Advantages
Safe and sustainable: the redox stoichiometric calculation of the injection quantities via the pollutant content yields a long-lasting depot effect.
Targeted and reliable: the exact coordination of the particle mix, injection medium and injection process enable a targeted deployment of the particles into the contamination hotspots.
Minimally invasive: application also possible under built-on and used terrain; the costs of excavating the soil or the plant-intensive extraction of water are eliminated.
With the injection of our patented NMP, we achieve an exact and sustainable treatment of the contaminated aquifer. We select the required intrarem® nano- and microparticles (NMP) and configure them individually for the particular site. For this purpose, we have more than 20 different nano- and microparticles at our disposal, which are combined into 5 processes:
The NMPs act as oxidative or reductive reagents, or as adsorption and enrichment agent, or as redox-active precipitants, with the elimination or immobilisation of the pollutants as the final goal.
The transport ranges in the subsoil total up to 20 m according to the particles and site. The NMP application is carried out as rigorously as possible. In this context, the focus is on the hotspots with the highest concentrations and on their main displacement paths.
With our intrarem® NMP we can perform source and plume remediation, support Pump & Treat systems or protect wells – just as required by the site.
The process starts with the delivery and conditioning of the particle suspensions at the site. The space required for this requires a working area of less than 10 square meters.
Injections are made via Direct Push or via filter sections of existing monitoring or injection wells. The process is usually completed within a few days.
During the injections, the surrounding monitoring wells are continuously monitored using various methods to track the spread of the injection media and particles.
In the aquifer, the particles spread within the desired radius during injection. This can be specifically controlled by modifying the surface coatings and injection media. Blocking of the pore space does not take place.
The particles then irreversibly attach themselves to the aquifer matrix – the degradation of the pollutant can begin.
