The industrial WWTP of Komotini is processing wastewater from local industries (dairy, brewery, paper industries etc.) with an average influent of 2000-2500 m3/d and a fluctuating COD from 1600 to 3600 mg/L. The TSS in the influent can also be high, reaching up to 2500 mg/L
The industrial WWTP of Patras, which is receiving wastewater from local industries has an average influent flowrate of 3,300 m3/d and COD of 955 mg/L. The plant was producing excess sludge that was ranging from 135 to 266 tons per month which needed to be reduced due to the high expenses of decanter operation and sludge disposal
In January 2014, Alpha-Bioenergy and the municipal wastewater treatment facilities of Patras started cooperating for the reduction of the produced sludge. The municipality was searching for a way to minimize the sludge produced in the facilities due to high cost of disposal.
In October 2014, the municipality of Kastoria and Alpha-Bioenergy agreed in the pilot application of bio-augmentation in the wastewater treatment facilities of the town. The application is continuing until today. The plant has an average flowrate of 8000 m3/d which is fluctuating due to heavy seasonal rains (12000-15000 m3/d)
The implementation of the bioaugmentation process in the Heraklion city WWTP commenced in August of 2015 and is still running. Heraklion WWTP, receives wastewater from the Municipality of Heraklion, the fourth most populated city of Greece and biggest city of the island of Crete