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Biochemical kinetic behaviors between n-butyl acetate and composite bead in biofilter

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Abstract

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 °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 °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 °C.

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Acknowledgement

The authors wish to thank the National Science Council of the Republic of China for financial aid through the project, NSC 92-2211-E-216-006.

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Correspondence to Wu-Chung Chan.

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Chan, W., Hwang, I. Biochemical kinetic behaviors between n-butyl acetate and composite bead in biofilter. Appl Microbiol Biotechnol 73, 226–233 (2006). https://doi.org/10.1007/s00253-006-0471-x

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Keywords

  • Granular Activate Carbon
  • Operation Temperature
  • Filter Material
  • Inlet Concentration
  • Elimination Capacity