Excellent Corrosion Resistance Structure Two Phase Decanter
Centrifuge for Landfill Leachate and Hazardous
Description
Landfill Leachate & Hazardous Waste Sludge Decanter is designed for
continuous solid-liquid separation of chemical sludge and
biochemical sludge generated from landfill leachate, hazardous
waste treatment, incineration wastewater, and medical wastewater
systems.
For most landfill leachate and hazardous sludge applications, the
recommended configuration is a two-phase decanter centrifuge
because the main target is to separate solid sludge from
wastewater, reduce sludge volume, and lower disposal risk.
Best-Fit Applications
- Landfill leachate chemical sludge
- Landfill leachate biochemical sludge
- Incineration plant wastewater sludge
- Hazardous waste neutralization sludge
- Medical wastewater sludge
- High-salt wastewater treatment sludge
Typical materials include chemical sludge, biochemical sludge, flocculated solids, inorganic
precipitates, organic sludge, and high-salt wastewater sludge.
Why Two-Phase is Recommended
- The feed mainly contains sludge solids + wastewater.
- It is suitable for sludge after neutralization and flocculation.
- It helps reduce sludge volume and improve hazardous sludge handling
safety.
When Another Configuration May Be Considered
- If the feed contains oil, grease, or floating scum.
- If the sludge is highly abrasive or contains hard particles.
- If the liquid phase requires very high clarity, downstream
filtration may be needed.
How the Decanter Centrifuge Works in This Application
- Landfill leachate sludge or hazardous wastewater sludge enters the
rotating bowl.
- Under centrifugal force, heavier sludge particles move outward and
form a sediment layer.
- The screw conveyor continuously pushes the separated sludge cake
toward the discharge end.
- The clarified liquid phase is discharged through the liquid outlet.
- The sludge cake is collected for stabilization, drying,
incineration, or hazardous waste disposal.
Technical Parameter
| Model | Diameter (mm) | Length (mm) | Length-to-diameter rate | G force | Max solid discharge (m³/h) | Weight (kg) | Dimension (L×W×H) (mm) |
|---|
| PDC-10 | 250 | 1000 | 4 | 4080 | 0.4 | 1000 | 2410×800×1080 |
| PDC-12 | 4200 | 1350 | 4 | 3500 | 0.6 | 1200 | 2610×800×1080 |
| PDC-12 | 4200 | 1350 | 4.5 | 3180 | 1.2 | 1800 | 3495×840×1180 |
| PDC-18 | 4000 | 1600 | 4.5 | 3180 | 1.2 | 3200 | 3497×1020×1385 |
| PDC-18 | 450 | 2150 | 4 | 2500 | 2 | 3800 | 4447×1080×1385 |
| PDC-20 | 400 | 2250 | 4.5 | 2500 | 3.5 | 4000 | 4580×1140×1470 |
| PDC-21 | 530 | 2280 | 4.3 | 2500 | 5 | 5000 | 4924×1170×1540 |
| PDC-26 | 655 | 2800 | 4.3 | 2270 | 8 | 7000 | 4300×1900×1350 |
Typical Feed Conditions and Design Considerations
| Item | Typical Range / What to Confirm |
|---|
| Feed material | Landfill leachate sludge, hazardous waste sludge, incineration
wastewater sludge |
| Solids content | Usually 2–12% |
| Oil content | Usually low; confirm if oil exists |
| Particle characteristics | Fine, flocculated, corrosive, sometimes sticky |
| Viscosity | Low to medium |
| Temperature | Usually 20–70°C |
| Corrosion risk | Medium to high; confirm chloride, salt, ammonia nitrogen, pH |
| Capacity requirement | Confirm by m³/h or tons/day |
| Target result | Sludge dewatering, volume reduction, safer disposal |
Main Advantages in Hazardous Sludge Dewatering
- Continuous automatic operation
- Reduced sludge storage volume
- Lower hazardous sludge disposal cost
- Suitable for high-salt and high-ammonia-nitrogen wastewater sludge
- Optional anti-corrosion material design
- More stable sludge cake discharge
- Reduced risk in sludge handling and transport
Expected Results
With proper neutralization, flocculation, and stable feeding, this
decanter centrifuge can typically achieve:
- 75–95% solid capture rate
- 60–90% suspended solids reduction
- 18–35% cake solids content
- 65–82% final cake moisture
- 30–60% sludge volume reduction
- 20–45% lower sludge handling / disposal load
- 16–24 hours/day continuous operation
Actual results depend on sludge composition, salt content, ammonia
nitrogen level, pH, polymer dosing, floc strength, and corrosion
conditions.
FAQ
Is this machine suitable for landfill leachate sludge?
Yes. It is suitable for chemical sludge and biochemical sludge from
landfill leachate treatment systems.
Can it handle high-salt sludge?
Yes, but material selection is important. For high-salt and
corrosive sludge, anti-corrosion materials should be considered.
Is polymer dosing required?
Usually yes. Polymer dosing helps improve floc formation, solid
capture, and cake dryness.
Can the liquid phase be discharged directly?
Not usually. The clarified liquid normally returns to the
wastewater treatment system for further treatment.
What information is needed for model selection?
Please provide feed material, capacity, solids content, pH, salt
content, ammonia nitrogen level, temperature, polymer dosing
condition, and target cake moisture.
Send Us Your Project Data
To recommend a suitable model, please share:
- Feed material name
- Capacity requirement
- Solids content
- Salt content
- Ammonia nitrogen level
- pH value
- Temperature
- Target cake moisture
- Polymer dosing condition
- Corrosion requirement
- Operating hours
- Site voltage or control preference
Our engineering team can suggest a suitable two-phase decanter centrifuge configuration for your landfill leachate or hazardous waste sludge dewatering
project.
Contact Peony for Cooperation
If you have local project resources or customer channels in
wastewater treatment, hazardous waste treatment, landfill leachate,
or sludge dewatering, please contact Peony.
Send us your target market, customer type, project background, and
cooperation proposal. Our team will evaluate the opportunity and
provide technical and commercial support for suitable projects.
