Dr. Grieco is the Global Technology Leader for Emerging Contaminants with Jacobs Drinking Water & Reuse / Wastewater groups. He has over 30 years of experience in the evaluation, design, and optimization of water treatment systems across the public utility, remediation, and industrial sectors. For the last 10 years he has focused on evaluation and treatment of PFAS.

Scott holds a BS in Chemical Engineering, MS in Environmental Engineering, and PhD in Bioprocess Engineering and is a registered Professional Engineer in New York.

With federal MCLs for PFAS imminent and UCMR5 sampling upcoming, evaluation and planning for PFAS mitigation is important.

Many states have implemented regulations which provides a good basis for treatment experience and costs. As more PFAS treatment systems are placed in service across the United States, both granular activated carbon (GAC) and ion exchange (IX) technologies are observed. Although potential advantages of combination GAC/IX have been discussed, there are little data that compare combined versus singular media treatment. Jacobs recently completed a pilot study that compares GAC and IX treatment individually and in combination (GAC followed by IX).

This presentation provides general presentation of PFAS impacts to drinking water, currently available and developing technologies, and detailed description of subject topic regarding adsorption. The presentation include the pilot system case study which details the pilot system design, operating parameters, and performance results. Pilot data are scaled to full-scale operation such that life cycle costs for each system configuration will be presented.