This textbook investigates the core principles and engineering methodologies required for the effective design and operation of modern wastewater treatment systems. Author Rumana Riffat, an expert in environmental engineering, synthesizes theoretical frameworks with practical application to prepare students for professional practice. The text utilizes regulatory standards from the World Health Organization and the United States Environmental Protection Agency to ground its technical instruction in real-world compliance. By balancing fundamental theory with quantitative problem-solving, the book provides a comprehensive curriculum for civil and environmental engineering students.

Experts and educators identify this text as a foundational resource for undergraduate and graduate-level environmental engineering courses. Readers frequently note the clarity of the technical explanations and the utility of the included problem sets for reinforcing complex engineering concepts.