Unsere Experten entwickeln innovative Lösungen für Projekte zur Grundwasserbehandlung. Die Anlagen von Veolia Water Technologies erfüllen die Bedürfnisse unserer Kunden und gewährleisten die Einhaltung strenger Vorschriften – von der Grundwassersanierung bis hin zur Trinkwassergewinnung.
Finden Sie heraus, wie wir Ihnen helfen können:
Grundwasser ist Niederschlagswasser, das im Untergrund zwischen Sedimenten und Gesteinsspalten versickert. Es ist eine der wichtigsten Quellen für Trinkwasser und die Bewässerung und kann auch wieder auftauchen, indem es Bäche, Flüsse und Seen speist.
In der Natur enthält selbst das sauberste Wasser Verunreinigungen. Das Grundwasser ist mit Schadstoffen wie etwa Chemikalien aus Industrie und Landwirtschaft belastet und seine Qualität variiert von einer Quelle zur anderen, so dass es vor dem Verbrauch desinfiziert werden muss. Um ein Höchstmaß an Trinkwassersicherheit zu gewährleisten, erfordert die Aufbereitung jeweils an die Situation angepasste Lösungen, einschließlich physikalischer und chemischer Technologien.
Grundwasser dient der Trinkwasserversorgung und der Bewässerung. Es ist auch eine wichtige Wasserquelle für industrielle Prozesse.
Eine Grundwasserreinigung unter Einhaltung strenger Vorschriften verhindert, dass schädliche Stoffe zu den Endverbrauchern gelangen. Behandeltes Grundwasser ist einer der Hauptbestandteile des Wasserkreislaufs, und seine Qualität und Quantität ist für die Erhaltung des ökologischen Gleichgewichts von entscheidender Bedeutung. Der wirtschaftliche Wert von Grundwasserschutz und -sanierung ist bereits erwiesen.
Wie Veolia Kunden hilft, hohe Standards bei der Grundwasseraufbereitung zu erreichen
Wir bieten ein breites Portfolio effizienter Aufbereitungstechnologien, um aus Grundwasser hochwertiges Trinkwasser zu gewinnen. Der Aufbereitungsprozess kann die Schritte Belüftung, Filtration, Enthärtung, Desinfektion und Entfernung von Mikroverunreinigungen umfassen.
Trinkwasserschutz für heutige und künftige Generationen
Wir engagieren uns für unseren Planeten und unsere Kunden. Als Teil der Veolia-Gruppe haben wir unseren Beitrag zur Nachhaltigkeits-Agenda der internationalen Gemeinschaft im Einklang mit den UN Sustainable Development Goals festgelegt.
Hören Sie jetzt einen kostenlosen Podcast zum Nachhaltigkeitsziel 15: dem Schutz des Lebens an Land. Wir besuchen zwei Orte, an denen wir mit Grundwasseraufbereitungsverfahren zur Beseitigung von Umweltschäden beigetragen haben. Dazu gehören die Reinigung von Rohwasser aus einem stillgelegten Tagebau in Kanada und die Entfernung von Agent Orange aus Böden in Vietnam. Der Podcast steht in in englischer Sprache zur Verfügung.
Entdecken Sie unsere Technologien zur Reinigung von Grundwasser
Wir bieten eine breite Palette von Technologien für die Aufbereitung von Grundwasser mit unterschiedlichen Eigenschaften. Unsere Technologien sind unverzichtbar für öffentliche und private Akteure, die die Umweltauswirkungen ihrer Wassernutzung verbessern wollen.
Möchten Sie mehr über unsere Technologien zur Grundwasserreinigung erfahren?
Die Nutzung von Grundwasser für die Trinkwassergewinnung wird in vielen Fällen eine sicherere, wirtschaftlichere und nachhaltigere Alternative zu aufbereitungsintensiveren Rohwasserarten sein.

Rasmus Boe-Hansen
Innovation Manager - Water Supply
KRÜGER A/S
Kontaktieren Sie Rasmus über sein LinkedIn Profil
Services für die Grundwasser-Aufbereitung
FAQ zur Aufbereitung von Grundwasser
Wie lässt sich eine nachhaltige Grundwasserentnahme sicherstellen?
