Biological purification

This technique is based on the biological degradability of certain contaminants and the presence of specific bacteria, which are capable of converting the given contaminants into harmless final products.

These contaminants mainly include linear hydrocarbons like diesel, gasoline, petroleum or mono-aromatic hydrocarbons like naphthalene, benzene, styrene, toluene, ethyl benzene and xylene.
By means of specific bacteria and the creation of the most favourable conditions possible, these hydrocarbons are broken down to the final harmless products water and CO2.
Important parameters in this production process are a.o. moisture, temperature, pH, present nutrients, level of oxygen, and level of humic acids. For this purpose, Bioterra has invested to control these parameters as much as possible.
After evaluation of the soil, it is filtered, in order to remove all stones and other materials that are alien to the soil.
After that, the soil is placed in so-called ‘biopiles’ to generate the actual processing.

A so-called conversion machine is used to aerate the soil in production, which also homogenizes en crumbles the soil.

Basic reaction production process:

CxHy + O2 --> CO2 + H20

After purification, the soil is transported to a new destination to be reused efficiently. Depending on the achieved final concentration, this can be reused as soil or in a constructional application.
Of course our specialized team of scientists is constantly looking for optimization of this process, based on a combination of experience and professional literature.

Production schedule