Filtration Systems for Stormwater Quantity and Quality Management

The overall objectives of urban stormwater management are appropriate drainage to minimize urban ﬂood risk and erosion, and protection of groundwater and surface water quality. Urban systems of green infrastructure such as rain gardens, green roofs, permeable pavements, swales, wetlands, and other designed to reduce stormwater surface runoff volume have gained popularity due to their cost effectiveness as well as their multiple co-beneﬁts. Systems of green infrastructure often utilise engineered inﬁltration or subsurface ﬁltration media to optimise hydraulic conductivity/maximise water inﬁltration, ﬁlter particulate pollutants or provide growth media for plants and microbes. The use of chemically reactive geo- or bio-based ﬁlter media can enhance pollutant removal. The wide range of different ﬁlter materials available enables development of ﬁt-for-purpose solutions to address a variety of site-speciﬁc conditions, such as existing soil characteristics, site conditions, anticipated or measured pollutant loads and expected rainfall. Modelling of stormwater quantity and quality, whether at catchment or site scale, provides essential information for planning and design of effective stormwater management systems. Detailed site examination of key hydrological processes and stormwater constituent source areas allows optimization of stormwater treatment system design and informs decision-making. A multi-disciplinary approach that effectively integrates robust engineering and design principles with novel material technologies and innovative blue-green solutions can manage stormwater surface runoff quantity and quality to enhance the resilience of urban areas to climate change.

Keywords

stormwater management, surface runoff, stormwater filter, stormwater pollution treatment, hydrologic model, stormwater model

Citation

Holt , E , Koivusalo , H , Korkealaakso , J , Sillanpää , N & Wendling , L 2018 , Filtration Systems for Stormwater Quantity and Quality Management : Guideline for Finnish Implementation . VTT Technology , no. 338 , VTT Technical Research Centre of Finland . < https://www.vtt.fi/inf/pdf/technology/2018/T338.pdf >

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-201810165372

Collections

[article-cris] Insinööritieteiden korkeakoulu / ENG

Show all metadata