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Evaporation Technology

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What Evaporation Technologies Does ENCON Offer?

ENCON's product lineup of built-to-ship evaporators spans five core evaporation technologies, covering waste streams from as small as 200 gallons per week to as large as 4,000 gallons per hour. Each system is designed around a specific combination of energy source, volume, and waste stream chemistry.

Thermal Evaporators

The ENCON Thermal Evaporator is the industry's most versatile evaporation system, available in capacities from 8 to 650 gallons per hour. Easy to install and operate, it is our most popular product line. It supports the widest range of heat sources available - natural gas, propane, electric, steam, waste oil, off-spec gas, and waste heat - making it ideal for facilities with existing energy infrastructure to leverage.
 
  • Capacity: 8 - 650 GPH
  • Heat sources: Gas, propane, electric, steam, oil, waste oil, waste heat
  • Best for: Facilities requiring flexible fuel options and broad capacity range
  • Our most popular product line.
Thermal HMI Side with HMI Screen Shown -1 Angle 1

MVR Evaporators (Mechanical Vapor Recompression)

The ENCON MVR Evaporator uses an energy-recycling process that recaptures and reuses steam energy from the evaporation process itself. This dramatically cuts energy consumption, delivering operating costs as low as $0.01 - $0.02 per gallon of water evaporated — an 80% to 90% reduction over other wastewater treatment options.

  • Capacity: 275 - 4,000 GPH.
  • Operating cost: As low as $0.01 - $0.02 per gallon
  • Energy savings: 80% - 90% over other wastewater treatment options.
  •  Recover clean distilled water for re-use or discharge to drain. 
  • Best for: High-volume applications where energy cost is a primary concern
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VHP Evaporators (Vacuum Heat Pump)

The ENCON VHP Evaporator uses a refrigeration heat pump cycle that transfers heat rather than generating it, making it five times more energy efficient than conventional electric evaporators that use resistive heating elements. Operating under vacuum, it evaporates water at lower temperatures, which also makes it well-suited for heat-sensitive waste streams.

  • Energy efficiency: 5x greater than standard electric evaporators
  • Capacity: 20 - 110 GPH.
  • Operates at reduced temperature under vacuum
  • Recover clean distilled water for re-use or discharge to drain.
  • Best for: Heat-sensitive streams, facilities seeking energy efficiency with electric power
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Drum Evaporators

The ENCON Drum Evaporator is engineered for small volume waste streams and those with very high solids loading. Unlike other evaporator designs, the heating elements never contact the wastewater directly, making it the right solution when high solids concentrations would foul or damage standard equipment.

  • Designed to process 200-400 gallons per week.
  • Designed for high-solids and viscous waste streams
  • Indirect heating prevents fouling and scaling on elements
  • Best for: Low volume waste streams and streams with elevated suspended solids
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Slurry Dryers

The ENCON Slurry Dryer takes evaporation a step further than evaporators. Slurry dryer technology can concentrate aqueous waste streams beyond saturation, drying both liquid waste and high-solids slurries into a dry, easily disposable solid. It handles a wide range of liquid solutions and sludges, producing a dramatically reduced solid residue that is straightforward to classify and dispose of.

  • Handles liquid waste and high-solids sludge
  • Output: Dry, solid residue - minimum volume, simplified disposal
  • Best for: Facilities targeting Zero Liquid Discharge (ZLD) or Minimal Liquid Discharge (MLD) outcomes
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How Do I Choose the Right Evaporation Technology?

The right technology depends on four factors: your waste stream's water content and chemistry, your target throughput volume, your available energy source, and your total cost of ownership goals. ENCON's engineering team can analyze your waste stream for free to recommend the best fit.

Use this as a starting guide:

If your priority is... Consider...
Lowest operating cost at high volume MVR Evaporator
Simple installation and operation with most heat source options Thermal Evaporator
Energy efficiency with electric heat VHP Evaporator
Small wastewater volume or viscous waste streams Drum Evaporator
Zero Liquid Discharge (ZLD) Slurry Dryer

Why Choose ENCON?

  • 30+ years of industrial wastewater evaporation expertise
  • 3,000+ installations across diverse industries worldwide
  • 100% American-made systems, manufactured in Hooksett, NH
  • Capacities from 200 gallons/week to 4,000 gallons/hour
  • Free waste stream analysis before any commitment
  • Ongoing support from an experienced applications & service team

Frequently Asked Questions - Evaporation Technology

Q: What is the capacity range of ENCON evaporators?
A: ENCON evaporators cover waste streams from as little as 200 gallons per week up to 4,000 gallons per hour. Thermal evaporators range from 8 to 650 GPH, Drum Evaporators process 2 to 4 GPH, VHP Evaporators process 20 to 110 GPH, while MVR Evaporators handle 275 to 4,000 GPH.
Q: Are ENCON evaporators made in the USA?
A: Yes. All ENCON evaporation systems are designed and manufactured in Hooksett, New Hampshire. ENCON has been building American-made evaporators since the company's founding, with its first thermal evaporator with mist pad technology introduced in 1993.
Q: What industries use ENCON evaporators?
A: ENCON systems serve a broad range of industries including metal finishing and plating, landfill leachate management, general manufacturing, food and beverage processing, pharmaceutical manufacturing, and chemical processing, among many others.
Q: How much does it cost to operate an evaporator?
A: Energy operating costs vary by technology and heat source. ENCON MVR Evaporators achieve costs as low as $0.01 – $0.02 per gallon — 80% to 90% less than thermal evaporation. VHP systems offer similar advantages for electric-heated applications. ENCON's Applications Engineers can estimate operating cost for your specific stream.
Q: Can I get a free assessment before purchasing?
A: Yes. ENCON offers a complimentary waste stream analysis that evaluates your wastewater's suitability for evaporation, recommends the appropriate technology, and identifies materials of construction. Contact ENCON's sales team to get started.