This powerpoint presentation begins by providing a brief overview of desalination concentration management and disposal. Intermediate Concentrate Chemical
Stabilization (ICCS) removes scale
forming constituents that limit recovery, and projected conceptual system total
chemical costs for lime ICCS are much
lower than caustic soda ICCS. A one year test is presented, consisting of
groundwater and blend water phases. Conclusions indicate that:
ICCS is the most economic way
approaching zero liquid discharge (ZLD) salinity management;
95% overall recovery can be achieved on
both brackish surface and groundwater
using ICCS and secondary RO; and,
ICCS reactor removes 70 to 80% total
silica on average. However, colloidal silica
in the surface water causes fouling.