title: Optimization of anaerobic co-digestion of olive mill wastewater and liquid poultry manure in batch condition and semi-continuous jet-loop reactor.
abstract: Anaerobic co-digestion of olive mill wastewater (OMW) with liquid poultry manure (LPM) was investigated in a jet-loop reactor (JLR) as a new approach for upgrading the efficiency of bioprocess. Optimum proportion of LPM was evaluated by determining biochemical methane potential. Methane yields were compared by applying one way ANOVA method followed by post hoc Tukey's test with a 0.05 significance level. Results demonstrated that the addition of LPM at proportion of 10% and 30% (v/v) improved methane yield of OMW digestion but differences between these mixtures and raw OMW are not significant. JLR results confirmed that the proportion 30% LPM gives the optimum condition for excellent stability of digester. Methane production was significantly high until an organic loading rate of 9.5 gCOD/L reactor/day. Overall; this study indicates the technical feasibility and effectiveness of using JLR as one-stage anaerobic system for the co-digestion of OMW and LPM.
authors: Laboratoire des Bioprocédés Environnementaux, Centre de Biotechnologie de Sfax, BP"1177", Sfax, Tunisia. Electronic address: sonia.khoufi@cbs.rnrt.tn.
authors: Sonia
authors: S
authors: Khoufi
authors: Laboratoire des Bioprocédés Environnementaux, Centre de Biotechnologie de Sfax, BP"1177", Sfax, Tunisia.
authors: Assawer
authors: A
authors: Louhichi
authors: Laboratoire des Bioprocédés Environnementaux, Centre de Biotechnologie de Sfax, BP"1177", Sfax, Tunisia.
authors: Sami
authors: S
authors: Sayadi
mesh_terms: D000693:Anaerobiosis; D000818:Animals; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D004867:Equipment Design; D005525:Food-Processing Industry; D007220:Industrial Waste; D008372:Manure; D008697:Methane; D031658:Olea; D011200:Poultry; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods*; D062065:Wastewater
chemical_list: D007220:Industrial Waste; D008372:Manure; D008697:Methane; D062065:Wastewater
keywords: Anaerobic jet-loop reactor; Co-digestion; Liquid poultry manure; Methane yield; Olive mill wastewater