The plant design is following our classic philosophy applied for paper machine wastewater with high organic charge: Deltafloat for primary sedimentation, buffer tank, cooling tower, anaerobic reactor with relevant biogas buffer and flare, followed by aerobic section with AST (Activated Sludge Treatment), a final sedimentation unit for biological sludge separation, tertiary treatment with filtration and mechanical sludge dewatering with a gravity table and a sludge press.