This contribution deals with controlling of semi-batch reactor used for chromium sludge regeneration process. A comparison of three process control approaches is presented. Usual PID controller without online identification (OI) and adaptive PID controller were adapted to semi-batch rector process in our previous studies. The new one two-degree-offreedom (2DOF) controller is developed for the s...

Abstract Thai cassava starch industry generates solid waste or pulp approximately of 9.5 Mt/y (with a moisture content 70–80%). Biogas production technology has been introduced for several decades in Thailand. However, the implementation biogas using as feedstock is still limited due to complex lignocellulosic structure, which diminishes hydrolysis. This work investigated from 50-m 3 pilot-scal...