Es ist wichtig, das Grundwasser im Einzugsgebiet zu schützen, damit eine nachhaltige Entnahme aufrechterhalten werden kann. Zum Schutz müssen die Ressourcen kartiert und überwacht werden und es müssen Bedingungen und Einschränkungen für die Nutzung festgelegt werden. Zu weitere Maßnahmen gehören:
- Schutzzonen um Entnahmebrunnen
- die Begrenzung des Einsatzes von Pestiziden und Düngemitteln und
- die Minimierung von Aktivitäten, die das Risiko einer Grundwasserverschmutzung mit sich bringen.
Welches sind die gängigsten Methoden zur Grundwasserreinigung?
Die Behandlung umfasst in der Regel eine Belüftung zur Zufuhr von Sauerstoff und zum Strippen flüchtiger Verbindungen, eine Sandfiltration zur Entfernung von Partikeln und zur Unterstützung biologischer Prozesse sowie eine UV-Desinfektion als hygienische Barriere. Andere Methoden können die Enthärtung zur Verringerung des Kalziumausfällungspotenzials (CCP) und die Verwendung von Adsorptionsmitteln (z. B. Granulierte Aktivkohle - GAC) zur Entfernung von Mikroverunreinigungen umfassen.
Ist die Grundwasserbehandlung auf größere Wasservorräte anwendbar?
Obwohl die einfache Aufbereitung von Grundwasser eine dezentralere Versorgungsstruktur sehr begünstigt, können auch Gebiete mit hoher Bevölkerungsdichte von den Grundwasserressourcen profitieren. Natürlich muss das Wasser dann oft weiter vom Einzugsgebiet zur Aufbereitungsanlage transportiert werden. In dicht besiedelten Ländern wie Dänemark und den Niederlanden basiert die Wasserversorgung weitgehend auf Grundwasser.
Our experts at Veolia Water Technologies design innovative solutions for groundwater treatment projects meeting our clients’ needs, from water remediation to drinking water, complying with strict regulations.
Groundwater is the precipitation water infiltrated in the underground between sediments and cracks in rock. It is one of the main primary sources of drinking water and irrigation and can also resurface to replenish streams, rivers and lakes.
In nature, even the cleanest water contains impurities. Facing pollutants such as industrial and agricultural chemicals, the quality of groundwater and contaminants it may contain vary from one source to another which means it must be disinfected before consumption. In order to guarantee the highest safety level of drinking water, groundwater treatment must include specific and adapted solutions, including physical and chemical treatments.
Groundwater supplies drinking water and irrigation. It is also an important water source for industrial processes.
Complying with strict regulations, the most important benefit of groundwater treatment is to prevent harmful substances from reaching end-users. Also, as one of the main parts of the water cycle, the quality and quantity of groundwater treated is vital to keep environmental balance. Finally, the economic value of groundwater protection and remediation has already been proven.
How Veolia helps its clients to achieve high standards of groundwater treatment
Overall we provide a wide range of treatment technologies to efficiently produce high-quality drinking water from groundwater. The treatment train may include aeration, filtration, softening, disinfection and removal of microcontaminants.
- Reach very low cleanup criteria in soil and groundwater.
- Cleanup soil and groundwater below buildings and in delicate urban settings.
- Remove source zone/hotspot contamination.
- Remove deeply spread contaminations.
- Avoid excavation, disposal and any contact with contaminated soil.
- Provide you with a realistic evaluation of results that can be achieved.
Thermal soil remediation:
Soil remediation does not necessarily imply excavation, long-distance transportation, landfill or use of chemicals. Using in-situ thermal remediation you can reach impressive cleanup results in all geological formations by adding nothing but heat to the soil.
It is the most cost-effective way if the contaminants can be treated in the subsurface without excavation. The method is, safety-wise, attractive since you do not come into contact with contaminated soil. Generally speaking, a number of steel pipes are installed into the subsurface and heat is applied. As the soil is heated, the contaminants are destroyed or vaporized, captured by the extraction system and conveyed to the treatment plant. The technology can be applied in both saturated and unsaturated zones, in residential areas, below buildings, and to any depth.
Saving drinking water for present and future generations
We are committed to the planet and our customers. As part of Veolia Group, we have established our contribution to the international community’s sustainable development agenda, in line with the United Nations’ Sustainable Development Goals.
Listen now to a free podcast focused on Sustainable Development Goal 15 — protecting life on land. We visit two places where we have helped undo environmental damage with groundwater treatment processes such as purifying untreated water from an abandoned open-pit mine in Canada, and removing Agent Orange from soils in Vietnam.
