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제목   [12.12월] 황석환 교수 연구실 Effects of temperature and pH on the biokinetic   이름  카야솔루션
날짜  2012-12-26 11:04:51 조회  1651 추천  0
첨부  

Effects of temperature and pH on the biokinetic properties of thiocyanate biodegradation under autotrophic conditions

 

Authors: Jaai  Kim , Kyung-Jin  Cho , Gyuseong  Han , Changsoo  Lee* , Seokhwan  Hwang*


 Abstract

The simultaneous effects of temperature and pH on the biokinetic properties of thiocyanate biodegradation under mixed-culture, autotrophic conditions were investigated using response surface analysis (RSA) combined with biokinetic modeling. A partial cubic model, based on substrate inhibition biokinetics, was constructed for each kinetic coefficient in Andrew model (i.e., maximum specific growth rate (μm), saturation coefficient (KS), and substrate inhibition coefficient (KSI)). Each model proved statistically reliable to approximate the responses of the kinetic coefficients to temperature and pH changes (r2 > 0.8, p < 0.05). Overall, the response surface models able to describe the biokinetic effects of temperature and pH on thiocyanate biodegradation within the explored region (20–30 °C and pH 6.0–9.0) were successfully constructed and validated, providing fundamental information for better process control in thiocyanate treatment.

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