Department of Built Environment

Wastewater treatment technologies

The group focuses on sustainable wastewater treatment. Valuable resources must be reused safely while committing to climate change mitigation. Aalto Donation Professorship 2018 – 2028.
Wastewater Treatment Technologies

Aalto Donation Professorship 2018 – 2028

The Donation professorship's field is wastewater treatment, and it is funded by several Finnish water utilities,  associations, and foundations working in the water sector. The work started in 2018 with Prof. Anna Mikola in the Department of Built Environment at Aalto University. In April 2023, Henri Haimi was appointed a part-time Professor of Practice.

Research themes

Our research themes are nutrient recovery, removal of micropollutants, and energy and GHG optimization – all this in wastewater treatment and especially in cold climate conditions.  

Nutrient recovery from wastewater

The role of wastewater treatment is moving from the removal of substances to the recycling of resources.

Nutrient recovery and removal system

Emerging pollutant management

The load of different pollutants in the Baltic Sea is a problem we need to solve.

Micropollutants research system in water laboratory

Climate impact of WWTP

Wastewater treatment plants are among the big energy consumers in our societies and they have a significant carbon footprint.

Carbon sink

Processes at cold temperature

In Finland and in the Baltic Sea region wastewaters and natural waters are relatively cold during the major part of the year. This affects treatment processes.

Wastewater plant in snowy winter time

Read more

IWA LET 2023 presentation


Presented topics at international conferences in the field of water and wastewater engineering.

Department of Built Environment
Wastewater treatment research group photo

Student stories about internships

Read here stories from students about working in the Water and Wastewater Engineering group.

Department of Built Environment
Logos of the funding companies


Here you can find more information about the organizations funding our research.

School of Engineering

Master's theses done in the Group

Related news

HSY wastewater treatment plant from inside

Digital twin for optimizing the carbon balance in wastewater treatment

Researchers at Aalto are creating a digital model for automatic continuous predictive process simulations supporting wastewater treatment plant operation in a new project called DIGICARBA. The proposed digital tool will have a wastewater treatment process model connected to continuous data transmission from the Helsinki wastewater treatment plant.

Henri Haimi

FCG Project Manager Henri Haimi appointed as Professor of Practice at Aalto University

His expertise is in mitigating climate change in the wastewater sector, digital solutions and the recovery of resources from wastewater.



Here you can find our recent publications.

Tracking the formation potential of vivianite within the treatment train of full-scale wastewater treatment plants

Lobna Amin, Raed A. Al-Juboori, Fredrik Lindroos, Mansour Bounouba, Kati Blomberg, Melissa Lopez Viveros, Marina Graan, Sam Azimi, Johan Lindén, Anna Mikola, Mathieu Spérandio 2024

Seasonality of nitrous oxide emissions at six full-scale wastewater treatment plants

M Sieranen, H Hilander, H Haimi, T Larsson, A Kuokkanen, A Mikola 2024

Growth of fungi and yeasts in food production waste streams : a feasibility study

D. Bansfield, K. Spilling, A. Mikola, J. Piiparinen 2023

Incorporation of main line impact into life cycle assessment of nutrient recovery from reject water using novel membrane contactor technology

Sofia Högstrand, Juho Uzkurt Kaljunen, Raed A. Al-Juboori, Karin Jönsson, Hamse Kjerstadius, Anna Mikola, Greg Peters, Magdalena Svanström 2023

Bioflocculation of Euglena gracilis via direct application of fungal filaments : a rapid harvesting method

Danielle Bansfield, Kristian Spilling, Anna Mikola, Jonna Piiparinen 2022

Adsorptive behavior of phosphorus onto recycled waste biosolids after being acid leached from wastewater sludge

Juho Uzkurt Kaljunen, Roza Yazdani, Raed A. Al-Juboori, Charlotte Zborowski, Kristoffer Meinander, Anna Mikola 2022
More information on our research in the Aalto research portal.
Research portal
  • Published:
  • Updated: