Wastewater Treatment Operations: Math Concepts and Calculations covers computations commonly used in wastewater treatment plant operations. This manual presents math operations that progressively advance to higher, more practical applications of mathematical calculations—that is, the math operations that operators at the highest level of licensure would be expected to know how to perform.

This manual presents the basic mathematical principles and concepts relating to water/wastewater engineering. To the extent possible, examples rely on practical field data and regulatory requirements have been integrated into the environmental design process. Each of the calculations provided is solved step-by-step in a streamlined manner that is intended to facilitate understanding. Examples (step-by-step solutions) range from calculations commonly used by operators to more complicated calculations required for research or design.