Enhanced Phosphorus Removal in a Waste Stabilization Pond System With Blast Furnace Slag Filters

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• Título: Enhanced Phosphorus Removal in a Waste Stabilization Pond System With Blast Furnace Slag Filters
• Autor: Camargo Valero, Miller Alonso; Mara, David Duncan
• Publicación original: 2007
• Descripción física: PDF
• Nota general:
  • In this work a tertiary horizontal-flow blast furnace slag (BFS) filter was tested for phosphorus removal under laboratory and field conditions. Laboratory experiments were conducted in a bench-scale BFS filter for phosphorus adsorption capacity at equilibrium conditions using P-spiked water. On-site, the performance of a pilot-scale BFS filter was monitored for phosphorus removal from the final effluent of a pilot-scale WSP system located in Esholt (Bradford, UK), which comprises a primary facultative pond and a secondary aerated rock filter (ARF) in series.
    Adsorption capacity (q) results showed that BFS has high affinity for inorganic P species and it can remove up to 30 g P/kg BFS; however, q values are strongly dependent on the initial P concentration. The pilot-scale BFS filter tested on-site performed better for longer (<2 mg P/L) than the laboratory-scale filter, even though despite the latter received the same hydraulic and P loadings (1.8 m3/m3 d and 18 g P/m3 d, respectively). Both the laboratory and field results showed that BFS filters are an appropriate low-cost technology to upgrading small wastewater treatment systems for phosphorus removal.
• Notas de reproducción original: Digitalización realizada por la Biblioteca Virtual del Banco de la República (Colombia)
• Notas:
  • Resumen: Blast furnace slag filter; Domestic wastewater; Phosphorus removal; Waste stabilization ponds
  • © Derechos reservados del autor
  • Colfuturo
• Forma/género: texto
• Idioma: inglés
• Institución origen: Biblioteca Virtual del Banco de la República
• Encabezamiento de materia:
  • Tecnología; Tecnología / Ingeniería y operaciones afines