Predicting and Verifying TOC Removal by PAC in Pilot‐Scale UF Systems

Abstract

A modeling technique was developed to predict organics removal by powdered activated carbon (PAC) added as a pretreatment to hollow‐fiber ultrafiltration (UF). Model predictions were successfully verified for large‐ and small‐scale PAC‐UF pilot plants. Experiments were conducted using different water sources, PAC dosages, and backwashing frequencies. Natural organic matter in the water sources, represented by total organic carbon, was the target compound studied. The modeling procedure can be used in the design and evaluation of PAC‐UF systems.