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EvaledModel AC F Series -Wastewater Treatment Evaporators

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The PC F series evaporators represent the most versatile range in the entire EVALED catalogue. These units utilise heat pump technology to provide effective treatment of industrial wastewater at low temperatures. The evaporation of the waste takes place at a maximum temperature of 40° C due to the vacuum condition created inside the boiling chamber.

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up to 95% reused water
5% concentrate for disposal

In this way, the 8 models of the PC F series make it possible to treat liquids with a high dissolved solids content while minimising the occurrence of fouling and scaling.

The low temperatures reached in the boiler also allow optimal treatment of heat-sensitive liquids.

Flow rates of 0.7 to 24 tonnes/day (225 to 7700 tonnes/year) of distillate produced

8 models

SUPERDUPLEX and AISI316: different materials of construction to handle even the most aggressive effluents (acid pH, chlorides, heavy metals)

The yield in terms of distillate production can be up to 95%.

The high quality of the distillate produced allows it to be reused for various business purposes, thus reducing supply costs and water impact. The drastic reduction in wastewater volumes means that disposal costs are reduced accordingly, making a return on investment often quantifiable in months possible.

The right choice when:

  • the waste to be treated has a high dissolved solids content
  • the wastewater to be treated contains temperature-sensitive substances
  • it is required to treat particularly corrosive effluents

  • Continuous working mode
  • Low operating costs
  • Automated unit 
  • Remote control
  • Ease of use
  • Tailor-made Service Packages
  • Rental possibilities 

 All EVALED evaporators are standard and modular, frame-mounted automated units to minimise the space required, require minimal labour and maintenance, and are ready to use (plug & play).

Model: Max distillate produced

  • PC F 0.7: 0.7 tonnes/day
  • PC F 1.4: 1.4 tonnes/day
  • PC F 2.4: 2.4 tonnes/day
  • PC F 4: 4 tonnes/day
  • PC F 6: 6 tonnes/day
  • PC F 8: 8 tonnes/day
  • PC F 12: 12 tonnes/day
  • PC F 24: 24 tonnes/day

How EVALED® evaporators work

Discover how EVALED® evaporators work by taking advantage of three different heat exchange technologies to offer you the best solution for water treatment and energy reduction.
HOW DOES A HOT AND COLD WATER EVAPORATOR WORK?
A hot and cold water evaporator works like a heat pump evaporator, with two heat sources (one hot and one cold) to evaporate and condense steam.  In this case, however, hot and cold water available on site are used as the required thermal energy. The hot water transfers the necessary calories to the wastewater to be treated via the shell and tube heat exchanger (in the AC F series) or the heating jacket (in the AC R/S series). Cold water, on the other hand, is sent to the condenser, bringing the vapor produced in the boiling chamber to a liquid state, where there is a vacuum condition that is a function of the temperature of the cold water available. The vacuum conditions, and consequently the boiling temperature, are therefore variable.

HOW DOES A MULTI-EFFECT EVAPORATOR WORK?

A multi-effect evaporator uses the steam produced inside the first boiler to produce new steam in the second, at a lower temperature and pressure. This steam recycling can be cascaded (multiple effect) depending on the temperature of the first fluid heating step and the fluid cooling step during the last process. Although it is possible to go beyond two effects, above this number the investment cost becomes considerable and a solution involving a mechanical recompression evaporator becomes more efficient. 

HOW DOES A MECHANICAL VAPOR RECOMPRESSION EVAPORATOR WORK?

A mechanical vapor recompression evaporator or MVR utilizes the vapor generated inside the boiling chamber. This is compressed adiabatically (energy consumption depends on the compressor) with very high efficiency, the temperature rises and condensation takes place in the main heat exchanger, which transfers latent heat to the fluid to be evaporated. Furthermore, an auxiliary heat recovery system further optimizes the already extremely low energy consumption (approximately 35-40Wh/liter water, 25 times less than atmospheric evaporation).