-Henan Zhengzhou Mining Machinery

Inquiry

Introduction

Thermal desorption is typically used to clean up soil that is contaminated with VOCs and SVOCs at depths shallow enough to reach through excavation.

Thermal desorption removes organic contaminants from soil, sludge or sediment by heating them in a machine called a “thermal desorber” to evaporate the contaminants. Evaporation changes the contaminants into vapors (gases) and separates them from the solid material.

Technical principle:

Through direct or indirect heat exchange, the organic pollutants in the soil are heated to a sufficient temperature so that the organic pollutants can be volatilized or separated from the polluted medium, thereby achieving the purpose of removing organic pollutants in the soil;

Technical application:

1) It is suitable for the removal of volatile and semi-volatile organic pollutants in soil and oil sludge;

2) Removal of heavy metal Hg in polluted soil;

System Components:

This system consists of seven main units: feeding unit, discharging unit, thermal analysis unit, condensation unit, waste water treatment unit, tail gas treatment and discharge unit, and electrical control unit.

Features

1. Thermal desorption may be faster and provide better cleanup than other methods, particularly at sites that have high concentrations of contaminants.

2. A faster cleanup may be important if a contaminated site poses a threat to the community or needs to be cleaned up quickly so that it can be reused.

3. Thermal desorption is being used or has been selected for use at over 70 Superfund sites across the country.