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Engineered infiltration systems for urban stormwater quality and quantity

October 22, 2015

The StormFilter-project, led by VTT Technical Research Centre of Finland, generates clean technologies for urban stormwater management. New engineered materials and designs will enhance stormwater management by retaining runoff and improving water quality.

The StormFilter-project aims at bio- and mineral-based solutions for stormwater cleaning by using Finnish industrial materials. These materials and related advanced systems can cost-effectively be integrated with the existing ground solutions for stormwater management. The new designs incorporate pollutant sorption and filtering by the engineered surface and sub-base soil layers. Water quality will be enhanced, thus also preparing closed circle technologies for water harvesting.

The project supports Finnish strategies for green urban living, focused on aspects of vegetation health, clean water and societal well-being. Hydrological and biochemical modelling and smart city monitoring technologies are exploited in the new solutions. Implementation and functional optimization of the new methods for green infrastructure and stormwater management will be boosted by the project.

Modelling of strormwater infiltration and cleaning processes, as well as all the stormwater measurement data, can be interconnect by design models to support decision making, and assist in cost optimization. Thus smart city technologies will be integrated for urban maintenance needs for lifetime management.

Based on the project results, cities, stormwater management companies and others actors will get new Finnish guidelines for design, construction and maintenance of the enhanced stormwater infiltration systems. In the guidelines, economical and service life validity is also considered.
The StormFilter-project led by VTT, in cooperation with Aalto University and University of Helsinki, started at September 2015, and will continue through August 2017. The project is jointly funded by Tekes (the Finnish Funding Agency for Technology and Innovation), VTT and Aalto University, as well as by the industrial partners, comprised of the whole Value Chain from implementers to producers. The industrial partners include: Cities of Espoo, Helsinki, Mikkeli and Vantaa, HSY Vesihuolto, Björkvallin Taimisto, Cloud Asset Oy, Marketanpuiston ystävät ry, Onninen Oy, Pöyry Oy, RPK Hiili Oy, Ramboll Oy, Rudus Oy, Saint-Gobain Rakennustuotteet Oy, SITO Oy, Vapo Oy Clean Water, Ympäristörakennus Saarinen Oy. International knowledge exchange with Sweden, Norway, Belgium and the U.S.A. is also included in the project.

Additional information:

Project Manager
Erika Holt
+358 40 593 9186

Principal Scientist
Juhani Korkealaakso
+358 40 700 0128

StormFilter Web page:

Further information on VTT:

Olli Ernvall
Senior Vice President, Communications
358 20 722 6747

VTT Technical Research Centre of Finland Ltd is the leading research and technology company in the Nordic countries. We use our research and knowledge to provide expert services for our domestic and international customers and partners, and for both private and public sectors. We use 4,000,000 hours of brainpower a year to develop new technological solutions.

VTT Technical Research Centre of Finland

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