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EVAPORATOR / CRYSTALLIZER

Evaporator Crystallizer

Product Details

Evaporator Crystallizer, an evaporator and crystallizer for the final stage of the Zero Liquid Discharge (ZLD) system. It uses vacuum to concentrate wastewater up to the saturation point in order to separate salts and solids as dry crystals, while recovering almost all of the distillate for reuse, enabling the system to achieve complete Zero Liquid Discharge. Suitable for wastewater with high TDS and a high solids content, using a Scraped Surface system to reduce scale build-up on the heat exchange surface.

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Key Features: Evaporator Crystallizer
  • Evaporates to the crystallization point, turning wastewater into dry solids
  • Scraped Surface / Stirred Scraper reduces fouling on the heat exchange surface
  • Vacuum system and Heat Pump for energy savings
  • Recovers almost 100% of the distillate
  • Handles wastewater with high TDS and solids
  • Supports the recovery of salts or valuable substances
  • Corrosion-resistant construction such as SS316, Duplex and Titanium
Benefits: Evaporator Crystallizer
  • Achieves complete ZLD with only dry solids remaining, eliminating effluent discharge issues
  • Recovers water and valuable substances for reuse
  • Maximizes disposal cost savings
  • Meets environmental regulations and sustainability goals
Working Principle: Evaporator Crystallizer
  • 1. Concentrate from the Concentrator stage is further evaporated under vacuum until the concentration reaches the saturation point.
  • 2. Salts/solids crystallize and separate from the water, with the scraped-surface unit preventing scale on the heat-exchange surface.
  • 3. The solids are separated and dried for disposal or recovery.
  • 4. The vapor is condensed into distilled water for reuse, with the heat pump recycling latent heat.
Supported Industries
  • Surface plating
  • Chemicals and pharmaceuticals
  • Electronics
  • Mining
  • ZLD projects that must reduce wastewater to dry solids and recover nearly all of the water
Product Highlights
  • Closes the ZLD loop completely, leaving only dry solids
  • Recovers almost 100% of the distillate
  • Scraped Surface reduces scaling and handles high TDS wastewater
  • Supports the recovery of salts and valuable substances
  • Saves energy with a vacuum system and Heat Pump

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