How to Choose a Soil Washing Plant: Mobile, Modular, or Fixed
Mobile Soil Washing Plants
Mobile soil washing plants are containerized, road-transportable systems designed for fast deployment and easy relocation. Desen's mobile washing units typically process 10-15 t/h and can be operational within 24 hours of arrival.
- Best for small to medium sites, multiple scattered sites, or temporary campaigns.
- Footprint is minimal, ideal where land access is limited.
- Units relocate between sites on trailers with minimal site preparation.
- More than 90% of process water is recycled on site.
Modular Soil Washing Systems
Modular soil washing systems balance throughput with flexibility. They assemble from standardized modules without concrete foundations and can be expanded as a project grows.
- Capacity of 15-100 t/h depending on configuration.
- Footprint of roughly 1,200 m2 for a 30 t/h line, adjustable to site layout.
- Operational about 15 days after arrival, with low civil engineering cost.
- Only 3-4 operators per shift thanks to DCS automation and 5G remote monitoring.
Fixed Soil Washing Plants
Fixed soil washing plants are permanent installations built for the largest remediation programs. Desen's flagship fixed plants exceed 100 t/h, including the Ningbo project, China's first 100+ t/h soil washing plant.
- Best for very large sites with long treatment campaigns and strict deadlines.
- Highest available capacity, ideal for hundreds of thousands of cubic meters.
- Full train of scrubbers, classification, dewatering and water treatment.
Decision Checklist
- How much soil must be treated and in what timeframe? Larger volumes favor modular or fixed plants.
- Is the site temporary or permanent? Temporary sites favor mobile units.
- What are the access and space constraints? Tight sites suit compact mobile units.
- What are the contaminant types? Confirm the plant configuration matches the treatment chemistry.
- What is the water and discharge situation? Ensure closed-loop water treatment is included.
Summary
Match the soil washing plant to the scale, schedule and location of your project: choose mobile for flexibility, modular for balanced throughput, and fixed for maximum capacity. Desen Environmental Technology supplies all three configurations with the engineering support to guide your choice.
