Drum Evaporators
Efficiently Dewater Small Volume Waste Streams





Evaporation is a time-tested & cost-effective method for reducing the volume of water-based waste
Hauling is Costly
Industrial and commercial facilities that generate wastewater spend too much money paying for hauling & disposal of waste streams that are mostly comprised of water.
Evaporation is Cost Effective
ENCON Evaporators are utilized by 2,000+ facilities worldwide to evaporate the water portion of water-based wastes, reducing hauling/disposal volumes and cost by up to or even exceeding 99%.

Advantages of ENCON Drum Evaporators
- Concentrate, Dry & Dispose of residue in one drum
- Can handle different waste streams simultaneously
- Can handle very challenging and complex waste streams
- Dramatically reduces disposal volume & cost
- Eliminates sewer discharge accountability
- Achieve ZLD
- Easy to Operate
- Great for waste streams too concentrated for traditional evaporators
- Requires less operator intervention than most wastewater treatment technologies
What is a Drum Evaporator?
ENCON Drum Evaporators are electrically heated small volume evaporators that are easy to use and economical to operate. The DE-2 is a batch evaporator (auto-fill option is also available) that can process 200 gallons per 5-day week. The DE-4 is an auto-fill evaporator that can process 400 gallons per 5-day week.

How Does it Work?
Both models completely encapsulate a 55gallon drum of wastewater and heat from the outside, thereby eliminating contact of the heating elements with the wastewater. This makes the ENCON Drum Evaporator appropriate for not only standard wastewater streams that can be handled in other types of evaporators, but also for de-watering waste streams with high solid loading, such as water-based inks, paints, adhesives, and concentrated residue from other ENCON Evaporators.

Features

Hinged Lids and Side Walls for Easy Access

Simple to operate

Superior Fabrication
Polished 304 stainless steel exterior offers superior corrosion resistance over painted surfaces. A compression-fit 316 stainless steel mesh mist eliminator captures fine droplets within a durable stainless housing.

Concentrate & dispose of residue in one drum
Using a 55-gallon steel drum as the process vessel minimizes both handling and time consuming cleaning.
Process Description

Step 1

Step 2

Step 3

Step 4

Auto Fill Operation
(DE-4, DE-2 with Auto Fill Option)
The ENCON DE-2 Drum Evaporator can be modified to run in the auto-fill mode (optional high-level probe required). The ENCON DE-4 only operates in auto-fill mode. This mode requires plumbing from a feed pump to the inlet on the top of the evaporator lid. This allows the automatic and continuous refilling of the evaporator between the height of the two level probes until either the high temperature set point is reached or there is no longer water to be processed in the feed tank.
Full Range of Upgrades, Accessories and Services to Unlock Your Evaporator’s Full Potential

ENCON offers a full range of upgrades, accessories and services to minimize labor and maximize return on investment.
Recover your wastewater as clean condensate with our condenser package!
Work with our consultative Sales Engineers to spec a turn-key system.
Utilize our air permitting / permit-exemption services.
Contact the ENCON Service team for the full lineup of upgrades and accessories
Free Application Feasibility Report
The centerpiece of our consultative approach is our complimentary bench scale analysis of your waste or process stream. This free analysis determines:
- How appropriate the stream is for evaporation
- Estimated reduction percentage
- Recommended materials of construction
- Recommended operating procedures.

Capacities & Dimensions
Model DE-2 | Model DE-4 | |
---|---|---|
Electric Requirements - V/PH/Hz (FLA) | 480V/3Ph/9.7 240V/3Ph/19.5 | 480V/3Ph/19 240V/3Ph/38 |
Available Non-Standard Voltages | 208V/3Ph, 220V/1PH, 575V/3PH, 380V/3PH, 400V/3PH, more | 208V/3Ph, 220V/1PH, 575V/3PH, 380V/3PH, 400V/3PH, more |
Evaporation Rate | 200 gallons per 5-day week* | 400 gallons per 5-day week* |
Heater Description | (Qty 6) 1.2kw low watt density elements | (Qty 12) 1.2kw low watt density elements |
Evaporator Dimensions | 42” diameter x 64” high (at exhaust stack outlet) | 42” diameter x 64” high (at exhaust stack outlet) |
Evaporator Weight (Empty) | 412lbs | 412lbs |
Exhaust Stack | 5” diameter insulated exhaust | |
Volumetric Airflow | 120 CFM at 70°F and 0.2 inches of water column | |
55 Gallon Drum Requirement | Open top, steel with 21–23” diameter x 34–36” high (supplied by Customer) | |
*Evaporation rate is based on tap water and auto-fill operation. Actual rate may vary based on waste stream | ||
Materials of Construction | Skins & Lids: Polished 304 Stainless Steel, 18 ga. Mist Eliminator Pad: 316L Stainless Steel. Insulation: 4” Insulation in Walls, 2” Insulation in Lids. | |
Controls Inputs | 316 Stainless Steel Low Level Shut-Off, 316 Stainless Steel High Level Shut-Off (With Auto-Fill Option: DE-4: Standard, DE-2: optional), Hastelloy C Type J Thermocouple, Cycle Timer | |
Control Panel | NEMA 12 & 13 Relay Control Panel, Digital Temperature Display, Cycle Time Digital Display, Selector Switch (1) – Main Power, Warning Lights (2) – High Temperature & Low Level, Indicators (2) – Main Power & Heaters | |
Quality | I/O Simulation: All I/O and Controls are Fully Tested to Ensure Accuracy/Functionality. Warranty: One Year for Parts and Workmanship Issues. |
Why Choose ENCON?
Superior Service & Support – We provide industry-leading technical support, ensuring customers receive prompt and knowledgeable assistance.
Consultative Sales Approach – Our expert sales engineers guide you through the process, including a detailed boil analysis of your waste stream to tailor the perfect evaporator solution.
Proven Industry Experience – With over 2,000 installations worldwide, ENCON evaporators are trusted by some of the largest companies, including 3M, GM, Ford, and Caterpillar, for their reliability and performance.
Wide Range of Heat Source Options – The most extensive selection of heat sources in the industry, ensuring the most cost-effective solution for any application.
Largest Thermal Evaporators in the Market – Designed to handle the most demanding industrial needs, with larger capacities than competitors. Proudly designed and manufactured in the USA.
Unmatched Reliability & Performance – ENCON evaporators are built for longevity, offering superior technical advantages and reliability over competitors.
Get a Customized Solution
ENCON Thermal Evaporators offer a wide range of customizable options and accessories to ensure the best fit for your wastewater treatment requirements. With so many configurations available, the best way to determine the right solution is to speak with an expert.
Contact a sales engineer today to discuss your needs and request a quote.
