To demonstrate the energy use of the selected compressor scenarios
in an actual end-use process, the scenario characteristics
were applied in a compressor task of a waste-water treatment
plant (WWTP) in Lappeenranta, Finland. The amount of treated
waste water at the plant has ranged in recent years between
5400000 m3/a and 6800000 m3/a. At the example plant, compressed
air is required in two active sludge tanks, both of which
can be described as a primary process for the compressed air.
Besides the primary process, compressed air is delivered to sand
separation, septic tank, and mixing and stabilization basins, all of
which can be described as supporting processes. The layout of
the compressed air system at the plant is shown in
To demonstrate the energy use of the selected compressor scenariosin an actual end-use process, the scenario characteristicswere applied in a compressor task of a waste-water treatmentplant (WWTP) in Lappeenranta, Finland. The amount of treatedwaste water at the plant has ranged in recent years between5400000 m3/a and 6800000 m3/a. At the example plant, compressedair is required in two active sludge tanks, both of whichcan be described as a primary process for the compressed air.Besides the primary process, compressed air is delivered to sandseparation, septic tank, and mixing and stabilization basins, all ofwhich can be described as supporting processes. The layout ofthe compressed air system at the plant is shown in
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