This paper presents simulation experiments on the continuous stirred tank reactor (CSTR) which is widely used equipment mainly in the chemical industry. The behaviour of these types of systems is usually nonlinear with other negative properties such as a time-delay or a non-minimum phase behaviour and simulation could help us with the understanding of them without making real experiments which ...

Sustainable production and utilization of biofuels has an enormous potential for the world’s energy supply. Most research studies usually focus on individual conversion processes and specific end-products. To gain full benefits however, it is important to investigate production and utilization cycles in an integrated way and to consider all important aspects involved: e.g. crop production, resi...

The impact of mixing and hydrodynamics on the removal contaminants emerging concern (CECs) detected in a secondary WWTP effluent by solar photo-Fenton process pilot scale Raceway Pond Reactor (RPR) was investigated computational fluid dynamics (CFD). CFD model incorporated CECs oxidation kinetics at neutral pH with Fe3+-EDDS, radiation transport through water, turbulent flow field produced padd...

BACKGROUND Caldicellulosiruptor species have gained a reputation as being among the best microorganisms to produce hydrogen (H2) due to possession of a combination of appropriate features. However, due to their low volumetric H2 productivities (Q H2), Caldicellulosiruptor species cannot be considered for any viable biohydrogen production process yet. In this study, we evaluate biofilm forming p...

extended kalman filtering (ekf) is a nonlinear dynamic data reconciliation (nddr) method. one of its main advantages is its suitability for on-line applications. this paper presents an on-line nddr method using ekf. it is implemented for two case studies, temperature measurements of a distillation column and concentration measurements of a cstr. in each time step, random numbers with zero mean ...

The goal of this study was to evaluate the biodegradation 1,4–dioxane using a mixed biological culture grown in textile wastewater sludge with as sole carbon source. conditions for long-term evaluation degradation were determined and optimized by batch scale analysis. Moreover, Monod’s model used determine biomass decay rate unknown parameters. soluble chemical oxygen demand (sCOD) concentratio...

Industrial scale continuous stirred tank reactor (CSTR) for production and grade transitions of poly vinyl acetate (PVAc) at the different reactor sizes was investigated. Such reactor is known to show oscillatory behavior and to have periodic limit points, particularly at high molecular weights. Four efficient novel hybrid optimization methods which use variable population size genetic algorith...