Alexandros Aivasidis

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Fuzzy cognitive networks (FCN) are extensions of the well known fuzzy cognitive maps (FCM) so that they operate in direct interconnection with the system they describe. This paper explores the ability of FCNs to control an anaerobic digestion process of a wastewater treatment plant. The design of the appropriate FCN to simulate the operation of the process(More)
The present paper focuses on a largely unexplored field of landfill-site valorization in combination with the construction and operation of a centralized olive mill wastewater (OMW) treatment facility. The latter consists of a wastewater storage lagoon, a compact anaerobic digester operated all year round and a landfill-based final disposal system. Key(More)
A two-stage lab-scale UASB reactor, incorporating a selector-type UASB prior to the main reactor was operated at 37 degrees C with an easily biodegradable food wastewater having a COD of 3,000 mg/L. Varying the hydraulic retention time from 25 to 5 h, the removal of COD by the two-stage process was higher than 95%. Effluent soluble COD was consistently(More)
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