The ability of the freeze concentration process to separate clean water from an aqueous solution can be used advantageously in the field of waste water concentration.  New Freeze Tec technology results in a drastic reduction of costs and a subsequent jump increase in economic feasibility for projects in this field.

example of waste water feed  stream to freeze concentrator froma resins plant

(chemical process industry).

perfect separation of clean water from an, artificially colored, 

concentrated waste water stream.

Applications:

Concentrating dilute aqueous waste streams:   In the chemical industry waste streams are often incinerated when they are not suitable for bio treatment. Because it is very costly to “burn water” it is very advantageous to remove as much water as possible from the stream before it is fed to the incinerator. Freeze concentration offers the ability to extract clean water in one step. Evaporation often presents problems with fouling and contaminated condensate.

Concentration combined with freeze generation:  In the brewing industry the need for concentrating effluents coincides with the need for freeze generation. In this case freeze concentration is feasible because it supplies both: concentrated waste stream  AND a clean ice slurry for cooling purposes. Another application in this category is concentrating effluents from mines and using the ice slurry to cool the mine shafts.

Freeze concentration of etchant fluids is an example in this application category. Sometimes the waste stream contains valuable products that can be recovered if the stream is concentrated. It is also possible that a waste stream can be re-used if it is concentrated to original strength, often in combination with a bleed to keep the concentration of undesired contaminants within acceptable limits.