Influences of organic load perturbations on the process performance of a thermophilic anaerobic contact reactor treating potato processing wastewater were investigated. For this purpose, while the reactor was operated under steady-state conditions with an organic loading rate of 5.5 kg COD / m3 day, an instantaneous increase in acetate concentration (1 g / L). During the acetate shock loading test, it was observed that the overall process performance was negatively affected by the entire shock load, however, the system achieved steady state conditions of less than 24 hours of operation indicating that the thermophilic anaerobic contact reactor is resistant to shock loading and able to return its normal conditions in a short period of time.
The anaerobic bioreactor applies the principles of biotechnology and microbiology, and today it has been widely used in wastewater treatment plants because of its high efficiency, low energy consumption and green power generation. The advantages and disadvantages of the anaerobic process were shown and three main characteristics of the anaerobic bioreactor (AB), namely the non-homogeneous system, the instability of time and the instability of the space were analyzed. For the high efficiency of wastewater treatment, the parameters of the anaerobic digestion process were introduced, such as temperature, pH, hydraulic retention time (HRT), organic loading rate (OLR) and sludge retention time (SRT) to take into account the optimal conditions for life, growth and multiplication of bacteria. Also explained were the internal components, which can improve SRT, and even improve mass transfer, and have been divided into transverse internal components, longitudinal internal components and biofilm packaging material. Finally, the newly developed special internal components were discussed and found more efficient and productive.