In most conventional activated sludge processes or aerobic granular reactor, the microorganisms grow in flocs. Flocs are defined as a mass of microorganisms that are held together by slime or fungal filaments, which help with aerobic decomposition and trapping particles (et al. Wilen). Activated sludges are built with two physical separate tanks. One tank is specifically designed for aeration, where biological reactions happen. The second tank or the “settling tank” is where treated water is separated from flocculation. This is the most important part because the biomass is in the form of the flocculent sludge, which consists of extracellular polymeric substances. There are some downfalls to using a conventional AGS system because they tend to have low biomass in the aeration tank and settling tank.