Characterization of solid and metal element distributions in urban highway stormwater

Sansalone, John J.; Buchberger, Steven G.

doi:10.2166/wst.1997.0659

Cited by 89 publications

(72 citation statements)

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“…20 The behavior of cadmium obtained in this study does not agree with the literature, where Cd has been commonly found in the dissolved fraction. 20,29 Actually, the partitioning of metallic elements in drainage waters is strongly influenced by the rainfall pH, the nature and amount of solids present, the solubility and pavement residence time of the element. 29 Therefore, it is believed that Curitiba produces its own distinctive mix of sediment-flakes from different sources, which could act as a potential cadmium sorbent.…”

Section: Resultscontrasting

confidence: 99%

“…18 In opposition to the behavior described for lead, copper has been commonly found in the dissolved fraction. 20 The behavior of cadmium obtained in this study does not agree with the literature, where Cd has been commonly found in the dissolved fraction. 20,29 Actually, the partitioning of metallic elements in drainage waters is strongly influenced by the rainfall pH, the nature and amount of solids present, the solubility and pavement residence time of the element.…”

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confidence: 99%

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Copper, lead and cadmium loads and behavior in urban stormwater runoff in Curitiba, Brazil

Prestes¹,

Anjos²,

Sodré³

et al. 2006

J. Braz. Chem. Soc.

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O objetivo deste trabalho foi avaliar a presença e o comportamento do Cu, Pb e Cd em águas de drenagem urbana na cidade de Curitiba, no Brasil. As amostras foram coletadas durante 21 eventos de chuva em uma avenida de tráfego médio. As concentrações dos metais foram similares àquelas descritas na literatura, seguindo a ordem Pb>Cu>>Cd. Uma estimativa da carga anual dos três metais para a Bacia do Rio Bacacheri, de 30 km 2 , revelou valores de 1.520, 950 e 25 kg para Pb, Cu e Cd, respectivamente. O chumbo mostrou-se preferencialmente associado ao material particulado (82%), seguido do cádmio (66%) e do cobre (48%). Na fração dissolvida ficou evidenciada uma relação dos metais com a matéria orgânica dissolvida, seguindo a ordem Cu>Pb>Cd. As concentrações dos metais também variaram em função de fatores tais como o primeiro fluxo e o número de dias de estiagem que precedem um evento de chuva.We investigate the presence and behavior of Cu, Pb, and Cd in runoff waters from a residential area located in the city of Curitiba, Brazil. Samples were collected in twenty-one stormwater events in an intermediate traffic way located in the Bacacheri watershed. Metal concentrations were similar to range values compiled worldwide and followed the order: Pb>Cu>>Cd. Unit loads were estimated to the watershed, which cover an area of 30 km 2 , revealing values of 1520, 950, 25 kg for Pb, Cu, and Cd, respectively. Among the three metals, lead showed the greatest affinity for the suspended solids (82%) followed by Cd (66%) and Cu (48%). Meanwhile, an association of the metals with the organic matter in the dissolved phase, following the order Cu>Pb>Cd. Metal loads and behavior in urban runoff also depends on factors such as the first flush and the dry period preceding a storm event.Keywords: heavy metal, urban stormwater runoff, pollution load, nonpoint source IntroductionNonpoint pollution resulting from urban stormwater runoff has been identified as one of the major causes of the deterioration of the quality of surface receiving waters. [1][2][3] During stormwater events water runs on the surface washing away a variety of pollutants alongside the drainage area and reaches, intermittently, receiving water bodies. 4,5 Additionally, in urban areas, impervious surfaces such as roads, bridges, parking lots, and buildings do not allow the slow percolation of the water into the ground. In this case, the water remains above the surface, accumulating and running off in large amounts. 6,7 Many previous studies revealed that nonpoint emissions remain the largest source of water quality problems in developed countries. Nowadays, it is the main reason that approximately 40% of rivers, lakes, and estuaries located in the United States are not clean enough to meet basic uses such as fishing or swimming. 8 In Brazil, as well as in many developing countries, the identification and monitoring of nonpoint sources still represent a great challenge. In fact, this issue has not been properly addressed and the pollutant content of urban surface waters ha...

