Anaerobic treatment of olive mill wastes in batch reactors

Abstract Anaerobic treatment of olive oil mill wastes, namely black water and prina, was investigated in batch reactors. Biochemical methane potential (BMP) tests were conducted to determine the anaerobic biodegradability of black water and/or prina. With these BMP tests the biodegradability of olive mill wastes (OMWs) at different initial chemical oxygen demand (COD) concentrations and corresponding methane gas productions were investigated. Furthermore, a screening study was performed to determine the most important nutrients for the anaerobic digestion of black water. The results indicated that OMWW could be treated anaerobically with high efficiencies (85.4–93.4%) and treatment of 1 l olive mill waste waters (OMWW) by anaerobic methods resulted in production of 57.1±1.5 l of methane gas. Anaerobic treatment of the olive mill residual solids (OMRS) alone was poor; however, when OMRS was mixed with OMWW in certain ratios, OMRS could be treated efficiently under anaerobic conditions. Anaerobic cultures needed an adaptation period of 15–25 days for treatment of OMRS with and without OMWW.

[1]  L. Madrid,et al.  Solubilization of heavy metals from a river sediment by a residue from olive oil industry , 1992 .

[2]  C. Banks,et al.  Anaerobic digestion of wash waters derived from the purification of virgin olive oil using a hybrid reactor combining a filter and a sludge blanket , 1996 .

[3]  Göksel N. Demirer,et al.  Anaerobic biotransformation of four3-carbon compounds (acrolein, acrylic acid, allyl alcohol and n-propanol) in UASB reactors , 1998 .

[4]  Richard E. Speece,et al.  Anaerobic Biotechnology for Industrial Wastewaters , 1996 .

[5]  D. Georgacakis,et al.  Controlled anaerobic digestion of settled olive-oil wastewater , 1993 .

[6]  Antonio M. Martin,et al.  Enhancement of the anaerobic digestion of olive mill wastewater by the removal of phenolic inhibitors , 1992 .

[7]  N. Zouari,et al.  Toxic effect of coloured olive compounds on the anaerobic digestion of olive oil mill effluent in UASB-like reactors , 1996 .

[8]  N. Gharsallah.  Influence of dilution and phase separation on the anaerobic digestion of olive mill wastewaters , 1994 .

[9]  F. Bonemazzi,et al.  Interaction between acidogenesis and methanogenesis in the anaerobic treatment of olive oil mill effluents , 1996 .

[10]  M. Hamdi.  Anaerobic digestion of olive mill wastewaters , 1996 .

[11]  P. Mccarty,et al.  Bioassay for monitoring biochemical methane potential and anaerobic toxicity , 1979 .

[12]  Izzet Ozturk,et al.  Anaerobic treatment of olive mill effluents , 1997 .

[13]  Irini Angelidaki,et al.  Modelling anaerobic codigestion of manure with olive oil mill effluent , 1997 .

[14]  A. E. Greenberg,et al.  Standard methods for the examination of water and wastewater : supplement to the sixteenth edition , 1988 .

[15]  B. Gombert,et al.  Destruction of pollutants in industrial rinse waters by advanced oxidation processes , 1997 .

[16]  Ignazio Marcello Mancini,et al.  Anaerobic Digestion of Olive Oil Mill Effluent Pretreated and Stored in Municipal Solid Waste Sanitary Landfills , 1993 .

[17]  S. P. Tsonis,et al.  Anaerobic Treatability of Olive Oil Mill Wastewater , 1993 .

[18]  L. Liberti,et al.  Influence of Na and Ca alkalinity on UASB treatment of olive mill effluents. I: Preliminary results , 1988 .

[19]  C. Banks,et al.  Influence of different aerobic pretreatments on the kinetics of anaerobic digestion of olive mill wastewater , 1995 .