Challenging groundwater treatment projects ensuring safe and effective remediation

To remove hazardous contamination and protect vital groundwater resources in Copenhagen, Denmark, our subsidiary Krüger A/S performed thermal soil remediation in extremely tight spaces in urban settings.
Most of the contamination was located beneath a two story building, housing an active print bookshop and a medical lab that both stayed in operation during the remedy. Heating and vaporizing contaminants beneath a building with people working in it requires a very secure and robust extraction approach.
By adding nothing but heat to the soil, we have ensured an effective and safe remediation of 7,000 m3 of soil. During four months of heating, the contamination (chlorinated solvents) was vaporized, safely extracted and captured by activated carbon, preserving clean and safe drinking water for present and future generations.
The results of more than 250 hot soil core samples demonstrated the average post-treatment concentrations below 0.04 mg/kg, which was far beyond the cleanup criteria.
Discover our technologies for groundwater treatment
We offer a full range of technologies for the treatment of groundwater with a variety of characteristics. Our technologies are essential for public and private stakeholders wishing to improve the environmental impact of their water use.
Would you like more information about our technologies for groundwater treatment?
The use of groundwater for the production of drinking water will in many cases be a safer, economical and sustainable alternative to more treatment-intensive raw water types.

Rasmus Boe-Hansen
Innovation Manager - Water Supply
KRÜGER A/S
Contact Rasmus through his LinkedIn account
More services for groundwater treatment
FAQ about groundwater treatment
How do you ensure a sustainable groundwater abstraction?
It is important that the groundwater in the catchment area is protected so that sustainable abstraction can be maintained. Protection requires that resources be mapped and monitored and that conditions and restrictions be set on utilization. Other measures may include protection zones around abstraction wells, limiting the use of pesticides and fertilizers, and minimizing activities in general that carry a risk of polluting groundwater.
What are the most common groundwater treatment methods?
Groundwater treatment typically includes aeration for the addition of oxygen and the stripping of volatile compounds, sand filtration for the removal of particles and support for biological processes, and UV disinfection as a hygienic barrier. Other methods may include softening for reduction of calcium precipitation potential (CCP) and the use of adsorptive media (e.g., Granular Activated Carbon - GAC) for removal of micro-contaminants.
Is groundwater treatment applicable to larger water supplies?
Although simple treatment of groundwater greatly supports a more decentralized supply structure, areas with high population density can also benefit from groundwater resources. Of course, this will often require the water to be transported further from the catchment area to the treatment plant. In densely populated countries such as Denmark and the Netherlands, the water supply is largely based on groundwater.
How clean does groundwater get?
For volatile organic compounds (VOCs), concentrations are reduced to less than 1 mg/kg and 0.1 mg/l in soil and groundwater, respectively. Where desired, the system may be operated long enough to achieve maximum concentration limit (MCL) concentrations in the groundwater, and non-detect in soils. For semi-volatile organic compounds (SVOCs) treatment in soils, non-detect concentrations have been achieved by treating at 300-350°C for a period of several weeks. Basically, the in-situ thermal desorption (ISTD) system can be designed for the desired remedial efficiency.
Which contaminants in groundwater can be treated and which cannot?
Nearly any organic compounds or a combination of organic compounds can be treated with in-situ thermal desorption (ISTD) / In-Pile Thermal Desorption (IPTD).
Contaminants to be treated with ISTD/IPTD are:
- Polychlorinated biphenyls (PCBs), dioxins and dibenzofuran
- Polycyclic aromatic hydrocarbons (PAHs) and coal tar
- Trichloroethene (TCE), tetrachloroethene (PCE), 1,2-dichloroethene (1,2-DCE), trichloroethanes (TCA), and other chlorinated solvents
- Pesticides and herbicides
- Petroleum and petroleum products
- Benzene, toluene, ethylbenzene, xylenes (BTEX)
- Methyl tertiary butyl ether (MTBE)
- Any other volatile or semi-volatile hydrocarbon
- Dense and light non-aqueous phase liquids (DNAPLs and LNAPLs)
- Mercury
Contaminants not to be treated are:
- Heavy metals
- Inorganics
How deep can thermal wells operate?
Thermal wells can be used to treat contaminants to theoretically hundreds of meters, as well as under structures and roads. The deepest full-scale application to date is 50 meters. However, thermal conduction heaters are also used for thermally enhanced oil recovery at depths of more than 300 meters.
