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In soil remediation, mining restoration, municipal sludge treatment, and industrial solid waste disposal, washing treatment has become a core process for achieving reduction, harmless treatment, and resource recovery. With years of expertise in environmental equipment manufacturing, Desen Environmen

In soil remediation, mining restoration, municipal sludge treatment, and industrial solid waste disposal, washing treatment has become a core process for achieving reduction, harmless treatment, and resource recovery. With years of expertise in environmental equipment manufacturing, Desen Environment delivers advanced washing systems built on modular integration, intelligent closed-loop control, and high operational stability.

Our product portfolio includes mobile truck-mounted units, modular integrated systems, and fixed production lines, providing a complete solution that combines physical washing, chemical enhancement, and closed-loop water treatment—ensuring cleaner output, faster processing, reduced energy consumption, and compliant reuse.

1. Core Technology: Washing + Classification + Closed-Loop System

Desen’s washing systems integrate a full-process workflow including attrition scrubbing, multi-stage screening, targeted washing, solid-liquid separation, and water recycling. These systems are suitable for a wide range of materials, including:

• Heavy metal-contaminated soil

• Oil-contaminated soil and oily sludge

• River and municipal sludge

• Shield tunneling slurry

• Mining tailings and coal gangue

• Drilling waste and industrial residues

Through rotary scrubbing, high-pressure spraying, and particle size classification, contaminants are transferred from solid to liquid phases. The wastewater is then treated via thickening, filtration, and purification, achieving over 90% water recycling.

• Dewatered sludge meets backfilling standards

• Sand and aggregates are recovered for reuse

• Overall volume reduction reaches 80%–90%

Process configurations are adaptable:

• Heavy metals: Chelation-based washing

• Oil contamination: Thermal washing + surfactant enhancement

• Municipal sludge: Gentle physical washing to preserve soil structure and avoid secondary pollution

2. Key Advantages: Modular, Mobile & Intelligent

1. Modular Integration for Rapid Deployment
Standardized modules (feeding, screening, scrubbing, separation, water treatment, control) enable quick flange connections.
→ Commissioning completed in 2–3 days, reducing project timelines by up to 80% with minimal civil works.

2. High Mobility for All Scenarios
Mobile washing units and modular systems are road-compliant and easy to transport, ideal for:

• Urban confined sites

• Emergency remediation

• Remote mining areas

• Scattered contamination points
  → “Arrive and operate immediately” capability.

3. High Capacity & Reliable Performance

• Single unit capacity: 15–100 tons/hour

• Mobile units: 200+ m³/day

• Scalable systems: up to 500–1200 m³/day

• Continuous operation exceeding 1600 hours without failure

4. Intelligent Control System
Equipped with DCS, PLC automation, and IoT connectivity:

• Remote monitoring & control

• Automated dosing & liquid-solid ratio adjustment

• Fault alerts & data tracking
  → Reduced labor intensity, improved safety and consistency

5. Eco-Friendly & Cost-Efficient Operation

• Fully enclosed system with dust suppression & noise reduction

• Multi-stage wastewater treatment with closed-loop recycling

• Minimal freshwater consumption

• Reduced hazardous waste and maximized resource recovery
  → Supports green construction and carbon reduction goals