Figure 4From: Biobutanol production in a Clostridium acetobutylicum biofilm reactor integrated with simultaneous product recovery by adsorptionKinetics of the fixed-bed adsorption. The fixed-bed adsorption was started at13 h. A sample before the adsorption (influent, black square) and a sample after the adsorption (effluent, red circle) were withdrawn simultaneously every time to determine the extent of resin saturation. A higher sorbate titer in the effluent meant that the sorbate initially adsorbed onto the KA-I resin was subsequently eluted in the butanol adsorption process. The resin column was replaced with a new resin column when saturated by butanol.Back to article page