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International Journal of Engineering، جلد ۲۵، شماره ۳، صفحات ۱۸۱-۱۹۲
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عنوان انگلیسی Phenol Biodegradation Kinetics in the Presence of Supplimentary Substrate
چکیده انگلیسی مقاله Biodegradation of phenol in the presence of glucose as a supplementary substrate was investigated with mixed microbial consortium isolated from waste effluent of coke-steel factory. Batch experiments were carried out at room temperature and pH value of 7. Initial phenol and glucose concentrations were in the range of 25-1000 mg/l and 500-3000 mg/l, respectively. In a dual substrates system the concentration of supplementary source (glucose) was kept constant. It was obvious to find out that glucose as a simple carbon source was initially utilized in the presence of phenol. The rate of phenol degradation started once glucose concentration was significantly depleted. Phenol was known to be an inhibitory substrate, thus Haldane/Andrews kinetic model was applied to evaluate the growth kinetic parameters. The kinetic parameters, mm, Ks and Ki were 0.01 1/h, 27.04 and 127.55 mg/l, respectively. The specific growth rate of the culture in dual substrates system was expressed by SKIP model (R2> 0.951). The values of interaction parameters showed uncompetitive partially inhibition at high phenol concentration. 
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نویسندگان مقاله M. Khorami |
Chemical Eng., BNUT

Z. Bakhshi |
Civil Eng., BNUT

N. Mousavi |
Civil Eng, Noshirvani Uni. Tech.

Roya Pisgar |
Civil Eng, Noshirvani Uni. Tech.

Ghasem Najafpour |
Biochemical & Chemical Engineering, Noshirvani University of Technology, Babol

نشانی اینترنتی http://www.ije.ir/article_72006_4c21f0a3ad2c2b70a524160db8c89b62.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2063015.pdf
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