Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

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Electric Reduction and Advanced Treatment using AOSD

Electric Reduction and Advanced Treatment using AOSD

Water & Soil Water Quality Improvement / Water Management Technology Water Supply / Sewerage

Water & Soil Water Quality Improvement / Water Management Technology Small-scale Water Treatment Technology

The AOSD system enables the blower operation to be optimized and power consumption to be reduced. Biological nitrification/denitrification and dephosphorization reactions are enhanced, and removal of nitrogen and phosphorus in wastewater can be achieved. The device consists of luminescent dissolved oxygen (LDO)analyzer, programmable logic controller (PLC), and a computer. This is a multi-purpose technique for sewage water, industrial wastewater, and Johkaso (Not concentrated Domestic wastewater facilities). The optimum control system works similarly at water temperatures in frigid zones at 10°C and tropical zones above 30°C, and the power used for wastewater treatment was reduced(20-70%). This can therefore be applied internationally.