Purification and remediation
of polluted soil
We are happy to tell you more
Purification of polluted soil
Polluting chemicals suitable for thermal treatment
By adjusting the functions and burning temperatures of the process, almost all chemicals may be treated. Polluting chemicals suitable for thermal treatment are all organic pollutants e.g.: mineral oils, solvents, VOCs, chlorophenols, PAH compounds, PCDD/Fs and PCBs. Heavy metals became in the process insoluble oxides and therefore stabilized in the soil.
Polluted soil can reused and used for future use
The machinery does not pollute the surroundings or discharge harmful chemicals during the purification process in the environment. All chemicals are oxidized into CO2. Contaminated soils are cleaned for future use e.g.: soil contraction, road building, landscaping purposes.
The high treatment temperature +850 – 1100 ºC eliminates hazardous chemicals for good. No post-purification monitoring of harmful chemicals is required, and there is no risk of the problems reappearing in the future. This treatment frees the owner of the area from any possible liabilities in the future. Environmental problems are not merely relocated, and will not be burdens for future generations.
Thermal desorpion process
of polluted soil
Suitable chemicals for thermal treatment
Emission Control: EU2010 level
Compound | Concentration mg/m3 of combustion gas* |
Total particles | 10 |
Total organic carbon (TOC) | 10 |
Hydrochloric acid (HCl) | 10 |
Hydrofluoric acid (HF) | 1 |
Sulphur dioxide (SO2) | 50 |
Nitrogen oxides (NOx) | 200 |
Carbon dioxide (CO2) | not required |
Carbon monoxide (CO) | 50 |
Metals: Cd + Tl | 0,05 |
Metals: Hg | 0,05 |
Metals: Sb + As + Pb + Cr + Co+Cu+Mn+Ni+V | 0,500 |
Dioxin/Furans (I-TEQ) | 0,1 (ng/m3) |
* Allowed by 2010/76/EY and 362/2003FI
What can you remediate?
Contaminant | HTTD * |
Semivolatiles | Applies good |
PAH | Applies good |
PCB | Applies good |
Pesticides/ herbicides | Applies good |
Volatiles (VOC) | Applies good |
Oil hydrocarbon | Applies good (C5–C>100) |
Chlorophenols (CPs) | Applies good |
PCDD/Fs | Applies good |
Syanides | Applies good |
Volatile metals (e.g. Hg) | Applies good |
Heavy metals | Can be oxidized into non-soluble form |
* HTTD = High temperature thermal desoption
Fuel alternatives for TDU
LNG, LPG, NG, BG |
Heavy oil, light oil |
Biofuels |
Recycled fuels |