Project Number: 8042-32420-005-50
Start Date: Mar 01, 2014
End Date: Feb 28, 2015
This proof of concept study will evaluate the use of conventional and advanced technologies for the treatment of spent process-water destined for reuse within a fresh-cut produce wash processing operation. The overall approach will be to determine the efficacy of each in a sequential series of technology options to achieve incremental removal of substances contributing to the wash water chlorine demand. The water quality will be characterized for COD, TOC, alkalinity, pH, turbidity, conductivity, and chlorine demand. Chemical and physical methods for the removal of free chlorine-demanding substances will be evaluated, including different coagulants and untrafilteration followed by reverse osmosis or nanofiltation.