Rainwater runoff quantity and quality performance from a greenroof: The effects of short-term events

Teemusk, Alar; Mander, Ülo

doi:10.1016/j.ecoleng.2007.01.009

Cited by 253 publications

(153 citation statements)

References 11 publications

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120

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“…The median BOD 5 /COD ratios for the Boulevards outlet are 0.11 and 0.22 for wet weather and dry weather respectively. Thus the biodegradability of the storm sewer waters studied can be classified as poor (ratio less than 0.3), and this data agrees with some literature values (Teemusk and Mander, 2007;Zhang et al, 2010). Nevertheless, the biodegradability of stormwater would appear to vary because higher BOD 5 /COD ratio values were also found (Lee and Bang, 2000;Luo et al, 2009).…”

Section: Resultssupporting

confidence: 79%

“…Worldwide, numerous studies have already been made on stormwater characterization especially concerning overall pollution parameters (Lee and Bang, 2000;Teemusk and Mander, 2007;Terzakis et al, 2008;Zgheib et al, 2011;Zhang et al, 2010), but only a few (Kim et al, 2007;Zhang et al, 2010) have covered correlations between these parameters in stormwater. Other studies have covered certain priority organic pollutants, notably polycyclic aromatic hydrocarbons (Chedeville et al, 2010;Terzakis et al, 2008;Zgheib et al, 2011), diethylhexylphtalate (Bjorklund et al, 2009;Zgheib et al, 2011), methyl tert-butylether (Achten et al, 2001), total hydrocarbons (Barraud and Fouillet, 2006;Chedeville et al, 2010;Legret and Pagotto, 1999), and 4-nonylphenol (Bjorklund et al, 2009;Bressy et al, 2011;Zgheib et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Impact of dry weather discharges on annual pollution from a separate storm sewer in Toulouse, France

Deffontis

Breton

Vialle

et al. 2013

Science of The Total Environment

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Section: Resultssupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Impact of dry weather discharges on annual pollution from a separate storm sewer in Toulouse, France

Deffontis

Breton

Vialle

et al. 2013

Science of The Total Environment

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“…On the contrary heavy rain washed more phosphates and also nitrates out of the green roof. In snow melting water, the concentration of all components was greater on the green roof due to the accumulation of atmospheric pollutants in snow [29].…”

Section: Storm Water Qualitymentioning

confidence: 99%

Hydrologic Restoration in the Urban Environment Using Green Roofs

Palla

Gnecco

Lanza

2010

Water

104

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Loss of natural soil and vegetation within the urban environment can significantly affect the hydrologic cycle by increasing storm water runoff rates and volumes. In order to mitigate these modifications in urban areas engineered systems are developed, such as green roofs, to mimic and replace functions (evapo-transpiration, infiltration, percolation) which have been altered due to the impact of human development. Green roofs, also known as vegetated roof covers, eco-roofs or nature roofs, are composite complex layered structures with specific environmental benefits. They are increasingly being used as a source control measure for urban storm water management. Indeed, they are able to re-establish the natural water cycle processes and to operate hydrologic control over storm water runoff with a derived peak flow attenuation, runoff volume reduction and increase of the time of concentration. Furthermore green roofs exhibit the capacity to reduce storm water pollution; they generally act as a storage device, consequently pollutants are accumulated in the substrate layer and released when intensive rainwater washes them out. In order to investigate the hydrologic response of a green roof, the University of Genova recently developed a joint laboratory and full-scale monitoring programme by installing a "controlled" laboratory test-bed with known rainfall input and a companion green roof experimental site (40 cm depth) in the town of Genoa. In the paper, data collected during the monitoring programme are presented and compared with literature data.

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“…Some authors recommended phosphates limits for controlling the nuisance caused by riverine algae at the level of 0.015 mg PO 4 -P·L −1 [11] or even 0.006 mg PO 4 -P·L −1 [12]. Green roofs can be a source of the phosphorus in runoff (e.g., [17,18]). Concentrations of phosphorus and phosphates found in green roof runoff in different studies are presented in Table 2.…”

Section: Introductionmentioning

confidence: 99%

Effect of P-Reactive Drainage Aggregates on Green Roof Runoff Quality

Karczmarczyk

Baryła

Bus

2014

Water

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Abstract:The main hypothesis of the presented study is that the negative effect of phosphorus leaching from a green roof substrate can be reduced by including P-reactive material in a drainage layer. In this work, different aggregates (Pollytag ® , lightweight expanded clay aggregates, chalcedony, serpentynite and crushed autoclaved aerated concrete) to be used as the green roof drainage layer are described. Physical parameters, e.g., granulometric composition, water absorption, bulk density and porosity are assessed. A phosphorus sorption isotherm and a kinetic test were performed. Physical and chemical characteristics of the materials were used as a base for choosing the best media for the drainage layer. The P-removal efficiency of crushed autoclaved aerated concrete was confirmed in a column experiment. Adding the implementation of the P-reactive material in a drainage layer during construction can reduce the negative effect of substrate on green roof runoff quality.

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Rainwater runoff quantity and quality performance from a greenroof: The effects of short-term events

Cited by 253 publications

References 11 publications

Impact of dry weather discharges on annual pollution from a separate storm sewer in Toulouse, France

Impact of dry weather discharges on annual pollution from a separate storm sewer in Toulouse, France

Hydrologic Restoration in the Urban Environment Using Green Roofs

Effect of P-Reactive Drainage Aggregates on Green Roof Runoff Quality

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