news

Learn how mobile screening plants improve soil remediation efficiency. Desen Environmental's DS15SE two-deck heavy screen pre-classifies contaminated soil for optimal downstream treatment.

Effective soil remediation begins long before chemical treatment or thermal desorption enters the picture. The quality of preprocessing — specifically, how well contaminated soil is screened and classified — directly determines the efficiency and cost-effectiveness of every downstream treatment step. A mobile screening plant serves as this critical first-stage operation, removing oversized debris, homogenizing feedstock, and protecting expensive treatment equipment from damage.

The DS15SE Heavy-Duty Mobile Screen

Desen Environmental's DS15SE is a trailer-mounted, two-deck heavy-duty screening plant designed for demanding remediation site conditions. With a processing capacity of 60–200 tons per hour and customizable screen apertures (20mm, 30mm, 40mm, 60mm and more), it precisely classifies incoming material into three size fractions in a single pass.

The unit weighs only 13.5 tons and travels on a standard three-axle trailer, making it easily transportable between project sites. Its 28.5 kW power requirement keeps operating costs low, while the 14°–20° adjustable screen box angle optimizes separation for different material types and moisture levels.

Why Pre-Screening Matters for Remediation Performance

Contaminated soil arriving at a treatment site is rarely homogeneous. It typically contains a mix of fine soil particles, gravel, construction debris, organic matter, and occasionally large rocks or concrete fragments. Feeding this heterogeneous material directly into washing systems, bioremediation piles, or thermal units creates multiple problems:

• Equipment damage: Oversized objects jam scrubbers, damage conveyor belts, and wear down pump impellers
• Uneven treatment: Large lumps receive insufficient contact time with washing solutions or biological agents
• Process instability: Fluctuating feed characteristics cause throughput variations and inconsistent treatment quality
• Wasted capacity: Clean oversize material occupies treatment volume unnecessarily

A mobile screening plant deployed ahead of the main treatment line eliminates these issues. It separates clean oversize for direct reuse, removes debris that would damage downstream equipment, and delivers a uniform, sized feedstock that ensures consistent treatment performance.

Real-World Applications Across Project Types

The DS15SE has proven its value across diverse remediation scenarios. At a bioremediation project in Ningxia, China, the mobile screen performed full-site homogenization preprocessing, achieving the uniform particle size distribution essential for effective microbial treatment. At several soil remediation projects in Chongqing and Nanjing, the unit served as the front-end classification stage, preventing blockages and load fluctuations in downstream washing equipment.

In a landfill mining and resource recovery project in Shenzhen, the DS15SE demonstrated its versatility by separating plastics, films, large stones, sand, and residual soil from complex aged refuse — enabling material-specific recovery pathways and significant landfill volume reduction.

Integration with Complete Remediation Systems

Mobile screening plants complement Desen Environmental's broader product ecosystem. They pair naturally with mobile soil washing plants for on-site treatment, with modular washing systems for large-scale projects, and with slurry treatment systems for dredged sediment processing. This integration capability makes the DS15SE a versatile asset for environmental contractors managing multiple project types and site conditions.

For project managers and remediation engineers, investing in proper preprocessing with a mobile screening plant delivers measurable returns: higher treatment throughput, lower equipment maintenance costs, and more predictable project outcomes.