This book covers the fundamental concepts required to solve typical problems in water and wastewater engineering. Water professionals working in the industry require a license to work in water plants, and Math Problems in Water and Wastewater aids readers in preparing for the mathematics portion of these exams. It lays a sound foundation that not only helps with the certification examination but also helps water operators in performing their daily activities. The basic concepts and volumes of various unit devices followed by specific problems in water and water treatment are presented through solved example problems. Includes examples both in Imperial and SI units throughout Covers common and specific topics both for water and wastewater operations All calculations shown with unit cancellation All example problems are followed by practice problems Examples include problems suitable for all level of certification A brief description of the water and wastewater treatment is given