Zeta Rods installed into a Foxconn Reverse Osmosis (RO) plant in Shenzhen China increases permeate rate from 66.6% to 76.4%, reduces wastewater by 15% and prevents fouling of RO membranes allowing for energy savings and increased productivity.
“The Zeta Rod improved operability of the conventional RO treatment (relative to no pretreatment) although the mechanism responsible for the observed reduction in membrane fouling is not well understood. Feed pressures and WTC were more stable during Zeta Rod use at 50% recovery than without its use at 15% recovery.”
CH2M HILL, a global leader in full service engineering, construction and operations, was tasked to find a way to treat the concentrate stream from a water treatment plant located in Sherman, Texas USA. The City wanted to be able to treat this wastewater in order to reduce sewer and wastewater plant loadings, and to recover a portion of the wastewater as high quality water than could be used to increase plant finished water capacity. Continue reading
After three months, the membrane was removed and the vessel was seen to be completely clean. The membrane body, like the vessel surface,was completely free of bio-film.The removal of biofilm from the membrane was evidenced by a 4.98% increase in the rate of permeate recovery, from 77.26% to 81.11%.