Abstract
Retaining and degrading oils lost from automobiles, close to the source, is an important function of pervious pavements and related devices. Aerobic biodegradation is an efficient oil remediation technique provided the oil can be physically retained and water, oxygen, and inorganic nutrients are available. Although external inputs and the construction materials can contribute, the level of P is often limiting. Artificial inputs of nutrients using horticultural fertilizers on pervious pavements has been found to produce effluents with unacceptably high nutrient concentrations but great promise has been shown by incorporating a slow release mechanism into the geotextile, to create a self-fertilizing medium which both hosts microorganisms in an aerobic structure and responds to their demands for nutrients when provided with a carbon source. This paper reviews the progress to date on the development of such materials. Changing the process of converting fibre into a continuous filament non-woven textile has reduced the undesirable early pulse of P which was considered to be likely to attract regulatory disapproval. The ability of this process to lay down different filament types in layers in the fabric has also enabled the distribution of the nutrient to be concentrated in the upper layers of the textile, which is likely to encounter the oil first, and to allow the nutrient loaded fraction to be made more amenable to the nutrient scouring action of microorganisms without compromising the resistance to degradation of the load bearing lower layers. The physical oil retaining properties, P release rates and biocompatibility of the of the two-layer textile are studied. The study is ongoing and further results will be reported at the congress.
Original language | English |
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Title of host publication | World Environmental and Water Resources Congress 2018 |
Subtitle of host publication | Water, Wastewater, and Stormwater; Urban Watershed Management; Municipal Water Infrastructure; and Desalination and Water Reuse - Selected Papers from the World Environmental and Water Resources Congress 2018 |
Editors | Sri Kamojjala |
Publisher | American Society of Civil Engineers (ASCE) |
Pages | 181-194 |
Number of pages | 14 |
ISBN (Electronic) | 9780784481431 |
DOIs | |
Publication status | Published - 31 May 2018 |
Event | 18th World Environmental and Water Resources Congress 2018: Water, Wastewater, and Stormwater; Urban Watershed Management; Municipal Water Infrastructure; and Desalination and Water Reuse - Minneapolis, United States Duration: 3 Jun 2018 → 7 Jun 2018 Conference number: 18 |
Publication series
Name | World Environmental and Water Resources Congress 2018: Water, Wastewater, and Stormwater; Urban Watershed Management; Municipal Water Infrastructure; and Desalination and Water Reuse - Selected Papers from the World Environmental and Water Resources Congress 2018 |
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Conference
Conference | 18th World Environmental and Water Resources Congress 2018 |
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Country | United States |
City | Minneapolis |
Period | 3/06/18 → 7/06/18 |
ASJC Scopus subject areas
- Environmental Engineering
- Management, Monitoring, Policy and Law
- Water Science and Technology
- Pollution