecological Modeling Phosphorus Biodegradable waste Pollution 020801 environmental engineering Manure chemistry LACTIC ACID FERMENTATION Solubility Environmental chemistry [SDE]Environmental Sciences Slurry ACIDOGENESIS Lactic acid fermentation |
| Zdroj: | Water Research Water Research, IWA Publishing, 2017, 124, pp.693-701. ⟨10.1016/j.watres.2017.08.017⟩ |
| ISSN: | 1879-2448 0043-1354 |
| DOI: | 10.1016/j.watres.2017.08.017⟩ |
| Popis: | International audience; Recycling phosphorus as struvite from pig slurry requires an acidification step to dissolve the inorganic solids containing most of the phosphorus. This study focused on the biological acidification of several pig slurries using sucrose as a model organic co-substrate. Lactic acid fermentation occurred systematically, dissolving 60'90% of TP (total phosphorus) and T-Mg (total magnesium) at pH 6 or lower. Optimal pH range for maximum P dissolution aimed at struvite recovery was 5.5'6. A simple model was developed correlating pH, sucrose and buffer capacity to optimize P dissolution and future recovery using real organic waste. © 2017 Elsevier Ltd |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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