The course will provide an overview of the ecology of freshwater wetlands including hydrology, wetland soil biogeochemistry, and wetland plant ecophysiology. The processes responsible for the transformation of organic matter, nutrients and micropollutants such as pharmaceuticals and personal care products in the wetland environment will be described. The state‐of‐the‐art in design techniques based on hydraulics and pollutant removal models in different types of constructed wetland systems will be demonstrated. Practical design guidelines and management aspects such as system layout, compartmentalization, substrate selection, inlet and outlet structures, plant selection and planting will be presented. The use of constructed wetlands for the treatment of different types of wastewaters, such as domestic, industrial wastewaters, and urban runoff will be demonstrated through case‐stories from around the world, including systems established in different climates (cold‐temperate, sub‐tropics, tropics, semiarid and arid areas).

Location and time
The course will be held at the Marine Biological Station Rønbjerg, located at the Rønbjerg Harbour
https://bio.au.dk/en/research/research‐infrastructure/roe
nbjerg‐en/

The class will meet at the Biology Department on the 22nd of June 2025, in the afternoon; Departure on the 28th of June 2025 after breakfast. Transport to and from the Research Station will be provided.

Evaluation
Pass/fail based on satisfactory participation in the course and on the written report that must be prepared and submitted two weeks after the course. Prior to the course, each participant will be asked to prepare a poster addressing the main parts of their own research.

Target group
The target group for the course is young researchers and PhD‐students with projects related to processes in aquatic and wetland environments addressing environmental issues, natural base solutions and ecological engineering treatment options. Priority is to PhD‐students from the Graduate School of Technical Sciences.

Teachers
• Dr. Carlos A. Arias, Senior Researcher, Aarhus University, Denmark.
• Prof. Hans Brix, Head of the Department of Biology, Aarhus University, Denmark.
• Dr. Tom Headley, Director of Wetland and Ecological Treatment Systems, Australia.
• Dr. Pascal Molle, Researcher Director of the
• French National Institute for Agriculture, Food, and Environment (INRAE), France.
• Dr. Pedro Carvalho, Associate Professor, Aarhus University, Denmark.
• Dr. Emil Jespersen Research Assistant, Aarhus University, Denmark.
• Dr. Peder Gregersen, CEO Centre for Recycling, Denmark.
• MSc. Rene Killian, CEO Killian Water, Denmark

Registration
Registration through webshop before the 9 of June 2025 in the following link:
events.au.dk/phd‐course2025
You will be asked to provide a brief description of your academic background as well as the relevance of the course for you. Information regarding the course will be sent no later than 12 th of June 2025.

Course fee
The registration fee is 15.000 DKK (ca. 2.000 EUR) which covers participation in the course; including excursions, accommodation, transport to and from meeting point in Aarhus and all meals from dinner on the 22 nd of June till breakfast on the 28 th of June.

Course credits
5 ECTS (European Credit Transfer System).

Number of participants
Limited to 24.

Course Organizer
Dr. Carlos A. Arias, Department of Biology, Aarhus
University, Ole Worms Allé 1, 8000 Aarhus C,
Denmark
Email: carlos.arias@bio.au.dk