Chemical Solutions

Hot/cold water scraped vacuum evaporators. AC R Series evaporators

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.



  1. high energy saving (efficiency)

  2. effective treatment of viscous, almost anhydrous sludge

  3. the possibility of utilizing surplus energy from cogeneration plants

Scope of application:

  • designed to handle wastewater with high content of solids and are typically used for further concentration or crystallization of the concentrate

  • mining and primary metals (wastewater from ore processing, RO concentrates)

  • oil and gas (RO concentrate, IE regeneration, heavy oils water separation and etc.)

  • chemical industry (discharges from scrubbers, gas scrubber blow-down, manufacture of detergents, explosives (Nitroglycerin) wastewater, purification of various effluents, including radioactive (radwaste) etc.)

  • electric-power (energy) industry (processing of concentrates of reverse osmosis (RO concentrates), demineralized water generator system discharges (IE regeneration), scrubbing liquid of cleaning tower of flue gases, gas scrubber blow-down

  • mechanical and surface treatments (moulds release liquids baths, exhausted oil emulsions, quenching baths and etc.)

Evaporation plant models


Distillate produced

AC R 3

3 000 lt/day

AC R 6

6 000 lt/day

AC R 12

12 000 lt/day

Distinctive features:

The possibility of obtaining a concentrate in solid form:

The presence of the mixing device with the scraper mechanisms, a heating jacket, the possibility of discharge of the concentrate in a solid form allows to concentrate the treated solutions to the minimal humidity (moisture content).



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