Waste solvent recovery

Waste solvent recovery is a treatment by physicochemical processes for the purpose of obtaining raw material (recovered solvent). The recovery comprises separating and isolating useful organic solvents based on differences in properties of individual components of waste material.

Basic recovery operations at Premifab include evaporating and condensing the desired chemical compound from waste by using state-of-the-art distillation plants, which are electronically operated and meet all the desired physicochemical and safety requirements. Distillation means separating the target pure volatile part (useful solvent) from the non-volatile part of the waste (sludge, paint, water, and other impurities).

By means of an integrated vacuum pump, the waste is transferred from closed IBC tanks to the closed tank of a machine in which evaporation takes place during a continuous 24-hour process. Then the evaporated purified solvent gets condensed and, at the end of the continuous distillation process, unwanted distillation residues (sludge, water, etc.) are removed. After condensation, the recovered solvent is transported to clean IBC containers.

The waste must be recovered in a way that is not harmful to human health, by using processes that either do not harm the environment at all, or harm it to the minimum extent possible.