Before the construction of the digestion unit, the sludge produced by the East Alexandria wastewater treatment plant was subject to a dewatering process, followed by transportation via trucks ... Sludge treatment wastewater treatment Sludge digestion Anaerobic Biogas Digelis ... , the Construction Authority for Potable Water & Wastewater (CAPW} awarded SUEZ for the DBO contract of a new sludge digestion unit, based on mesophilic anaerobic digestion and Combined Heat & Power. Successfully ... sludge digestion unit, wastewater treatment plant Alexandria East (Egypt)...