The response
surface methodology (RSM) of chrysene removal was studied
using mixed microbial population. The effects of process factors such as initial
chrysene concentration, agitation rate and pH on chrysene removal were also
investigated. Maximum chrysene removal rates of 60 and 50% were achieved at
300rpm agitation rate and pH 8, respectively. The numerical optimization
process indicated that the optimum values for agitation rate, pH and initial
chrysene concentration were 334.3rpm, 8.8 and 40.6mg/l, respectively with desirability of
0.955.
The second order quadratic model was statistically significant for the chrysene
removal process with good agreement between R² (0.9642), adjusted R² (0.9320)
and predicted R² (0.8289). Finally, the results obtained from this study
highlighted the optimal conditions for chrysene removal from aqueous medium.
Bölüm | Chemistry |
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Yazarlar | |
Yayımlanma Tarihi | 1 Eylül 2018 |
Yayımlandığı Sayı | Yıl 2018 Cilt: 31 Sayı: 3 |