SIGMA™ Model VDT
Vacuum Distillation Systems for
Waste Reduction & Waste Recycling
 

If you have plating tanks, rinse water applications, cleaning processes or any contaminated water sources, Wastech's SIGMA VDT solution will reduce your costs and improve your process. It will eliminate or dramatically lower “hauling” charges by waste disposal companies. It also allows zero discharge applications which demand that water waste be reduced in volume or recycled.

Applications

• Eliminate waste hauling of contaminated water.
• Concentrate heavy metal waste water.
• Reduce plating rinse water waste.
• Recycle wash water volume.
• Recover heavy metals and other insoluble solids.
• Recover materials sensitive to heat.
• Generate recycled water from wastewater.
• Closed loop solution for water - reuse systems.
• Zero Discharge opportunity.

• Standard models from 300 to 2000 gallons per day (waste water to be processed).
• Low temperature distillation for energy efficiency.
• Atmospherically sealed so there is no opportunity for an accidental discharge.
• May be located inside with remote heat ejector option.
• Fast startup for on demand treatment.
• Welded Plate and Frame heat exchanges eliminate gaskets and maintenance.
• Heat pump design eliminates fuel requirements and combustion byproducts.
• Robust process deals with large range of contaminants.
• Reduced energy cost compared to evaporators and distillers.
• Normally no permitting required since there are no emissions.

• Proven industrial components and sensors.

• PLC control with touchscreen operator interface.

• Designed for indoor or outside installation.

• Completely self contained heat and cooling.

• Electrically powered, no other utilities required.

• Programmable concentration level.

• Continuous process cycle with various output volumes.

• Complete NEMA 4X control panel, UL rated:
  - PLC control
  - Touchscreen monochrome operator interface
  - Automatic chemical dispensing
  - Manual or automatic pump controls
  - Operational alarms and communication

Options

• Sanitary piping "tri-clover" connections.

• Fully networkable Allen Bradley PLC.

• Rockwell Automation software.

• Color touchscreen HMI.

• NEMA 4X stainless steel or fiberglass panel.

• Secondary containment for entire skid.

• Vacuum chamber illumination.

• Automatic antifoam.

• Vacuum chamber access platform.

• Communications for remote monitoring.

• Remote mounted control panel.

• Transfer pump station.

• Remote tank level sensors for auto control.

Operational Guidelines

• Fully automatic operation.
• Requires less than two hours per week of maintenance.
• Can handle influent quality changes.
• Recovers 90-95% distillate (application dependent).
• Produces concentrated waste.
• Operational temperature between 90°-100°F.
• Can be operated by non-technical staff.

Construction Materials

• Vacuum Chamber is Stainless Steel.
• Wetted piping is PVC and CPVC.
• Skids are powder coated steel.
• Control panel powder coated steel.
• Pumps are Stainless Steel.

Specifications

Available Models

More information:

• White paper "Vacuum Distillation Offers a Low Temperature Solution for Solvent Recovery of NMP"
• Two-page data sheet "Sigma™ Model VDT Distillation Systems for Waste Reduction"