blue01_next.gif Vacuum Distillation

blue01_next.gif Advanced Oxidation

Vacuum Distillation System

Simply the act of separating water from contaminants. Water reaches its boiling point and is evaporated away leaving the non-vaporized substances behind. HF’s pollution control system’s evaporate the water in a vacuum reducing the boiling temperature to below 100 degrees F (38 °C).


 Vacuum Distillation System separates the water solvent from chemical waste solutions discharged from metal plating, photographic processing, printing ink, paint manufacturing, cosmetic, mechanical and other industries which utilize water-based chemicals.

For example, in photographic processing applications, the evaporators separate as much as 95% of the water, leaving a pumpable concentrate representing only 5% of the total solution processed. After separation, the concentrate is removed from the processing facility by a hazardous waste collector who either destroys the waste or reprocesses it into other usable products. The pure water can then be discharged into municipal sewer systems or further refined for reuse.

The Vacuum Distillation System allow for low energy consumption, reduced water usage and sewer costs, as well as lower waste pickup charges. The application dramatically offsets the high cost of hazardous waste chemical disposal and will assure compliance with local and federal EPA requirements.

Example of Industry Types where Vacuum Distillation Systems are Used

Typical contaminants found in those industries

Aerospace Manufacturing

Heavy Metals, Water Based Solvents Plating. Treatment of rinsingwaters. Concentration of spent process baths. Concentration of high corrosive solutions such as chromic and hydrochloric acid.

Automotive Parts Recycling

Concentration of spent glycol solutions

Disposal companies

Concentration of collected wastes. Reduction of the pollution load of particular stream to be sent to the final polishing

Chemical Manufacturers

Concentration of collected wastes. Reduction of the pollution load of particular stream to be sent to the final polishing

Gas Utility

Concentration of landfill leachate

Food and Wood Treatment

Wood Treatment of condensed water from wood drying

Pharmaceutical Manufacturing

Treatment of process and equipment cleaning waters

Film Processing and Printing

Photographic Treatment of processor rinsing water. Concentration of depleted Fix and Dev baths. Graphic arts

Semiconductor Manufacturing

Electronic Treatment of PCB and semiconductors rinsing waters

Membrane Manufacturing


Plating and Precious Metal working

Metals and cyanides from rinsing and process waters

Surface treatment

Concentration of spent phosphate and degreasing baths. Treatment of tumbling and pickling rinse waters