摘要:The performance of biological reactors longer times than those usually devoted to regular laboratory demonstrations. Biological wastewatertreatments are inherently dynamic systems and any change in the operation conditions would take several weeks for stabilization.In order to overcome this lack, computer simulations are useful tools to describe and predict the overall performance of bioreactorsunder different operation conditions. In this work, we present BioReSIM, a MATLAB code in a friendly and graphic user interface for thesimulation of sequencing batch reactors (SBR) and rotating biological contactors (RBC) as biological systems of suspended and attachedbiomass for wastewater treatment, respectively