【摘要】 应用Monod、Tessier和Moser模型,对菌株XZ(Bacillus)降解合成制药废水的试验数据进行非线性回归分析。结果表明:3种模型均可以用于模拟XZ降解制药废水过程中的生物量增长及污染物基质的降解;其中Moser模型对数据的拟合度最好;应用Monod模型得到的动力学参数qmax和Ksq分别为0.105 h-1和1 846.3 mg/L,证明XZ具有对该制药废水的高降解性和高适应性。动力学参数可以推算降解极限浓度Smin与产率系数YT和YN,进而用于制药废水生物处理反应器的优化和设计。更多还原

【Abstract】 Models of Monod,Tessier and Moser were applied to simulate the biodegradation of pharmaceutical wastewater by strain XZ(Bacillus),the experimental parameters were analyzed through nonlinear regression method.The results showed: the said 3 models were all appropriate for the simulation of both the microbial growth of XZ and the pollutant-substrate biodegradation;Moser model reflected the best fit to the experimental data;the values of kinetic parameters of Monod model qmax,Ksq were 0.105 h-1,1 846.3 mg/L respectively,which showed that XZ had high degradability and adaptability to the said pharmaceutical wastewater.The kinetic parameters acquired could be used to predict the threshold concentration Smin and yield coefficient YT and YN,and moreover,to optimize the design of the bioreactor for the pharmaceutical wastewater treatment.更多还原