Glossary

Immunomagnetic separation columns are used to retain micro-organisms previously bound to magnetic particles. As the liquid flows through the magnetised column, the magnetically activated micro-organisms adhere to its walls. The magnet is then removed and the column rinsed with a measurement buffer via which the microorganisms leave the column.

Reservoir for surface water which is introduced to the groundwater after being filtered through gravel and sand.

Physical analysis procedure based on the properties of infrared light. It is used for the quantitative and structural determination of substances.

Contaminants that are either inhaled via the respiratory tract or absorbed through dermal contact.

Measurement system for establishing the hydraulic permeability of soil.

Remediation procedure whereby chemical oxidising agents (e.g.: potassium permanganate) are injected into the aquifer to remove contaminants.

With this process, reducing chemicals (e.g. molasses) are injected into the subsoil where they react with contaminants which are then chemically destroyed.

In-situ measurements are performed on site, i.e. under natural conditions. Measurement networks comprise multiple measurement stations, which are often distributed across large areas.

Natural or artificial materials which replace ions (charged particles) dissolved in water with other ions. The ions to be replaced are bound to the ion exchanger material, which itself releases ions into the solution.