Influence of different aerobic pretreatments on the kinetics of anaerobic digestion of olive mill wastewater

Kinetics of Biogas Production from Banana Stem Waste

“…As can be seen in Table 3, when the biomass in the bioreactor concentration (X) increased from 0.23 g/l to 0.93 the δ increased from 0.085 to 0.109 was, therefore, multiplied by a factor of 1.3. A similar behaviour was observed in the anaerobic digestion process of traditional olive mill wastewaters (Borja et al, 1995). In this work, the minimum hydraulic retention time, θ min (days), at which the washout of the micro-organisms occurs was: 9.04 days.…”

Olive Oil Mill Waste Treatment:Improving the Sustainability of the Olive Oil Industry with Anaerobic Digestion Technology

“…Martín et al, (1991) obtained methane yields of 260 mL CH 4 g -1 COD for 3POMWW. Borja et al (1995b) improved the methane production using a pre-treatment stage with Geotrichum candidum, Azotobacter Chroococcum and Aspergillus terreus. The latest study reported methane yield coefficients of 300 (Geotrichum-pretreated 3POMWW), 315 (Azotobacter-pretreated 3POMWW) and 350 (Aspergillus-pretreated 3POMWW) mL CH 4 g -1 COD against the 260 mL CH 4 g -1 COD obtained for the untreated 3POMWW.…”

Adsorption heat pumps for providing coupled heating and cooling effects in olive oil mills

“…Various methods have been proposed to solve this problem. To name a few, physico-chemical methods involving the use of processes, such as flocculation, coagulation, filtration, open evaporating ponds and incineration [2,3], biological processes depending on the aerobic or aneorobic treatment of the wastewater [4,5], a method involving the co-composting of the wastewater with solid residues from the olive oil processing [6] and the electrochemical treatment of the wastewater [7] have been tested. Some of these methods are ineffective or expensive.…”