title: Assessment of the anaerobic acidogenesis of wet olive cake from a two-phase olive oil mill.
abstract: A study of the anaerobic acidogenesis of wet olive cake or olive mill solid waste (OMSW) from the two-phase olive oil mill industry was carried out. Eight different hydraulic retention times (HRTs) ranging from 50.0-10.7 days were studied. An increase of 935.7 % in total volatile fatty acids (VFA) over the initial acidic concentration in the OMSW (1.4 g L(-1) expressed as acetic acid) was achieved. The results showed a maximum total VFA generation rate of 5.05 g COD L(-1)d(-1), this rate being achieved at the same hydraulic retention time as the maximum acetic acid production (8.2 g L(-1)) and as the maximum acidification degree (34.4 %).
authors.affiliation: Instituto de Grasa (CSIC), Sevilla, Spain. brlloren@cica.es
authors.forename: Bárbara
authors.initials: B
authors.lastname: Rincón
authors.forename: Rafael
authors.initials: R
authors.lastname: Borja
mesh_terms: D019342:Acetic Acid / Q000032:analysis; D001421:Bacteria, Anaerobic / Q000378:metabolism*; D057919:Biological Oxygen Demand Analysis; D002498:Centrifugation; D002849:Chromatography, Gas; D005232:Fatty Acids, Volatile / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D000069463:Olive Oil; D010938:Plant Oils / Q000737:chemistry* / Q000378:metabolism; D012037:Refuse Disposal / Q000379:methods*; D013997:Time Factors; D014866:Waste Products / Q000032:analysis*
chemical_list: D005232:Fatty Acids, Volatile; D000069463:Olive Oil; D010938:Plant Oils; D014866:Waste Products; D019342:Acetic Acid