Biological remediation WAVIN started

The ground on the WAVIN Services site in Hardenberg has been contaminated with solvents for a long time. These substances were formerly used as degreasing agents. WAVIN has been controlling this groundwater contamination since the 1990’s. Ground water was be pumped up and treated above ground. But this approach was …

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Monitored Natural Attenuation (MNA)

Scientific research does not stand still. New types of bacteria are being discovered every year, such as those involved in the degradation of benzalkonium chlorides (BAC, a cleaning and disinfecting agent) and in 2017 a species that anaerobically degrades benzene. Many contaminants can be degraded by bacteria, also in soil …

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Feasibility and remediation plan

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When selling or redeveloping a plot or location, the suspicion of a soil or groundwater pollution being present brings along obligations. Orvion makes an inventory of soil pollution that are presen and a remediation strategy so that you not only know the extent of the contamination, but can also gain …

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Detecting calamities with DNA techniques

In 2016the Waterschap Rijn en Ijssel (Rhine and Ijssel Water Authority) suffered from inhibited nitrification at one of their treatment plants. The cause: a long-term discharge that was toxic to the nitrifying biomass. As a result ammonium in the sewage water was no longer successfully removed. This prompted us to …

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Measurement of antibiotic resistance

Antibiotic resistance (ABR) is seen as one of the greatest threats to public health. Already every year in Europe more than 25,000 people die from the consequences. These people are often already seriously ill. But young healthy people are also increasingly being hospitalised as a result of infections, such as …

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Big Data collected from three wastewater treatment plants

In water treatment it is bacteria that clean the water. So data about the micro-organisms in sludge is needed in order to have more insight and more control over the treatment process. With new technology from Oxford Nanopore Technologies that we use, this has become possible and affordable. An example …

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