Advanced systems are usually installed in areas with significant soil and site limitations. Specifics of system design are usually proprietary but all involve the introduction of air to the wastewater to cause aerobic conditions that favor microbial action that causes enhanced decomposition of organic particulates, transformation of contaminants and even deactivation of some pathogens. This talk will start with a discussion of site and soil conditions that leads to the decision to install an advanced system. Detailed discussions on various processes that go on in a typical advanced system treatment train will then follow. Particular attention will be given to microbial processes that affect the fates of organic particulates and of contaminants nitrogen, phosphorus and pathogenic bacteria as they move through the system.

The instructor for this class is Sergio Abit with Oklahoma State University.