A novel method is used to measure and empirically describe influences on breakthrough characteristics.
For column operation, central composite design (CCD) was applied to investigate the influence on the breakthrough time for optimization of As III) biosorption process and evaluation of interacting effects of different operating variables.
For column operation, CCD was applied to investigate the influence on the breakthrough time for optimization of As III) biosorption process and evaluation of interacting effects of three different operating variables.
For column operation, central composite design (CCD) in response surface methodology (RSM) was applied to investigate the influence on the breakthrough time for optimization and evaluation of interacting effects of different operating variables.
The CCD in RSM was designed for a set of three independent variables, viz., initial As III) concentration, flow rate, and biosorbent dose, to investigate their influence on the breakthrough time for continuous fixed-bed biosorption of As III) by AiBP.
A sensitivity analysis showed that external mass-transfer had a much stronger influence on the breakthrough curve than internal mass-transfer, confirming that the overall mass-transfer for toluene adsorption onto activated carbon fibers in fixed bed is controlled by external mass-transfer.
A series of breakthrough experiments were conducted under different water saturation conditions for four shales taken from the Carboniferous Hoit Taria Formation in the eastern Qaidam Basin, China to investigate the influence of water saturation on breakthrough pressure.
Open image in new window Fig. 3 Influences of different input pulse volumes on breakthrough curves and the comparison between experimental data (Exp. Data) and the values fitted by the convection dispersion equation (CDE) and two-region model.
The influences of the purge gas temperature on breakthrough curves, CSS convergence time, cyclic operating step time, purge gas consumed, regeneration energy requirement and adsorption ability at CSS are also discussed.
Moreover, the results of the experiments demonstrate that there occurs a large difference between the breakthrough area and non-breakthrough area in terms of temperature and oil production, and the heterogeneity has a great influence on the occurrence of steam breakthrough.
