The Biology and Troubleshooting of Facultative Lagoons (Wastewater Microbiology Book 7) offers personnel a comprehensive new understanding of how lagoon and fixed film sewage treatment systems operate. Authored by Michael H. Gerardi, this book is based on practical experience tested in short-course situations over the past two decades. It directs material in a straightforward manner for operators responsible for process control and troubleshooting, reducing the complexity often found in technical literature. By minimizing jargon, chemical equations, and kinetics, it provides essential information necessary to understand biological and chemical conditions within the treatment process.