Modelling constructed wetlands withBIO_PORE (COMSOL MultiphysicsTM)
and the HYDRUS Wetland Module11-13 September 2015
Pre-conference workshop
to WETPOL 2015
York, UKAbout the workshop
Numerical models for constructed wetlands (CWs) have been gaining more and more interest over the last decade.
The workshop is conceived to train participants on principles and mathematical analysis of water flow and pollutant
transport processes in subsurface flow CWs. BIO-PORE and the HYDRUS Wetland Module, the state-of-the-art
software packages for CW modelling will be used in the workshop. "Hands-on" computer sessions will provide
participants an opportunity to become familiar with the software packages. During the hands-on sessions, delegateswill work on models for different types of CWs, including vertical and horizontal flow systems. Basic requirements forand common pitfalls during modelling CWs will be discussed. Practical application of models will be the final main
target of the workshop.
During the first day, the focus will be on general aspects of CW modelling and on modelling water flow. The second
day is devoted to biokinetic models, i.e. models that are used to describe the biochemical transformation anddegradation processes occurring in CWs. During the last day specific topics such as modelling the influence of wetland
plants as well as modelling clogging processes will be discussed and simulated.
Participants of any background are welcomed. No previous experience in modelling is required.

Why should you attend?
After attending this 3-day workshop you will be able to

better understand fundamental mechanisms in CWs and their interactions for promoting this technology andopen new marketsbuild and run complex CW models using state-of-the-art softwareuse modelling to support design and optimise operation of CWs.

Practical information


The workshop will be held in the Conference Venue of WETPOL 2015 (Radisson Park Inn hotel)

Handouts, lunches and tea breaks are included in the registration fee.

Attendees are expected to bring their own laptop.

Licenses for 15 days use of COMSOL MultiphysicsTM and HYDRUS will be provided.

For details on the program and registration, see
http://www.wetpol.org/2015/

Software
HYDRUS Wetland Module: HYDRUS is a software
package for simulating water, heat, and solute
movement in two- and three-dimensional variably
saturated media. The software package consists of acomputational program and an interactive graphicsbased user interface. The HYDRUS Wetland Module
was developed for simulating transformation anddegradation processes in subsurface flow CWs. The
HYDRUS Wetland Module includes two biokinetic
model formulations, i.e. CW2D and CWM1.
COMSOL MultiphysicsTM and BIO_PORE: BIO_PORE
model was built using COMSOL Multiphysics™ platformto help accelerating the development of constructedwetland models and to shed light on their internalfunctioning. The CWM1 biokinetic model is
implemented to describe transformation anddegradation processes of organic matter, nitrogen andsulphur. Small changes of these equations wereimplemented in order to include attachment anddetachment of influent particulate components.
Nutrients uptake and oxygen release by plant roots
were also simulated. Thanks to the new biofilm submodel, which prevents unlimited growth of bacteria inareas with high substrate concentrations, BIO_PORE
model is able to reproduce the dynamic behaviour ofconstructed wetlands over long-term scenarios.

Trainers:Günter Langergraber is a senior scientist at the Institute for Sanitary Engineering andWater Pollution Control at the University of Natural Resources and Life Sciences,Vienna, Austria (BOKU University). He is the main developer of the WETLAND moduleof the HYDRUS (2D/3D) software.

Joan Garcia is professor of Environmental Engineering at the Technical University of
Catalonia in Barcelona (UPC). He works on the use of biotechnologies forwastewater and water treatment and remediation.

Roger Samsó is a postdoctoral researcher at Irstea-Lyon. He did his PhD on modellingof CWs at UPC and is the main developer of the BIO_PORE model. He also dealt withporous media clogging models and he currently combines that with the overallmodelling of conventional wastewater treatment technologies.
Nicolas Forquet is a research engineer at Irstea-Lyon. In 2009, he got his PhD in Fluid
Mechanics at the University of Strasbourg. He has been using HYDRUS for the last 6years and has been working on COMSOL for 2 years.