Thermal Desorption System for Oil-Contaminated Soil Remediation | Desen Environmental
Oil-contaminated soil poses a major challenge to environmental protection and ecological restoration. Once petroleum pollutants penetrate the soil layer, contaminants can quickly spread and attach to soil particles, damaging soil structure, disrupting ecological balance, and threatening surrounding
Oil-contaminated soil poses a major challenge to environmental protection and ecological restoration. Once petroleum pollutants penetrate the soil layer, contaminants can quickly spread and attach to soil particles, damaging soil structure, disrupting ecological balance, and threatening surrounding groundwater, vegetation, and residential environments. Due to the complexity and long remediation cycle of oily soil pollution, efficient treatment technologies are essential for successful contaminated land restoration.
With years of experience in environmental remediation equipment manufacturing, Desen Environmental has developed a professional thermal washing system for oil-contaminated soil, providing an efficient and practical solution for petroleum-contaminated land remediation projects.

Efficient Separation of Oil, Soil, and Water
Oil pollutants often strongly adhere to soil particles, making conventional treatment processes less effective. The Desen thermal soil washing system is specifically designed to address this challenge through a targeted treatment process that gradually weakens the adhesion between oil contaminants and soil particles.
Using advanced thermal washing technology, the system effectively removes oil trapped on soil surfaces and within soil pores, achieving efficient separation of oil, soil, and water while preserving the original soil structure.
The system is suitable for treating various types of oily contaminated soil, including:
Oilfield contaminated soil
Petroleum sludge and oily waste soil
Chemical plant oil-contaminated soil
Fuel storage and leakage contaminated sites
Industrial oily soil remediation projects
Its adaptable processing capability allows efficient treatment across different soil types and contamination levels.
Integrated System Design for Continuous Operation
The Desen thermal washing system adopts an integrated modular structure that combines multiple processing stages into one complete remediation solution.
The system includes:
Soil pretreatment
Thermal washing treatment
Separation and classification
Water recycling
Oil recovery and resource utilization
Each processing stage is seamlessly connected, enabling continuous and automated operation without complicated segmented workflows.
The compact system design allows flexible deployment according to project requirements. It can serve both permanent large-scale treatment facilities and temporary emergency remediation projects, helping reduce installation time and improve overall project efficiency.
Environmentally Friendly and Resource-Recycling Technology
Environmental sustainability is a key feature of the Desen oily soil treatment system. The process primarily relies on physical treatment technology, minimizing the generation of additional harmful pollutants and effectively preventing secondary contamination.
The system also supports resource recycling through:
Wastewater treatment and reuse
Reduced water consumption
Oil recovery for potential resource reuse
Reuse of treated soil for backfilling or land restoration
By combining pollution reduction with resource recovery, the system helps lower total remediation costs while improving environmental performance and project sustainability.
Reliable Performance for Modern Soil Remediation Projects
With mature processing technology and stable operating performance, the Desen Environmental thermal washing system has already been successfully applied in multiple contaminated soil remediation projects.
The equipment has earned recognition from industry professionals and project owners for its:
Stable and continuous operation
Reliable remediation performance
High treatment efficiency
Environmentally responsible processing
Flexible deployment capability
Supporting Sustainable Contaminated Land Restoration
As environmental standards continue to become more stringent worldwide, modern soil remediation projects increasingly require efficient, sustainable, and environmentally friendly treatment solutions.
Desen Environmental remains committed to advancing oily soil remediation technology through continuous innovation in thermal washing systems and remediation processes.
By delivering professional equipment and optimized treatment solutions, Desen helps accelerate the restoration of oil-contaminated sites, protect soil ecosystems, and promote the sustainable development of the environmental remediation industry.