Finding Emerging Contaminants
This presentation will describe (1) analytical methods to identify emerging contaminants in drinking water supplies and (2) the application of these methods to drinking water sources in North Carolina. Example […]
Contaminants of Emerging Concern: The Regulatory Landscape
The SDWA was enacted in 1976 to protect the national drinking water supply and public health. Over the past fifty years, the regulatory process has addressed contaminants and provided the […]
Cost of Desalination
This presentation provides an overview of membrane treatment costs, particularly as they relate to the removal of CECs with membranes. The talk will discuss impacts that influence capital and operating […]
Short-chain PFAS Treatment Costs: Experiences in PFAS Cost of Treatment
Brunswick County Northwest Water Treatment Plant Membrane Advanced Treatment Upgrades for Per- and Polyfluoroalkyls
A case study on the discovery of PFAS (Per- and Polyfluoroalkyl Substances) in the Cape Fear River source water of Brunswick County’s Northwest Water Treatment Plant and the evaluation of […]
Brunswick County’s LPRO NPDES Permitting Process
In 2017, Brunswick County government and it’s citizens were surprised to find high levels of PFAS in their drinking water. The public utility participated in piloting multiple removal technologies and […]
Tar Heels and Polyamide Reels: LPRO Piloting in the Old North State
This presentation will summarize three case studies of piloting low-pressure reverse osmosis (LPRO) for the removal of emerging contaminants, such as per- and polyfluoroalkyl substances (PFAS) and 1,4-dioxane. The speaker […]
A Pilot Study to Evaluate PFAS Removal from Filtered Water
This presentation will review the removal of per- and polyfluoroalkyl substances (PFAS) from surface water using nanofiltration (NF). A 20-gpm NF pilot has been in operation since October 2021 to […]
Tutorial: Reverse Osmosis Membrane Technologies for Purifying Water
Today’s membranes for reverse osmosis are primarily thin film composite constructions or porous asymmetric films that are rolled into modules for incorporation into water purification plants. The composite membranes are […]
Design Criteria and Operating Conditions Have Sizeable Impacts on Trace Organic Removal by Reverse Osmosis for Potable Reuse
This presentation describes the results of mathematical modeling that demonstrates the extent to which reverse osmosis design criteria and operating conditions affect the removal of trace organics in potable reuse […]
