【摘要】 采用新型铁碳微电解填料预处理船舶含油压舱水,通过单因素和正交实验,考察Fe/C投加量、电解时间、pH及曝气量条件下对COD和油含量的去除效果,并确定出最佳条件。实验结果表明,静态实验下各影响因素最佳条件为Fe/C投加量为200 g·L^-1,电解时间为120 min,pH为4和曝气量为20 L·min^-1,此时COD和油去除率分别达到77.96%和81.83%;影响因素主次顺序依次为Fe/C投加量>电解时间>曝气量>pH。铁碳微电解对有机物去除符合一级反应动力学,动力学方程为y=0.012 09 x+0.049 67,相关系数R²为0.949 4。更多还原

【Abstract】 In this work, the ship oil-bearing ballast water was treated by a new type of Fe-C microelectrolysis filler. The effects of Fe-C dosage, electrolytic time, pH and aeration amount on COD and oil removal were studied. The optimum conditions were determined through the single factor experiment and orthogonal test. The results showed that the highest removal efficiencies of COD and oil could reach up to 77.96% and81.83% when Fe-C dosage is 200 g·L^-1, electrolytic time is 120 min, pH is 4 and aeration amount is 20 L·min^-1, respectively. Besides, the influence of these factors followed the order of Fe-C dosage>electrolytic time>aeration amount >pH. In addition, organics removal of Fe-C microelectrolysis followed the first-order kinetic reaction equation y=0.012 09 x+0.049 67, and the correlation coefficient R² was 0.949 4.更多还原