EVD · Evaporative dryer
Dry to 90%DS and beyond.
No flame. Low temperature.
The EVD is a low-temperature, heat-pump belt dryer. It takes cake straight off your press, or pre-dried by ELODE, and finishes it up to 90%DS+: a dry, stable product ready for maximum disposal flexibility.
-
90%DS+
output dryness — up to 95%DS observed in tests
-
75%+
typical weight reduction on municipal and industrial cake
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< 175°F
low-temperature heat-pump drying — no flame, no combustion
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COP 4
coefficient of performance — 4× the heat per unit of electricity
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Class A
dry, stable biosolids ready for beneficial reuse
How the EVD works
- 1
Shape
cake is extruded into strands for maximum surface area.
- 2
Evaporate
Hot, dry air under 175°F passes over the cake on three belts.
- 3
Recover the heat
moisture condenses out to a drain; the heat pump reheats the air and sends it back.
- 4
Discharge
dry, stable cake at up to 90%DS+.
Real EVD results
Real cake · %DS in → out
-
Municipal
18%DS 95%DS
-
Industrial
12%DS 90%DS
- Other applications:
- Paper & Pulp
- Pharmaceutical
- Chemical
- Food
- Dairy
- Breweries & Malt
- Textile
- Manure
- Drilling Mud
- Ethanol
- and more
How it compares
| ELODE 3000 | EVD 3000 | Typical Dryer | |
|---|---|---|---|
| Typical throughput | 36 wet tons/day | 3.3 wet tons/day | 50 wet tons/day |
| Drying performance | Up to 65%DS | Up to 90%DS+ | Up to 90%DS+ |
| Cost of entry | 3× | 1× | 10.5× |
| Footprint | 11 × 15 ft | 15 × 7.5 ft | 80 × 12 ft |
| Energy to remove 1 ton of water | 200–250 kWh | 300–400 kWh | 1,200 kWh |
| Additional equipment | Minor | Minor | Several required |
| Maintenance | Mid | Low | High |
EVD specifications
Six sizes, one design. From 3.3 to 19.8 wet tons/day.
| By model | EVD 3000 | EVD 9000 | EVD 18000 |
|---|---|---|---|
| Wet cake feed rate | ~3.3 wet tons/day | ~9.9 wet tons/day | ~19.8 wet tons/day |
| Water removal rate | 3,000 kg (6,600 lb) / 24 hr 125 kg (275 lb) / hr | 9,000 kg (19,800 lb) / 24 hr 375 kg (825 lb) / hr | 18,000 kg (39,700 lb) / 24 hr 750 kg (1,650 lb) / hr |
| Typical running (est.) | 41–48 kW | 133–141 kW | 265–275 kW |
| Peak draw** | 66 kW | 195 kW | 383 kW |
| Energy per ton of water removed | 330 kWh | 330 kWh | 330 kWh |
| Dimensions (L × W × H) | 15 × 7.5 × 8.5 ft | 34.5 × 7.5 × 8.5 ft | 64 × 7.5 × 8.5 ft |
All EVD models
| Input cake solids | 10–50%DS |
|---|---|
| Output cake solids | 40–90%DS+ · 95% max observed |
| Air temperature | Supply 140–176°F · Return 104–149°F |
| Power supply | 3-phase · 480 V · 60 Hz |
| Utilities required | Electricity + 1.5-in (DN-40) drain Optional vent duct |
| Construction | SS304 stainless steel; SS316 optional |
| Refrigerant | R134a |
| Shaping method | Strip cutting |
| Assembly required | Minor |
- EVD 3000
- EVD 6000
- EVD 9000
- EVD 12000
- EVD 15000
- EVD 18000
Every size shares the same belt, heat pump and controls — capacity scales by module.
** Peak = preheating coil, compressors, fans, gear motors, etc. Every sludge is different – specifications are subject to change to best suit your application.
Better together
Great alone. More efficient as a pair.
ELODE cuts most of the weight for a fraction of the energy. Feeding that drier cake into the EVD means a smaller unit, less runtime, and lower cost per ton to reach 90%DS+.
- Press · 15%DS
- ELODE · 35–45%DS
- EVD · 90%DS+
First in America
America's first EVD lands in Alabama — 2026.
Follow the install — video and details land on our References page as the unit comes online. More EVD installs are in the pipeline for the coming years.
See it in action →Dry before you buy.
See your sludge at your target % solids before spending on equipment.
(201) 568-7778 · Mon–Fri 9am–5pm ET