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.

Environmental nanotechnology represents a tremendous benefit for underutilized brownfield sites in Europe and around the world.

– Daniel W. Elliott, Ph.D., Geosyntec Consultants

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.

Advantage of the situ NMP-Groundwater remediation


For the oxidative decomposition of mineral oil pollutants

The typical contamination profiles in the petrochemical, oil and gas industries mostly consist of BTEX, PAH, MOH and MTBE – as a highly concentrated source contamination with free NAPL or highly mobile contaminant plume. With intrablue® we are able to adapt our remediation strategy to such scenarios on a flexible basis.

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For the degradation of halogenated pollutants

intrablack® is the sustainable and exceptionally effective alternative to conventional iron – and this applies with equal regard to mobility during injection, sustainable reactivity and effectiveness as well as to CHC damage of every scope. Organic halogen pollutants such as PCE and TCE are effectively and permanently immobilised, being degraded into ethylene and ethane.

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For the rapid, effective adsorption of pollutants

And on a sustainable basis: intragreen® can be precisely adapted to the different adsorption behaviour of the respective pollutants. For organic pollutants, intragreen® is used on the basis of highly efficient activated carbon.

For heavy metals and semi-metals such as zinc, nickel, lead or arsenic, we use colloidal organo-iron oxides which have a high specific surface area.

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For the highly effective precipitation of heavy metals

intrared® is a highly effective process for the precipitation of redox-sensitive heavy metals such as chromium, uranium or technetium. intrared® forms stable, redox-active precipitation zones in which the previously dissolved pollutants are deposited in the form of largely insoluble solids. In this way, the further displacement of the highly toxic pollutant in the effluent is prevented on a permanent basis. The deposit effect of the injections also prevents the rebound of the pollutant concentration.

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For the treatment of persistent pollutants

With intrawhite®, combined adsorption and reaction zones can be created in which especially persistent pollutants can be enriched and degraded on a successive basis.

The preferred areas of application include effluent plumes of persistent organic pollutants such as phenols, large PAH molecules (starting from 3-ring PAH), halogenated hydrocarbons such as dichloromethane and chlorobenzene, or MTBE.

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