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Land treatment of olive oil mill wastewater

AuthorsCabrera, Francisco ; López Núñez, Rafael ; Martínez-Bordiú y Ortega, A.; Dupuy Lome, E. de; Murillo Carpio, José Manuel
Issue Date1996
CitationInternational Biodeterioratio & Biodegradation 38(3-4): 215- 225 (1996)
AbstractExperiments carried out in lysimeters filled with two calcareous clayey soils (ca 40% CaCO3; ca 40% clay), showed that a 2m layer of soil almost completely removed the organic and inorganic components of olive oil mill wastewater (OMW) when it was applied in doses of 5000-10000m3ha-1year-1. This efficiency was maintained for at least 2 years. In field experiments, the application of OMW to one of these soils during three successive years at an annual rate of up to 6000m3ha-1 caused changes in some chemical properties of the soil, especially in the upper layer (0-50cm). Concentrations of soil organic matter, Kjeldahl N, soluble NO3 and available P increased enhancing soil fertility. On the other hand, soil electrical conductivity and sodium adsorption ratio also increased but below the levels representing salinization or sodification hazard for the soil. Furthermore, leaching of Na+ and NO3 - below the 1m layer were detected. © 1997 Elsevier Science Limited. All rights reserved.
Identifiersdoi: 10.1016/S0964-8305(96)00054-6
issn: 0964-8305
Appears in Collections:(IRNAS) Artículos
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