This book offers precise guidelines and exemplary design instances of membrane filtration and membrane bioreactors (MBR) for wastewater treatment. In addition, the book presents some real-world insights into the technology. Delving into the intricacies of MBR technology such as biological treatment and membrane fouling, the primary focus remains on membrane filtration and its application in wastewater treatment. The content extends to practical aspects of MBR utilization in daily life, including maintenance, design intricacies, and illustrative case studies. Tailored for students and wastewater engineers, the book seamlessly includes foundational chapters, which are supplemented with examples and problem-solving exercises, to facilitate a thorough understanding of MBR technology. Addressing both the scientific and technological facets, the book presents extensive insights into MBR applications and practices with foundational principles. The book consists of eighteen chapters, encompassing membrane basics, contemporary membrane types, characterization techniques, fouling dynamics, diverse configurations, practical applications, and case studies.