A STUDY ON CO₂ EMISSION REDUCTION POTENTIAL OF WASTEWATER TREATMENT PLANTS BY WIDE AREA COOPERATION AND HIGH EFFICIENCY TECHNOLOGIES.

Abstract

 For the model area, we comprehensively evaluated the energy saving / energy production and GHG reduction measures for the potential of reducing GHG emissions by wide area cooperation and high efficiency technologies using a sewage treatment plant simulator. In the wide area cooperation measures, the integration of village wastewater treatment facilities would decrease to 7,000 kg/day, reduction of 31.4% and the integration of urine treatment plant would decrease to 6,500 kg/day, reduction of 43.5%. As for hige efficiency measures, energy saving measures were reduced to 16,700 kg/day, reduction of 8.2%. Energy production measures reduced to 14,900 kg/day due to the increase in power generation, reduction of 18.1%. As a GHG reduction measure, the fuel reduction would reduced to less than half, resulting in a reduction of 15,400 kg/day, reduction of 15.4%. The incinerator N₂O generation rmeasure which was the largest reduction effect, would reduce to 12,500 kg/day, reduction of 31.3%. GHG emissions in the model area would be expected to be reduced by 57.3% from the current 36,500 kg/day. It was considered necessary to develop and implement further energy-saving and energy-production technologies.