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Section: Resultscontrasting

confidence: 99%

contrasting

confidence: 99%

Copper, lead and cadmium loads and behavior in urban stormwater runoff in Curitiba, Brazil

Prestes¹,

Anjos²,

Sodré³

et al. 2006

J. Braz. Chem. Soc.

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“…It has also been observed that flow rate and duration controls both the yield (load) and size of transported solids in urban highway stormwater (Sansalone and Buchberger 1997). Therefore, influent concentration/loading may be well correlated with the particle diameter and density in the field.…”

Section: Proceedings Of Asce/ewri World Water and Environmental Resourcmentioning

confidence: 99%

Development of Adjustment and Scaling Factors for Measured Suspended Solids Removal Performance of Stormwater Hydrodynamic Treatment Devices

Guo

2005

Impacts of Global Climate Change

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Suspended solids removal performance of a manufactured stormwater treatment device varies greatly with operating conditions and laboratory or field evaluation techniques. Laboratory testing and field monitoring protocols have been established to evaluate the performance (removal efficiency or effluent concentration) of manufactured stormwater treatment devices and other structural BMPs. However, deviations from the recommended evaluation conditions and techniques are expected and may lead to a significant difference in the measured performances. Range of the parameters/variables specified within the protocol itself may also have a significant effect on the measured performances. Potential effects of six variables are discussed in this paper: TSS vs. SSC methods, operating flow rate, size of the treatment unit, size and density of solid particles in the influent, solids concentration/loading in the influent, and initial volume of solids at bottom of the treatment unit. It is recommended that appropriate adjustment and scaling factors be developed to support certification of performance claims and to appropriately design the stormwater treatment system.

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“…Given that wetlands are better than ponds at capturing finer sediment with higher metal concentrations (Sansalone and Buchberger 1997) and promoting more bio/geochemical treatment processes, it was hypothesized that the wetland section would increase the overall metal treatment even more effectively than observed in the study. In the Bäckaslöv CSW, the pond alone removed a significant percentage of the metals, particularly those in particulate form (Table 4).…”

Section: Pond Vs Wetland Performancementioning

confidence: 92%

Effectiveness of a 19-Year Old Combined Pond-Wetland System in Removing Particulate and Dissolved Pollutants

et al. 2017

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This study monitored the stormwater runoff quantity and quality treatment performance of a 6.8 ha 19-year old combined pond-wetland system, located in south Sweden, over one year. The mean volume reductions for 53 storm events for the pond and wetland were 40% and 28%, respectively, while the mean flow reductions were 60% and 76%, respectively. Pollutant concentrations in the influent to the wetland were highly variable. The pond-wetland system could efficiently remove an average of 91%, 80%, 94%, 91%, 83% and 92% of TSS, TP, particulate Cd, Cu, Pb, and Zn, respectively, whereas the removal of particulate and dissolved Ni was highly variable with an average of 67% ± 62% and −5% ± 41%, respectively. The removal of TN, NH 4 -N and NO 3 + NO 2 -N was highly variable with an average of 45% ± 27%, 12% ± 96% and 45% ± 43%, respectively. These removal percentages are high in comparison to other studies and underline that relatively old systems can also provide efficient treatment. Although the pond accounted for a substantial reduction of pollutant concentration, the wetland significantly enhanced both the treatment performance and the peak flow reduction. This underlines that a combined pond/wetland system is a more beneficial solution than a pond only. The pollutant removal efficiency was significantly influenced by some factors including Antecedent Dry Days, seasonal variations, air temperature, retention times, rainfall depth and duration, and peak rainfall intensity.

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Characterization of solid and metal element distributions in urban highway stormwater

Cited by 89 publications

References 0 publications

Copper, lead and cadmium loads and behavior in urban stormwater runoff in Curitiba, Brazil

Copper, lead and cadmium loads and behavior in urban stormwater runoff in Curitiba, Brazil

Development of Adjustment and Scaling Factors for Measured Suspended Solids Removal Performance of Stormwater Hydrodynamic Treatment Devices

Effectiveness of a 19-Year Old Combined Pond-Wetland System in Removing Particulate and Dissolved Pollutants

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