TY  - JOUR
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859975509&doi=10.1007%2fs13762-012-0040-z&partnerID=40&md5=27d3c65e7f458fdd46232424ef063ed5
IS  - 2
SP  - 371
N1  - cited By 30
Y1  - 2012///
A1  - Akhbari, A.
A1  - Zinatizadeh, A.A.L.
A1  - Mohammadi, P.
A1  - Mansouri, Y.
A1  - Irandoust, M.
A1  - Isa, M.H.
ID  - scholars3034
SN  - 17351472
TI  - Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
AV  - none
JF  - International Journal of Environmental Science and Technology
VL  - 9
N2  - In this study, kinetics of biological carbon, nitrogen, and phosphorous removal from a synthetic wastewater in an integrated rotating biological contactor-activated sludge system was investigated. The experimental data obtained from varying four significant independent factors viz., hydraulic retention time, chemical oxygen demand for nitrogen to phosphorus ratio, internal recirculation from aerobic to anoxic zone and disks rotating speed were used for the process kinetic modeling. In order to obtain the bioprocess kinetic coefficients, Monod, first-order and Stover-Kincannon models were employed. As a result, Monod and Stover-Kincannon models were found to be the appropriate models to describe the bioprocess in the rotating biological contactor-activated sludge system as the determination coefficient for the first-order model obtained less than 0. 79. According to the Monod model, growth yield, microbial decay rate, maximum specific biomass growth rate, and half-velocity constant coefficients were found to be 0. 712 g VSS/g COD, 0. 008/d, 5. 54/d and 55 mg COD/L, respectively. From Stover-Kincannon model, the maximum total substrate removal rate constant and half-velocity constant were determined as 15. 2, 10. 98, 12. 05 g/L d and 14. 78, 7. 11, 6. 97 mg/L for chemical oxygen demand, nitrogen and phosphorus removal, respectively. The kinetic parameters determined in this study can be used to improve the design and operation of the biological contactor-activated sludge system in full scale. © 2012 CEERS, IAU.
KW  - Appropriate models; Biomass growth rate; Bioprocesses; Constant coefficients; Design and operations; Determination coefficients; Experimental data; First-order; First-order models; Full scale; Growth yield; Hydraulic retention time; Internal recirculations; Kinetic coefficient; Kinetic modeling; Microbial decay; Monod model; Nitrogen and phosphorus removal; Nutrient removal; Nutrients removal; Phosphorous removal; Process kinetics; Sludge systems; Substrate removal; Synthetic waste water
KW  -  Biological water treatment; Chemical oxygen demand; Decay (organic); Kinetic theory; Kinetics; Nitrogen; Phosphorus; Rate constants
KW  -  Nitrogen removal
EP  - 378
ER  -