A Simplified Comparison : MEE vs. MVRE

A Simplified Comparison: MEE vs. MVRE


Goldfinch Evaporation Systems offers two main types of evaporators: Multiple Effect Evaporators (MEE) and Mechanical Vapour Recompression Evaporators (MVRE). Both are designed to enhance efficiency in industrial processes, especially in wastewater treatment and resource recovery. Here’s a simplified comparison to help you decide which system suits your needs best.

Multiple Effect Evaporators (MEE):

How MEE Works:

  • MEE uses a series of stages (or effects) to evaporate water.
  • Vapor from each stage of MEE is used to heat the next stage.
  • MEE reduces energy consumption by reusing heat.


  • Energy Efficiency: High steam economy. For example, 1 kg of steam can evaporate up to 3 kg of water in a three-effect system.
  • Cost-Effective: Lower operational costs due to reduced steam usage.
  • Scalable: MEE is easily scalable by adding more effects.
  • Applications: Ideal for industries needing large-scale evaporation with lower energy costs, such as food processing, pharmaceuticals, and wastewater treatment.

Mechanical Vapour Recompression Evaporators (MVRE):

How MVRE Works:

  • Uses mechanical compressors to recycle vapor within the system.
  • Significantly reduces the need for external steam.


  • Minimal Steam Requirement: Requires very little external steam.
  • Compact Design: Smaller footprint compared to MEE, suitable for space-constrained installations.
  • High Efficiency: Lower overall energy consumption due to minimal steam use.
  • Applications: MEE is effective for treating wastewater with high Total Dissolved Solids (TDS), where biological treatments are ineffective.

Key Differences:

Energy Source:

  • MEE: Primarily relies on steam. Reuses heat between stages.
  • MVRE: Uses mechanical compressors to recycle vapor, reducing steam dependency.


  • MEE: Fewer moving parts, generally lower maintenance.
  • MVRE: Involves mechanical parts, requiring regular maintenance but has a lower utility cost due to reduced steam usage.


  • MEE: Typically requires more space.
  • MVRE: More compact, better for limited space environments.

Which One to Choose?

  • For Large-Scale Operations: MEE is preferred due to its high steam economy and scalability.
  • For Space-Constrained or High TDS Applications: MVRE is advantageous for its compact design and efficiency in treating challenging wastewater.


Goldfinch Evaporation Systems provides both MEE and MVRE technologies to meet various industrial needs. Each system offers unique benefits tailored to specific applications, ensuring optimal efficiency and cost-effectiveness.

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