Simulation-enabled design exploration for
improved gas combustion.
desired result. It is better to estimate
the expected chemistry and discuss
implications of deviations with the
ZLD system supplier.
Metallurgy. Metallurgy plays a significant role in the capital cost of a ZLD system. Alloys that provide corrosion resistance to the highly concentrated brines
are required. There are options available
that allow for cost optimization without
sacrificing plant service life.
Conservative Design Margin. The
ZLD system is the “end of the pipe” in
most plants; anything that has washed
into a waste sump concentrates in the
ZLD system. Experience shows that actual waste water chemistry will deviate
from the design chemistry.
Once properly designed operating issues can be handled by the plant operating team working with a ZLD system
supplier that has demonstrated experience in operating similar facilities.
conditions. Care should be taken
to not be overly heavy handed in
applying margin to design chemistries
as such practice may not achieve the
waste water chemistry design basis
that is representative of the average
conditions, as well as the minimum
and more importantly the maximum
Dry solids for disposal
Source: Aquatech International
5 ZLD System with Brine Concentrator and Crystallizer