The vacuum evaporation
The vacuum evaporation is a system designed for the treatment of aqueous effluents from various industrial processes. The principle is the concentration of solids in the effluent by VACUUM EVAPORATION, it allows a significant reduction in the volume of effluent used to remove and recycle of treated water « zero discharge » loop.

NTS: selling in France evaporators for wastewater IST

The advantages of vacuum evaporation

The vacuum evaporation is a very economical solution because it uses no reagents and other consumables. This solution has many other advantages:

  • low energy consumption
  • high quality of the distillate that can be recycled or used as discharge water
  • obtain highly concentrated substances
  • work automatically without supervision
  • easy maintenance
  • integration with already existing systems
  • complementary with other process
  • allow the development of ZLD
  • corrosion-resistant
  • low temperature evaporation

Examples of industries that can use the vacuum evaporation

The vacuum evaporation is used to concentrate waste water in the following industries:

  • ELECTROPLATING: eluted fluids of resins plants, fluids from chrome, nickel
    and copper washing
  • MECHANICAL: oily emulsions, washing fluids
  • DIE-CASTING: glycol fluids, lubricants and cooling fluids
  • PAINTING WASTE WATER: fluids from washing of painted components
  • GARBAGE FLUIDS
  • FLUIDS FROM BIOGAS PLANTS
  • REVERSE OSMOSIS (salines)
  • ZLD: total recycle of waste water

Solution to reduce the COD effluent

  • Bring to a boil the effluent at low temperature (30 ° C) under vacuum.
  • The vapors will naturally cool on a cold heat exchanger which condenses into distilled water.
  • The energy required to raise the temperature of the effluent and condensing the vapors coming from the heat pump
  • The evaporation control is guaranteed by a PLC.
Schema de principe

The vacuum evaporation NTS.fr