Can In-Situ Thermal Desorption (ISTD) be used around buried utilities and adjacent to foundations?
Many types of buried utilities, such as concrete sewage lines and steel water lines can be left in place and/or protected during heating through placement of heaters and insulation. Some utilities (e.g., gas lines, PVC pipes) may need to be rerouted or decommissioned.
Since the heat front drops off sharply adjacent to the heated zone, experience has shown that heating adjacent to foundations typically has no effect on the foundations. However, measures can be taken to further protect structures, if necessary.
Several ISTD remediation projects have now been accomplished adjacent to or beneath buildings both in residential and industrial settings.
Does In-Situ Thermal Desorption (ISTD) create dioxins?
ISTD is quite different from ex-situ thermal desorption or incineration. With these aboveground thermal technologies, the soil or sludge being treated is exposed to high temperatures only briefly - typically for seconds or minutes. Thus, there can be cool spots where the soil does not get fully treated and where compounds such as dioxins can sometimes be created. By contrast, with ISTD the entire treatment zone is heated to target temperatures for days, at a minimum. Most (approximately 95-99%) of the organic contaminants are destroyed in-situ. Not only are dioxins not created, treatability and field data indicate they too are destroyed, typically to below background levels. Dioxins that are extracted are treated in the air pollution control system.
Does In-Situ Thermal Desorption (ISTD) prevent revegetation after treatment or sterilize the soil?
Immediately after ISTD treatment the soil is sterile, but experience shows that recovery will be rapid. After the soil is disked, fertilized and seeded, following normal revegetation practices, regrowth during the first growing season after treatment should be as good as with other soil. Microbiota residing outside the target treatment zone may see mildly elevated temperatures, which are likely to promote rather than hinder their growth and attenuative capacity.
How does In-Situ Thermal Desorption (ISTD) compare with other in-situ remediation technologies?
A major reason for the effectiveness of ISTD is its application of heat to the soil using thermal conduction. During conductive heating, heat moves out through the soil and waste material in a highly predictable fashion, regardless of how heterogeneous the soil is or its permeability. This is in sharp contrast to the movement of a fluid through the soil, which is the basis for nearly all other in-situ remediation technologies (e.g., groundwater pump-and-treat, soil vapor extraction, air sparging, steam injection, solvent and surfactant injection or chemical oxidant injection). Rates of fluid flow can vary over many orders of magnitude, depending on how permeable the soil is and on the degree of heterogeneity. Fluid-based technologies thus tend to bypass some contaminated zones, leading to poor efficiency, diffusion-limited mass transport and an extended duration of remediation. By contrast, the thermal conductivity of a wide range of soil types varies over less than a factor of plus or minus two.
ISTD has a wider applicability than other in-situ thermal technologies. For example, the process of electrical resistivity heating, also known as Six-Phase Heating or joule heating, relies on the flow of an electrical current through soil. Electrical conductivity can vary over two orders of magnitude. Since electrical currents ceases to flow in soils once the water has boiled off, moreover, electrical resistivity heating cannot heat the soil above the boiling point of water. As a result, it is not suitable in thetreatment of high boiling-point compounds such as pesticides, PCBs, and PAHs that require stringent soil cleanup levels. Similarly, steam injection in the shallow subsurface is limited to heating approximately to the boiling point of water.
Technical resources
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Technologies - Groundwater treatment

對 7,000 立方米的土壤進行有效和安全的修復,為今世後代保留清潔和安全的飲用水。
為了消除危險污染並保護丹麥哥本哈根的重要地下水資源,我們的子公司 Krüger A/S 在城市環境中極其狹窄的空間內進行了熱土壤修復。
大部分污染位於一棟兩層樓的下面,該大樓內經營著一家印刷書店和一個醫學實驗室,二者在修復期間仍然運營。在建築物內有人工作的情況下加熱和蒸發建築物下方的污染物,需要使用一種非常安全且強大的提取方法。
透過加熱土壤,我們確保了 7,000 立方米土壤的有效和安全修復。在四個月的加熱過程中,污染物(氯化溶劑)經過蒸發被安全提取出來並使用活性碳進行捕獲,為今世後代保留了清潔和安全的飲用水。
超過 250 個熱土芯樣的結果表明,處理後的污染物平均濃度低於 0.04 mg/kg,遠遠超出了清理標準。