Pilot Testing of Nanofiltration To Minimize TOC Levels and DBP Formation

The presentation describes the pilot testing arrangement with an infiltration supply well, ultrafiltration pre-treatment system and three stages of NF membranes to simulate full scale operation to reduce TOC to less than 0.8 mg/L. The pilot equipment was operated for three months
at 90% to 96% recovery, and operational data were collected on pressures and flows to compare to the computer projections from the manufacture. The source water, permeate and concentrate were tested to determine membrane rejection rates for the various ions, TOC and trace elements. The use of nanofiltration to reduce TOC for DBP control represents a innovative approach to DBP control in systems with long detention times.

This presentation is available to AMTA Members only.