Evaluation of Ultrafiltration Performance of Anaerobic Digestate form Thin Stillage after Centrifugation

K. Meixner, B. Drosg, C. Loderer, G. Bochmann, T. Valkova, K. Svardal & W. Fuchs
At a grain bioethanol plant thin stillage is one of the most interesting stillage fractions for energy recovery by biogas production. However, by anaerobic digestion an effluent digestate is produced for which it is necessary to establish suitable utilisation concepts. Digestate treatment by ultrafiltration can be a viable solution to produce process water or a liquid which can be further purified. This study evaluates the performance of membrane filtration by a ceramic ultrafiltration membrane at...