Biological stability of drinking water

New insight in treatment and distribution

Biological stability of drinking water is important to provide water that is microbiologically safe and pleasant to drink to the consumers. This is particularly relevant in drinking water distribution systems where water is delivered without maintaining a disinfectant residual, like in the Netherlands.

In this course, we will discuss the different aspects involved in biological stability of drinking water, at source, treatment, and distribution levels. Methods applied to evaluate biological stability will be described and their application addressed with examples from practice.

Experts from both academia and from water utilities will describe latest knowledge on critical parameters impacting biological stability.

Biologically stable drinking water

In this course, participants will learn about the following topics:

  • What is biological stability of drinking water?
  • What are the basic elements controlling microbial growth in drinking water?
  • What are methods to assess and study biological stability?
  • What are the factors influencing biological stability at source and treatment levels?
  • What are the factors influencing biological stability at  distribution level?

Meant for

Drinking water professionals, including project managers, advisors, process technologists, researchers concerned with water quality issues.

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  • Informatie
    Cursusleider(s): Mevr. Emmanuelle Prest (PWNT)
    Cursusdata: 15 en 16 maart 2022
    Dagindeling: Day course
    Locatie: Amsterdam
    The course location will be easily accessible by train and car
    Prijs: € 1.050,00 excl. btw
    Price is including course material and catering
    Roosterinformatie: This is a classical course which will takes place in the class. It is possible to join the course online.
    15 and 16 march 2022. Two full days of course from 9:00-17:00.
    Dit programma wordt in het Engels gegeven.
  • Programma


    Day 1 - Introduction, methods and impact of water treatment

    • General introduction on Biological stability / course introduction
      Emmanuelle Prest, PWNTechnologies
    • General overview of essential processes implied in biological stability
    • Emmanuelle Prest, PWNTechnologies
    • Methods to monitor and evaluate biological stability 1 - for detection of changes during water distribution
      Hans Vrouwenvelder, KAUST/TU Delft
    • Methods to monitor and evaluate biological stability 2 - to evaluate biostability / predict change in microbiology
      Paul van der Wielen, KWR / WUR
    • Exercises in groups on methods/case studies
    • Impact water source and water treatment on biological stability
      Bram Martijn, PWNTechnologies and Rinnert Schurrer, Evides

    Day 2 - Processes in distribution systems and premises plumbing

    • Impact of temperature, residence time and residual disinfectant on microbial growth
      Mirjam Blokker, KWR/ TU Delft
    • Interaction between different phases (bulk water, sediment, biofilm)
      Gang Liu, Chinese academy of Sciences/ TU Delft
    • Impact of hydraulics / sediment
      Mirjam Blokker, KWR/ TU Delft
    • Food chain in drinking water pipes
      Arco Wagenvoort, AqWa, The Netherlands
    • Aeromonas growth mechanism
      Nikki van Bel, KWR
    • Opportunistic pathogens / link with biostability / safety
      Paul van der Wielen, KWR / WUR
    • Building plumbings
      Frederik Hammes, Eawag Aquatic Research, Switzerland
    • Summary impact of different parameters on biological stability
      Emmanuelle Prest, PWNTechnologies