(广东工业大学 环境科学与工程学院，广州 510006)
摘 要: 采用自制SBR系统研究不同基质与苯胺黑药的共代谢特性。结果表明：在不同基质种类和比例条件下，SBR系统的好氧反应时间为3 h，反应过程均可基本完成；几种不同共代谢基质促进苯胺黑药降解效率从高到低的顺序为蔗糖、乙酸钠、葡萄糖、淀粉和维生素C；当基质与苯胺黑药的质量比为1:1时，苯胺黑药的降解效率最高；以蔗糖为共代谢基质的出水COD为70 mg/L，去除率达到87.3%，苯胺黑药出水浓度为3.7 mg/L，降解率达到98%；以蔗糖与乙酸钠作为混合基质时，出水COD为84.70 mg/L，COD去除率为84.6%，苯胺黑药浓度为13.55 mg/L，苯胺黑药降解率为93.23%；对胺黑药与蔗糖质量比为1:1时的实验数据进行动力学分析，得到动力学参数米氏常数Km=(1.600 8±0.080) mg/L、vmax=(0.264±0.006) mg/(L·min)。
关键字: 苯胺黑药；共代谢；SBR；动力学
（School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China）
Abstract:Self-made sequencing batch reactor (SBR) was used to study the co-metabolism characteristics of aniline aerofloat with different substrates. The results show that the aerobic reaction process can be completed in 3 h regardless of substrate sort and the ratio of aniline aerofloat to substrate; the order of promoting degradation from high to low is as follows: sucrose, sodium acetate, glucose, amylum and vitamin C. When the mass ratio of aniline aerofloat to substrate is 1:1, the degradation efficiency of the aniline aerofloat is the highest, the COD in the effluent is 70 mg/L. When co-metabolism substrate is sucrose, the removing rate of COD is 87.3%, the concentration of aniline aerofloat in the effluent is just 3.7 mg/L and the degradation rate reaches 98%. The COD and aniline aerofloat in the effluent is 84.7 mg/L and 13.55 mg/L respectively when sucrose and sodium acetate are mixed as the compound substrate, 84.6% of COD is removed, and 93.23% of aniline aerofloat is degraded. The modified Michaelis-Menten equation was used to analyze the data at mass ratio of aniline aerofloat to substrate being 1:1 from the sucrose experiment, and the kinetics parameters are obtained as Km (1.600 8±0.080) mg/L and vmax (0.264±0.006) mg/(L·min).
Key words: aniline aerofloat; co-metabolism; sequencing batch reactor; kinetics
