Integration of kinetic modeling and desirability function approach for multi-objective optimization of UASB reactor treating poultry manure wastewater.
An integrated multi-objective optimization approach within the framework of nonlinear regression-based kinetic modeling and desirability function was proposed to optimize an up-flow anaerobic sludge blanket (UASB) reactor treating poultry manure wastewater (PMW). Chen-Hashimoto and modified Stover-Kincannon models were applied to the UASB reactor for determination of bio-kinetic coefficients. A new empirical formulation of volumetric organic loading rate was derived for the first time for PMW to estimate the dimensionless kinetic parameter (K) in the Chen-Hashimoto model. Maximum substrate utilization rate constant and saturation constant were predicted as 11.83 g COD/L/day and 13.02 g COD/L/day, respectively, for the modified Stover-Kincannon model. Based on four process-related variables, three objective functions including a detailed bio-economic model were derived and optimized by using a LOQO/AMPL algorithm, with a maximum overall desirability of 0.896. The proposed optimization scheme demonstrated a useful tool for the UASB reactor to optimize several responses simultaneously.
Yildiz Technical University, Faculty of Civil Engineering, Department of Environmental Engineering, 34220 Davutpasa, Esenler, Istanbul, Turkey. yetilmez@yildiz.edu.tr
Kaan
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Yetilmezsoy
D000693:Anaerobiosis; D000818:Animals; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000191:economics; D007700:Kinetics; D008372:Manure / Q000032:analysis*; D008697:Methane / Q000032:analysis; D008962:Models, Theoretical; D011200:Poultry; D012044:Regression Analysis; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000191:economics; D018508:Water Purification / Q000191:economics / Q000295:instrumentation* / Q000379:methods*
D008372:Manure; D012722:Sewage; D008697:Methane