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One of the main environmental issues of society today is the continuous increase in the amount of organic waste. Sustainable organic waste management no longer supports old practices that involved uncontrolled releases, landfill storage or incineration. A potential solution is converting organic matter into energy. Previous papers dealt with energy recovery of animal proteins and fats from tanneries into biogas and biodiesel after separation of the two components by pressing-centrifugation at temperatures of 60-80...

Water serves as a medium for fundamental process phases (e.g. tanning and dyeing) in leather production. The reduction of water consumption per product unit has been an environmental priority for European tanners over the years. This is possible mainly through the setting of continuous improvement objectives aiming at developing water efficient processes and water recycling technologies. The paper analyses the pickling operation, for bovine hides processing. The aim is to develop an automation system which will re...