The pilot system for thermal cleaning of LNAPL contaminants consists of an electronic central controller and equipped multiple temperature array sensors, a voltage measuring network, current and electric power measuring units, Qualitative sensors for vapor monitoring and sensor for monitoring the suction pressure of liquids and vapors; was designed and built.

 In this system, Various soil LNAPL contamination scenarios and LNAPL pilot cleaning by ERH method were tested by equipping three-phase isolated power supply, groundwater pumping system, gas and vapor suction unit, vapor refrigerant and condenser and control switches.

Uses and applications

Pilot study of ERH method before implementation on the infected site to achieve optimal design of ERH system elements and effective cleaning of LNAPL contamination

Features and benefits of ERH Remediation

High efficiency in LNAPL cleanup

Need a short time to clean

Effective in fine sediments

Applicable to active areas and sites• Ability to integrate with other cleaning methods