Membrane bioreactors have reached a level of maturity where the technology is regularly implemented for the treatment of wastewater and to enable reuse. They are now applied at many facilities and provide a cost-competitive treatment option. This book presents the best practices for the design and operation of membrane bioreactors, providing critical information for wastewater professionals implementing this technology. The book begins with an overview of membrane and biological process fundamentals, followed by coverage of membrane bioreactor system integrated process design. The chapters discuss the physical design of features unique to membrane bioreactors and the procurement of membrane equipment. This authoritative manual also covers the operation of properly designed membrane bioreactor facilities.