下水道バイオマスからの電力創造システム実証事業

抄録

This demonstration study was entrusted by National Institute for Land and Infrastructure Management as B-DASH Project. (Breakthrough by Dynamic Approach in Sewage High Technology Project) In this study, we evaluated energy conservation effects as well as cost reduction effects by low-power-consumption incinerators and self-sustained combustion operation, and energy creation effects by power generation, using a demonstration facility constructed in 2013, which has an incineration capacity of 35 t-wet/day and a power generation capacity of 100 kW. As a result of this study, we achieved three innovative technological goals (water content reduction technology, energy recovery technology and energy conversion technology) and demonstrated power generation from sewage sludge incineration heat at a full-scale level. Based on case study results, it was also confirmed that power consumption of an entire sewage treatment plant could be reduced by about 30%, and maintenance and operation cost and greenhouse gas emissions could be greatly reduced by introducing this system technology into the sewage treatment plant of a certain scale or above. This report describes the operational states and various performances of the demonstration facility in 2014.