Chan Wu-Chung, Hwang I-Da
Civil Engineering Department, Chung-Hua University, Hsinchu, Taiwan, 30067, Republic of China.
Appl Microbiol Biotechnol. 2006 Nov;73(1):226-33. doi: 10.1007/s00253-006-0471-x. Epub 2006 May 31.
In this study, the kinetic behaviors between n-butyl acetate and composite bead were investigated. Both microbial growth rate and biochemical reaction rate would be inhibited with increasing average inlet concentration. The order of the inhibitive effect, which resulted from increased average inlet concentration for four operation temperatures, was 30>35>40>25 degrees C. Both microbial growth rate and biochemical reaction rate would be enhanced and inhibited with increasing operation temperature in the operation temperature ranges of 25 to 30 and 30 to 40 degrees C, respectively. The enhancing and inhibitive effects resulting from increased operation temperature were the most pronounced at the average inlet concentration of 200 ppm. The values of maximum reaction rate V (m) and half-saturation constant K (s) ranged from 0.011 to 0.047 g C h(-1) kg(-1) packed material and from 19.30 to 62.40 ppm, respectively. The zero-order kinetic with the diffusion rate limitation could be regarded as the most adequate biochemical reaction kinetic model. The values of maximum elimination capacity ranged from 0.51 to 0.20 g C h(-1) kg(-1) packed material, and the optimal maximum elimination capacity of biofilter occurred at the operation temperature of 30 degrees C.
本研究考察了乙酸丁酯与复合珠粒之间的动力学行为。随着平均进口浓度的增加，微生物生长速率和生化反应速率均会受到抑制。在四个操作温度下，由平均进口浓度增加所导致的抑制作用顺序为30℃＞35℃＞40℃＞25℃。在25至30℃和30至40℃的操作温度范围内，微生物生长速率和生化反应速率分别会随着操作温度的升高而增强和受到抑制。操作温度升高所产生的增强和抑制作用在平均进口浓度为200 ppm时最为显著。最大反应速率V（m）和半饱和常数K（s）的值分别在0.011至0.047 g C h(-1) kg(-1) 填充材料和19.30至62.40 ppm范围内。具有扩散速率限制的零级动力学可被视为最合适的生化反应动力学模型。最大去除能力的值在0.51至0.20 g C h(-1) kg(-1) 填充材料范围内，生物滤池的最佳最大去除能力出现在30℃的操作温度下。
