Both SBR and ASP systems are commonly used in the sewage treatment industry, and both offer benefits that can greatly improve the wastewater treatment process. One system, however, does seem to stand out over the other, for certain applications: the SBR system. SBR sewage treatment plants are known for producing high-quality effluent after treatment by using air diffusers to provide oxygen to the indigenous microorganisms in the tank. These systems are similar to ASP systems in that they contain a primary settlement chamber and a secondary treatment chamber. SBR systems are the most common type of batch filtration technique and can be used for a wide range of applications.