Designed to treat a high concentration of solids, EVALED® AC R series evaporators for wastewater treatment often follows a primary evaporator in series to provide further concentration or crystallization of the concentrate.

AC R is the hot/cold water evaporator/crystallizer with stirred and scraped heat exchanger surface that transfers heat by heating jacket containing circulating hot water. This series is designed to treat wastewater containing a high concentration of suspended and dissolved solids. That is the reason why within the boiling chamber wastewater is stirred continuously by an Archimedes screw type scraper, preventing any fouling of the heat exchange surface.
The evaporator produces a distillate recyclable, since free of dissolved salts, and a solid or semisolid concentrate with a water content lower than 15%.
The AC R evaporators are designed to work both continuously and by batch, by using a pump to discharge the concentrate or by stopping the evaporation process by opening the front door and leaving the screw working.
With the addition of an optional intermediate heat exchanger AC R evaporators can also utilize steam as a heat source.

  • From 3 to 12 ton/day of distillate
  • Dramatic reduction of volumes and disposal costs
  • Opportunity to utilize power from cogeneration plants
  • Matter recovery
Type Features
AC R 3 3,000 l – 790 US gal/24h
AC R 6 6,000 l – 1,600 US gal/24h
AC R 12 12,000 l – 3,200 US gal/24h

EVA life

Veolia Water Technologies Italia
is a reliable partner as ensures
a lifetime guarantee for the EVALED® evaporators.