A large semiconductor manufacturing in the Pacific Northwest required an ammonia treatment system to treat approximately 40 gallons per minute of ammonia bearing wastewater. The design criteria included 24-hours per day operation with a system uptime of 99.5% or greater annually. The customer also preferred a modular approach in which multiple units would be used at incremental flow rates to treat to a low level of ammonia, both in the aqueous and the gas phase effluents. The waste stream was anticipated to contain a number of contaminants in addition to ammonia at substantial concentrations. Evoqua Water Technologies was asked to provide a solution to the manufacturer's challenges for this unique waste stream.