No.1-10 排煙脱硫排水中難処理性COD 成分の分析

抄録

Some thermal power plants experience problems due to increasing chemical oxygen demand (COD) and total nitrogen concentration (T-N) in flue gas desulfurization (FGD) wastewater. Nitrogen-Sulfur (NS) compounds are speculated as the cause of increasing COD and T-N. However, even the current emissions of NS compounds are not understood because a analysis method of NS compounds with high sensitivity and accuracy has not been reported. Herein, we report the development of an analysis method for NS compounds. Furthermore, characteristic features of dissolved organic matter in FGD wastewater as the COD components were analyzed by LC-OCD and excitation-emission matrix.