- continuous distillation
- batch distillation
- liquid/liquid extraction
- vent gas treatment with cryogenic condensation
- vent gas treatment with adsorption on activated carbons or resins
- integrated systems for process waste water treatment
- solvent recovery
- hydrogen production
- technical gases production/purification
- drying of organic products
- incineration of solid/liquid/gas wastes

Special applications:

- Distillation, during or at end of reaction, under pressure or vacuum, to selectively separate from reactor mixture one or more volatile compounds (liquid or gases produced by the reaction, solvents, excess reactants, etc.), leaving unaltered (qualitatively and quantitatively) the other components of the mixture, and obtaining the direct recovery of the separated compounds with quality characteristics that can permit their reuse.

- Distillation of particularly complex solvent mixtures, residual from production processes, in order to get single high purity fractions to be reused or to be sold with economical benefit. For this purpose Polaris patented technologies are adopted, combined with conventional techniques for mixture pretreatment and liquid extraction.

- Drying of organic products in inert atmosphere, realised with closed circuit, with integrated solvent recovery and final treatment of excess emission from drying circuit for quantitative removal of the contaminants. Polaris is available for modification or integration of conventional existing plants, that work with air in open or closed loop (improving product quality and safety of drying process), or already working with inert atmosphere.

- Treatment of waste water non acceptable for conventional chemical or biological methods, realised with combined system for evaporation and reusable low pressure steam production, incineration of the more volatile organic fractions and concentrated residues, organic and inorganic, associated to other treatments for integral water recovery, thus realising the "Zero Discharge Ecology".

- Purification of highly contaminated water with organic fractions, more or less volatile than water, in order to obtain water that can be discharged to public sewer or to superficial water, and a concentrated residue to be disposed for incineration.

Such treatment, limited to the more "difficult" fractions, is normally associated to other existing purification techniques in order to reduce operating costs, to achieve a global minor environmental impact, and to allow a different use of the waste waters not possible in other way because of the presence of some residual contaminants.

- Incineration of organic liquid and semi-solid wastes containing chloro-derivatives, also associated to the combustion of polluted gaseous emissions, with multistage purification of flue gases. The technology for incineration and consequent flue gas stabilisation carried out in the Polaris plant, as it results by rigorous analyses made, allows to keep the dioxin level below 0,01 ng/Nm3, one tenth of the limit allowed by the most strict legislation.