Most sewage treatment plants have classical processes, which are usually coagulation-flocculation of biological treatments. It is noted that in large metropolises the problems of sewage treatment have spread, and part of these effluents, both domestic and industrial, are usually discharged into the environment, causing problems and risks to the health of the population; therefore, new treatment methods are needed to avoid damage and contamination to the environment. In addition, the growth of urban environments has left few alternative areas available for the implementation of sewage treatment plants (STPs), as these require significant space for their installation. As alternatives to conventional wastewater treatment plants, a new technology has emerged from a simple biomass filtration concept: membrane bioreactors (MBR). This article aims to demonstrate how effluent treatment procedures are carried out using MBR technology, with which we have the possibility to work with high application rates, with the viability of an improved effluent and with viable water reuse options.