Our DESALX® technology consists of two Moving Bed Ion Exchange (MBIX) modules in series: removing multivalent cations (such as calcium, magnesium, and other metals) and then multivalent anions (such as sulphate) from water in a complementary processes. Monovalent ions such as sodium and chloride pass through the system, avoiding creating a difficult to manage saline brine, which is often produced by membrane technologies such as reverse osmosis.
The gypsum based brine produced by DESALX® can be sent to existing lime precipitation systems on site to produce gypsum solids for a true zero liquid discharge (ZLD) solution. If lime precipitation isn’t already available, DESALX® can be combined with a high density sludge (HDS) clarifier for a low cost ZLD solution.
