Dr. Frank Kleissen


With a Master degree in chemical engineering and PhD in Environmental Systems Analysis, Dr Kleissen’s main area of expertise is the use of mathematical models from a data perspective, including time-series analysis, model calibration, validation and application. He has also gained experience in Environmental Assessments, related to aquatic issues, hydrodynamic and water quality modelling (various dimensions) of marine, estuarine and freshwater systems (including groundwater). He has specialised in the effects of intake/outfalls (power stations, desalination, sewage treatment) and oil pollution modelling (fate of spilled oil) and risk assessment. He was instrumental in the development of the in the Netherlands accepted discharge test and the development of the European Guidance document on Mixing Zones.

dont miss

Spill assessment and operational modelling techniques

Modelling plays an important role in assessing effects of spills, such as oil and chemical spills, not only short term but also long term. The presentation will discuss what is needed to be able to use these models within assessments (for planning/permits etc) and how can they be used for short term operational forecasting. The presentation will address model setup/validation/calibration/accuracy, data requirements and how these model systems can be used to deliver the information that is needed.


  • Robert Mitchell: Speaking at the Contamination Expo

    Robert Mitchell - Japanese Knotweed on your site? So now what are you going to do?

  • Dr Ken Scally & Amy Parekh-Pross: Speaking at the Contamination Expo

    Dr Ken Scally & Amy Parekh-Pross - Advances in Air Testing & Environmental Forensics for Contaminated Sites.

  • Peter Atchison: Speaking at the Contamination Expo

    Peter Atchison - The Challenges and Opportunities of the Contaminated Land Industry in a post Brexit World

  • Abigail Johnson: Speaking at the Contamination Expo

    Abigail Johnson - Operator Challenges & Opportunities with the Brownfield Development Market

  • Joanne Kwan: Speaking at the Contamination Expo

    Joanne Kwan - Asbestos from soil - what is next to help you?