Anaerobic Digestion The first anaerobic digester was built by a leper colony in Bombay, India, in 1859 Series of processes in which microorganisms break down biodegradable material in the absence of oxygen Methane-forming bacteria Archaebacteria - extremophiles Oxygen-sensitive About 50 species of methane-forming bacteria Anaerobic Digestion ...[PDF]Get Price
Combination of Dry Milling and Separation Processes with Anaerobic Digestion of Olive Mill Solid Waste: Methane Production and Energy Efficiency Doha Elalami 1,2,3, Hélène Carrère 1,*, Karima Abdelouahdi 2, Abdallah Oukarroum 3, Driss Dhiba 3, Mohamed Arji 4 and Abdellatif Barakat 5Get Price
Olive mill wastewater (OMW) is the effluent resulting from olive oil producing processes. Due to their high COD loading rates and content of toxic phenolic compounds, OMWs have to be decontaminated before being discharged [1,2].Get Price
Effect of HRT on biogas composition during batch and semi-continuous digestion of olive pomace at 10% TS. Effect of HRT on methane production rate during batch and semi-continuous digestion of olive pomace at 10% TS. was investigated using anaerobic digesters of 1 .
In this study we have investigated, on a laboratory scale, the anaerobic co-digestion of olive mill wastewater (OMW) with olive mill solid waste (OMSW) using semi-continuous, feeding, tubular digesters operated at mesophilic temperatures.Get Price
Process Biochemistry 40 (2005) 139–145 Evaluating process imbalance of anaerobic digestion of olive mill wastewaters Tahar Mechichi∗, Sami Sayadi Laboratoire des Bioprocédés, Centre de Biotechnologie de Sfax BP "K", 3038 Sfax, Tunisia Received 18 July 2003; accepted 26 November 2003 Abstract Process control measures are of critical importance which guard against process instability ...Get Price
Anaerobic digestion is a promising technology since it allows the conversion of a considerable fraction of the chemical energy of effluent into a renewable energy source (biogas). A packed bed material was developed and tested in our laboratory in order to avoid working troubles related .[PDF]Get Price
Anaerobic digestion of municipal wastewat er sludge has been widely practiced since the early 1900s and is the most widely used sludge treatment method. Overall, the process converts about 40% to 60% of the organic solids to methane (CH4) and carbon dioxide (CO2). The chemical composition of the gas is 60-65% methane,[PDF]Get Price
The olive mill waste (OMW) generated from olive oil extraction process constitutes a major environmental concern owing to its high organic and mineral matters and acidic pH. Anaerobic digestion (AD) is a main treatment for reducing the organic matter and toxic substances contained in OMW and generating at the same time, energy in the form of biogas.[PDF]Get Price
Abstract. Olive oil mill effluents (OME) are of great concern worldwide dueto their role as pollutants. This work studies, on a laboratoryscale, the possibility of reducing the polluting load of olivewastewaters (organic, acid and polyphenolic) through chemical-physical processes (sedimentation-filtration) followedby a biological treatment (anaerobic digestion).Get Price
Anaerobic co-digestion of olive mill wastewater with olive mill solid waste in a tubular digester at mesophilic temperature [An article from: Bioresource Technology] by F. Boubaker and Cheikh Ridha, B.[PDF]Get Price
This catalytic pre-treatment process of OMW was efficient for anaerobic digestion. Because phenolic compounds are toxic for methanogenic bacteria many problems concerning the high toxicity and biodegradability of the olive oil mill wastewater (OMW) have been encountered during anaerobic treatments of this effluent.Get Price
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The continuous co-digestion of this mixture was tested under mesophilic (37 °C) and thermophilic (55 °C) conditions using an upflow anaerobic filter (UAF). The organic loading rates (OLRs) which could be achieved during the co-digestion were higher than those obtained during the anaerobic treatment .Get Price
The biogas production potential of different mixtures of cow manure (CM) and three-phase olive mill solid waste (3POMSW) at 37°C was evaluated. Results showed that .Get Price
Besides thermochemical processes, anaerobic digestion produces energy through the biological conversion of organic matter into biogas. It has low nutrient and energy requirements, reduces waste volume and even stabilises it. Anaerobic digestion could therefore represent a .Get Price
This catalytic pre-treatment process of OMW was efficient for anaerobic digestion. Because phenolic compounds are toxic for methanogenic bacteria many problems concerning the high toxicity and biodegradability of the olive oil mill wastewater (OMW) have been encountered during anaerobic treatments of this effluent.
Anaerobic digestion, chemical process in which organic matter is broken down by microorganisms in the absence of oxygen, which results in the generation of carbon dioxide (CO2) and methane (CH4). Materials high in organic content, such as municipal wastewater, livestock waste, agricultural waste,Get Price
The continuous co-digestion of this mixture was tested under mesophilic (37 °C) and thermophilic (55 °C) conditions using an upflow anaerobic filter (UAF). The organic loading rates (OLRs) which could be achieved during the co-digestion were higher than those obtained during the .Get Price
Copper, Pillared Clay, Wet Hydrogen Peroxide Catalytic Oxidation, Anaerobic Digestion 1. Introduction The olive oil industries are an important economic activity of many countries particularly throughout the Medi-terranean Sea, with a world production that passes beyond 106 tons/year . However, during olive oil produc-tion large quantities of strongly polluted waters, known as olive oil mill wastewaters (OMW), .