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Energy valorization of industrial biomass: Using a batch frying process for sewage sludge

Abstract : This paper studies the energy valorization of sewage sludge using a batch fry–drying process. Drying processes was carried out by emerging the cylindrical samples of the sewage sludge in the preheated recycled cooking oil. Experimental frying curves for different conditions were determined. Calorific values for the fried sewage sludge were hence determined to be around 24 MJ kg−1, showing the auto-combustion potential of the fried sludge. A one-dimensional model allowing for the prediction of the water removal during frying was developed. Another water replacement model for oil intake in the fried sewage sludge was also developed. Typical frying curves were obtained and validated against the experimental data.
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M.H. Romdhana, Anwar Hamasaiid, Bruno Ladevie, Didier Lecomte. Energy valorization of industrial biomass: Using a batch frying process for sewage sludge. Bioresource Technology, Elsevier, 2009, 100 (15), pp.3740 - 3744. ⟨10.1016/j.biortech.2009.01.043⟩. ⟨hal-01651372⟩

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