| 초록 |
Co-incineration of coal and wastewater sludge was performed in a 0.1MWth bench scale circulating fluidized bed combustor(CFBC). Sludge was received from a wastewater treatment plant in a dye industrial complex in Busan Metropolis. Moisture content of received sludge was 80%. Coal and sludge mixture was prepared with weight ratio of 90/10, 85/15 and 80/20. Co-combustion characteristics of the coal and sludge mixture demonstrated stable combustion conditions. Component analysis, incineration characteristics, boiler performance was measured before and after the test and application for commercial 59MWth CFBC boiler. The release of hazardous components such as SO2 and Cl was suppressed by the presence of inherent minerals of Ca, Na, K in coal and sludge mixture. Pre-drying was not essential but it was recommended for the benefits of manageability of sludge. |
