Does anyone know whatever happened to Calgon's old EL-5600 antiscalant? I belive it was purchased by Nalco but I'm not sure what the new name is for it... Thanks.
It is interesting to see that a series of 2nd pass RO systems are losing rejection in less than 18 months of operation. The systems are nearly identical in both pretreatment and design with the only commonality being interpass NAOH injection to increase the carbonate levels in aid of higher 2nd...
