With rapid population growth across the US South, centralized water resource recovery facilities (WRRFs) are struggling to maintain pace from both a treatment capacity and funding perspective. At the same time, increasingly stringent national and state-level nutrient regulations are putting additional treatment and financial burdens on already overextended utility infrastructure. While the concept of intensification has been applied across all unit processes for decades, “process intensification” has recently emerged as an industry buzzword that takes a range of definitions. In its simplest form, intensification is doing more with less. More specifically, in a secondary treatment system, process intensification can be implemented to increase the biochemical oxygen demand (BOD) and/or nutrient removal capacity within an existing footprint, or drastically decrease the footprint required in a greenfield application. Various technologies have become commercially available over the last decade including densified activated sludge (DAS), aerobic granular sludge, membrane aerated bioreactors, and carrier media processes. While the above-mentioned technologies have largely been validated and accepted for full-scale application, a novel alternative is being considered for introduction into the US municipal market. Pegasus Gel Intensification Technology (Pegasus™), is an advanced wastewater treatment process which promotes nitrification by using inclusive immobilization supports. Microbial entrapment occurs in nitrifying biogels containing highly concentrated, immobilized microorganisms in polyethylene glycol (PEG)-based gel carriers. The Pegasus™ technology has been in use for over 25 years at full-scale in Japan and is reported to require lower hydraulic retention times (HRT) and a smaller footprint, when compared to conventional biological treatment processes, and offers additional advantages (e.g., shorter acclimation time) and robust performance over extended periods of time. A pilot-scale demonstration of the Pegasus was conducted at the Dallas Water Utilities (DWU) Central Wastewater Treatment Plant to evaluate ammonia-nitrogen removal in the facility’s primary effluent. The primary objective of this project was to evaluate the capability of Pegasus to reduce ammonia-nitrogen concentrations in the effluent wastewater to less than 1 mg/L during continuous flow, steady state conditions for wastewater characteristics in the US. Wastewater samples were analyzed for pH, alkalinity, temperature, DO, ORP, sCOD, nitrogen species (NH3-N, NO3-N, NO2-N, and TN), phosphorus species (Total P, PO4-P), total suspended solids. Supplemental sludge and biogel nitrification activity tests were conducted onsite at a bench-scale to better understand nitrification contribution from the sludge versus the biogel. Several key conclusions were made including biogels performed as expected under typical solids retention times, reducing effluent ammonia concentrations below 1 mg/L. In addition, nitrification was confirmed in the biogels and bulk sludge through activity testing and nitrification in biogels reached theoretical activity after one month of operation. The purpose of this presentation is to provide an overview of pilot operation and results from testing completed under Central WWTP primary effluent and discuss the efficacy of gel intensification in the US.