Installations
Vacuum evaporation - Water softening - Demineralisation - Reversed osmosis - Active Carbon Filtration - Paint stripping
Vacuum evaporation
Vacuum evaporators are used in a large number of industrial sectors for the treatment of industrial waste water. It is a clean, safe and very versatile technology with low management costs, which in most cases serves as a zero discharge system.
90 to 95% of the purified water can be put back into production via vacuum evaporation, saving water bills.
Vacuum evaporation is the process by which the pressure in a container filled with liquid is reduced to below the vapour pressure of the liquid, causing the liquid to evaporate at a lower temperature than normal. Although the process can be applied to any type of liquid at any vapour pressure, it is generally used to describe the boiling of water by reducing the internal pressure of the container to below standard atmospheric pressure and boiling the water at room temperature.
This lowers the boiling point of the liquid to be evaporated, reducing or eliminating the need for heat in both the boiling and condensing processes. In addition, there are other technical advantages, such as the possibility of distilling other liquids with a high boiling point and avoiding the degradation of substances that are sensitive to temperature, etc.
For our vacuum evaporators we are cooperating with the Italian C&G Depurazione Industriale.
Active Carbon Filtration - Softening - Reversed Osmosis - Demineralisation
Activated carbon filtration is a filtration method that uses an activated carbon bed to remove contaminants and impurities, using chemical adsorption. Activated carbon operates through a process called adsorption, in which contaminating molecules in the liquid to be treated are trapped in the pore structure of the carbon substrate. Carbon filtration is often used for water purification, air filtration and industrial gas processing, for example the removal of siloxanes and hydrogen sulphide from biogas. Activated carbon filters are most effective in removing chlorine, particles such as sediment, volatile organic compounds (VOCs), taste and odour from water. Particle size is used as part of the filter description. The effectiveness of a carbon filter is also based on flow control. When water flows more slowly through the filter, the contaminants are exposed to the filter medium for a longer period of time.
Water softening is the removal of calcium, magnesium and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted on removing calcium ions. Soft water also prolongs plumbing life by reducing or eliminating calcium deposits in pipes and fittings.
Reversed osmosis (RO) is a water purification technology that uses a partially permeable membrane to remove ions, molecules and larger particles from water.
Demineralisation is obtained by ion exchange. These ion exchangers remove the residual salts from the water.