Nordic Investment Bank (NIB) has agreed to provide SEK1.5bn (€158m) loan to the City of Stockholm to expand the Henriksdal underground wastewater treatment plant and build a 15km sewer tunnel under the southern-central part of the city.
The ten-year loan agreement will help in doubling the capacity of the plant to more than 500,000 cubic meters per day.
Upon completion of the work, the Henriksdal plant could become the world’s largest underground wastewater treatment facility as well as the largest membrane bioreactor technology facility.
This is the second time that NIB offered a loan to the city for the same project. It previously approved a SEK3bn loan (€313m) last year.
The latest loan agreement is the result of an increase in investment size and project scope, which also includes expansion of the Sickla plant that lies adjacent to Henriksdal. The project is aimed at coping with higher loads that can occur due to changing climate.
NIB recently agreed to provide SEK500m (€52m) loan for the Kristianstad wastewater treatment plant and its network expansion. Work also includes constructing and upgrading freshwater plants between 2017 and 2021. The loan has a maturity of 21 years.
The expansion will increase the Kristianstad plant's capacity by 27%, which is equivalent to 260,000 persons. It will help the facility to handle intensified wastewater load, mainly from new industrial facilities and residential development.
Image: City of Stockholm to use NIB’s loan to expand wastewater facility. Photo: courtesy of Nordic Investment Bank.