Water and salt (Sodium chloride) are components of the most importance to
the civilised world. Seawater, lake water, brines, sea salt and rock salt are
the crude materials used for the salt production.
Large-scale solar
ponds are still today employed for the production of salt from seawater and
natural brine. Low capital expenditure and costfree solar energy are the
obvious advantages. However, when high purity and free-flowing properties are
required, modern processes involving mechanical and thermal refining are
necessary to process the raw salt.
Recovery of Salt from the Sea (Solar Salt)
GEA Messo designs and supplies all kind of salt plants beginning with the
washing technology until the thermal refining of salt. These plants ensure that
all marketing grades can be produced cost-efficiently.
GEA Messo has
developed and installed plants making advantage of a combined recovery of
technical or food grade salt and potable water from concentrated seawater, the
latter being the purge stream of sea water desalination plants.
Among
all of those are included plants operated after the Multiple Effect Evaporation
concept - MEE -, the TVR Thermal Vapour Recompression = Thermocompression - TVR
- and the MVR Mechanical Vapour Recompression principle - MVR -, in order to
achieve optimal energy consumption depending on the local conditions.
Salt Recovery of Table Salt by
MVR Evaporation
Crystallization