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Engineering a 100 t/h Soil Washing Plant

A 100 t/h soil washing plant is a fully integrated treatment train rather than a single machine. Desen's DSLX-series fixed systems configure modular units into one continuous line:

• Hopper feed and pre-screening modules that condition raw soil for washing.
• Rotary drum scrubbers that break clay-bound aggregates and liberate contaminants.
• Multi-stage soaking, classification and fine-sand recovery modules that produce clean aggregate.
• Deep-cone thickeners and filter presses for efficient slurry dewatering.
• On-site water treatment that recycles more than 90% of process water.

Each module is independently engineered, so plant capacity can be scaled from 15 t/h up to more than 100 t/h to match project demand.

Proven High-Throughput Projects

Ningbo: China's First 100+ t/h Fixed Plant

The Ningbo project was the first fixed soil washing plant in China to exceed 100 t/h, setting a benchmark for large contaminated land remediation. Its high capacity allowed large volumes of polluted soil to be treated within a strict construction schedule.

Changsha Chromium Salt Factory

At the Changsha chromium salt factory, one of the largest single-site remediation projects in China, Desen supplied a 90 t/h washing system that treated chromium-contaminated soil at industrial scale, combining physical washing with chemical extraction.

Why Choose a Large Fixed Plant

• Maximum throughput to meet remediation deadlines on large site volumes.
• Continuous, around-the-clock operation with stable process control.
• Integrated water treatment that reduces fresh water consumption and discharge.
• Full DCS control with remote monitoring for compliance reporting.

Summary

For large contaminated sites, a 100 t/h fixed soil washing plant is the most economical route to timely, verifiable remediation. Desen's proven large scale systems combine high throughput, modular engineering and closed-loop water recycling to deliver reliable results on the biggest projects.