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Petroleum hydrocarbons act like a “black shackle” on soil. From crude oil spills at oilfields to leakage accidents in chemical parks and underground seepage at gas stations, petroleum pollutants can severely damage soil aeration and fertility. Worse still, they may infiltrate groundwater and trigg

Petroleum hydrocarbons act like a “black shackle” on soil. From crude oil spills at oilfields to leakage accidents in chemical parks and underground seepage at gas stations, petroleum pollutants can severely damage soil aeration and fertility. Worse still, they may infiltrate groundwater and trigger cross-regional contamination. Traditional remediation technologies often suffer from low efficiency or secondary pollution, making them unsuitable for modern, complex treatment needs.

Densen Environment addresses these challenges with a comprehensive system of intelligent, high-efficiency, and scenario-adaptive remediation equipment. Through technological innovation, we unlock a clean and sustainable recovery path for petroleum-contaminated soils.

Revolutionary Intelligent Circulating Soil Washing System: Precision Separation & Resource Recovery

The flagship Intelligent Circulating Soil Washing System reshapes the remediation process with a “precision separation + resource recovery” approach. Equipped with Densen’s proprietary rapid pollutant detection module, the system can identify types and concentrations of petroleum hydrocarbons, BTEX, PAHs, and other contaminants in real time.

The entire system operates in a closed-loop design. After purification through the regenerative unit, the washing solution is recycled at a rate of over 95%, ensuring zero wastewater discharge. Recovered oil residues can be processed and reused as industrial fuel. The treated soil—uniform in particle size and restored in fertility—can be safely applied to ecological restoration or construction backfilling, delivering both environmental and economic benefits.

Thanks to its modular configuration, the system supports flexible capacity combinations from 10 to 100 tons per hour, making it ideal for large-scale remediation in chemical industrial parks or precise treatment in small, contaminated sites.

Mobile Rapid Response Remediation Station: Built for Emergency Pollution Control

For unexpected contamination incidents, the Mobile Rapid Response Remediation Station offers exceptional on-site flexibility and rapid deployment. Featuring an integrated vehicle-mounted design with an off-road chassis, it can easily access oilfields, mountainous regions, and difficult terrains without requiring site construction.

The station integrates compact washing, centrifugal separation, and reagent preparation units, enabling it to process 5–15 cubic meters of contaminated soil per hour—ideal for urgent scenarios such as gas station leaks or pipeline ruptures. It can quickly define contamination boundaries and stabilize pollutant spread.

Enhanced with a 5G intelligent control system, operators can monitor data and adjust parameters remotely, ensuring high efficiency without direct contact with pollutants.

Customized Technologies for Harsh and Special Working Conditions

Densen Environment breaks industry limitations with purpose-built remediation solutions for special conditions:

• High-concentration heavy oil contamination
  A “low-temperature pyrolysis + mechanical scrubbing” hybrid process decomposes stubborn heavy oil into separable light components, significantly improving removal efficiency.

• Desert oilfield sandy soils
  Wind-sand-resistant structural designs and moisture-retaining washing agent formulations ensure stable performance even in extremely dry environments.

• Coastal saline-alkali contaminated soils
  Enhanced anticorrosion modules and desalinization processes tackle both petroleum pollution and soil salinization simultaneously.

These customized solutions have been successfully deployed in Western China’s oilfields, Middle Eastern desert oilfields, and coastal chemical parks, effectively solving pollution challenges across diverse scenarios.

Technology-Driven Strength: R&D Innovation and Rigorous Quality Control

Densen Environment’s technical advantages stem from continuous R&D investment and strict quality management. In collaboration with universities and research institutions, we have established specialized R&D teams focusing on eco-friendly washing agents, intelligent detection technologies, and low-carbon processes—resulting in multiple national patents.

Supported by two modern manufacturing bases, each piece of equipment undergoes precision production and rigorous factory testing, ensuring long-term reliability and stability.