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Microbial activity

Projects

Sustainability
Sustainable use of freshwater resources
The role of sludge in infiltration ponds in OMP removal during dune infiltration

Drinking water utilities that use dune infiltration or riverbank filtration employ infiltration ponds with a sludge layer. This project investigates the role played by the thickness and conditions…

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Health
Biological activity
Biological stability parameters in operational practice

New methods for determining and predicting biological stability developed since 2010 are applied less often in daily drinking water practice than are the previously existing older methods. This,…

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Health
Biological activity
Drinking water biological stability in relation to temperature

The law establishes that drinking water temperature must be under 25°C. However, there aren’t any, or hardly any, measures available to actually keep the water temperature below this…

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Health
Biological activity
Microbiology during drinking water distribution

Drinking water in the Netherlands is distributed without any traces of disinfectants such as chlorine. The growth of microorganisms during the water’s distribution is contained by keeping the supply of nutrients in…

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Enabling technologies
Innovative water treatment technologies
Rapid, online detection of enterococci and of the total microbial activity in water

Current microbial analyses for the purpose of monitoring water quality are very time consuming. A technician is always required to conduct the sampling and, in most cases, the…

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Health
Biological activity
Value of legal and alternative regrowth parameters

The regrowth of microorganisms during the distribution of drinking water can lead to a number of problematic situations. Water companies therefore monitor drinking water quality very closely. Because of possible risks and…

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Health
Biological activity
Validation and standardisation of the BPP test for drinking water

Since regrowth of microorganisms in the water distribution system is not desirable, the Dutch water companies strive to produce drinking water with a low microbial growth potential. In…

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Experts

Frits van Charante
Scientific researcher
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Frits van Charante

Scientific researcher

Frits van Charante is a scientific researcher in the field of microbiological activity in man-made water systems. Frits did his doctoral research on the analysis and prevention of microbial biofilms…

030-6069585

frits.van.charante@kwrwater.nl

06-21614874

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Marcelle van der Waals PhD
Scientific researcher Project manager
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Marcelle van der Waals PhD

Scientific researcher Project manager

Marcelle van der Waals is a scientific researcher on Microbiological Water Quality and Health. Marcelle did her PhD research on microbiology in the field of biological degradation of contaminants at…

030-6069566

marcelle.van.der.waals@kwrwater.nl

06-11715232

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Peer Timmers
Scientific researcher
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Peer Timmers

Scientific researcher

Peer Timmers is trained in microbial ecophysiology. He applies as broad a range of chemical and molecular biological techniques as possible to determine which microorganisms are responsible for a particular…

030-6069636

peer.timmers@kwrwater.nl

06-15403473

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Paul van der Wielen PhD
Senior scientific researcher
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Paul van der Wielen PhD

Senior scientific researcher

Paul van der Wielen is Principal Scientist in the field of (micro)biological activity in water in man-made water systems, and a member of KWR's Scientific Council. He is also guest…

030-6069642

Paul.van.der.Wielen@kwrwater.nl

06-25241293

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Nikki van Bel PhD
Scientific researcher
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Nikki van Bel PhD

Scientific researcher

Nikki van Bel is a medior scientific researcher in the field of microbiological water quality and health, and has almost ten years' experience in microbiology. Nikki did her doctoral research…

030-6069516

nikki.van.bel@kwrwater.nl

06-31998085

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News

News

US committee recommends strong Legionella management measures, comparable to those in the Netherlands

15 August 2019 — Every year, 52,000 to 70,000 Americans are afflicted by Legionnaires’ disease, a pneumonia caused by certain Legionella species.…

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News

An ANSWER to the risks of antibiotics (resistance) with water reuse

16 July 2019 — Water reuse is an important weapon in the fight against water scarcity, but the purification and reuse of…

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Water Sector

Next step in research on L. pneumophila growth conditions

19 January 2017 — KWR has taken an extra step in our understanding of the conditions that favour the growth of L.…

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Blog

Seoul International Water Conference 2016

27 October 2016 — Organizers The Seoul Water Institute sponsored by the Ministry of Environment, the Korea Water and Wastewater Works Association,…

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