Assessment of biogas and biofertilizer produced from anaerobic co-digestion of olive mill wastewater with municipal wastewater and cow dung

摘要: Abstract Morocco as a part of Mediterranean countries is threatened by the tremendous quantities dejected different organic wastes. Without any treatment or management strategy, these wastes are dumped illegally in large and can affect natural resources, especially soil water. Recently, it seems that anaerobic co-digestion method one best processes available to treat The aim this work investigate reduction toxicity after three mixture waste based on olive mill wastewater (OMW), domestic (DW) cow dung (CD)), bioreactors (B1: OMW+DW/B2: OMW+DW+CD/B3: OMW+CD). efficiency process was evaluated through digestates quality bio-fertilizers using phytotoxicity test, their characterizations Fourier-transform infrared spectroscopy (FTIR) Scanning Electronic Microscopy SEM, also biogas yield during process. highest volume obtained from bioreactor B2 (476.69 mL CH4 g-1 VS); OMW, DW CD (1/1/1). Phytotoxicity test indicated reduced slightly substrates. FTIR spectra SEM images confirmed successfully carried out microstructural changes Principal component analysis (PCA), Spearman correlations cluster were combined between produced all physical–chemical biological parameters, which unstable.