Evaluation of the Pollutant Content in Road Runoff First Flush Waters

Mangani, Giovanna; Berloni, Arnaldo; Bellucci, F.; Tatàno, Fabio; Maione, Michela

doi:10.1007/s11270-005-2887-9

Cited by 101 publications

(55 citation statements)

References 17 publications

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“…Road-runoff waters: pH=4.0-9.5 (Mangani et al 2005) Eh=0.1-0.8 V (Baas-Becking et al 1960) [Cl]=4 10 4 to 0.2 M (Mangani et al 2005), 0.5 M for snowmelt conditions (Howard & Hayes 1997) The hydroxide species of PGEs may be important in the transport of PGEs emitted by VECs in oxidizing surface environments with Eh-pH conditions similar to those of road-runoff waters, freshwater and soil solutions (Figs. 15b, 16b and 17).…”

Section: Discussionmentioning

confidence: 99%

Complexation of platinum, palladium and rhodium with inorganic ligands in the environment

Colombo

Oates

Monhemius

et al. 2008

GEEA

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Platinum (Pt), palladium (Pd) and rhodium (Rh) are emitted by vehicle exhaust catalysts (VECs) and their concentrations have increased significantly in various environmental compartments, including airborne particulate matter, soil, roadside dust, vegetation, rivers and oceanic environments, over the last two decades as the use of VECs has increased. However, data on the chemical speciation of the platinum-group elements (PGEs) and their bioavailabilities are limited. In this paper, the thermodynamic computer model, HSC, has been used to predict the interactions of Pt, Pd and Rh with different inorganic ligands and to estimate the thermodynamic stability of these species in the environment. Eh-pH diagrams for the PGEs in aqueous systems under ambient conditions (25 C and 1 bar) in the presence of Cl, N and S species have been prepared. The results indicate that Pt, Pd and Rh can form complexes with all of the inorganic ions studied, suggesting that they are capable of mobilizing the PGEs as aqueous complexes that can be transported easily in environmental and biological systems and that are able to enter the food chain. Hydroxide species can contribute to the transport of PGEs in oxidizing environments such as road-runoff waters, freshwater, seawater and soil solutions, whereas bisulphide complexes could transport Pt and Pd in reducing environments. Ammonia species appear to be significant under near-neutral to basic oxidizing conditions. Chloride species are likely to be important under oxidizing, acidic and saline environments such as seawater and road-runoff waters in snowmelt conditions. Mixed ammonia-chloride species may also contribute to the transport of Pt and Pd in highly saline solutions.

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Section: Discussionmentioning

confidence: 99%

Complexation of platinum, palladium and rhodium with inorganic ligands in the environment

Colombo

Oates

Monhemius

et al. 2008

GEEA

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“…For PC3, it accounted for 12.73 % of the total variance and had strong and positive loadings on DPb and a moderately positive loading on DZn. The Zn and Pb pollution was mainly sourced from vehicle exhaust (Sansalone and Buchberger 1997;Huang et al 2007), but Mangani et al (2005) reported tire wear as a significant source for Zn and Davis et al (2001) and Ball et al (1998) reported that Pb is sourced from lubrication oil and grease. Thus, PC3 mainly results from vehicle emission.…”

Section: Potential Pollution Sourcesmentioning

confidence: 99%

The temporal changes in road stormwater runoff quality and the implications to first flush control in Chongqing, China

Zhang

Wang

Hou

et al. 2013

Environ Monit Assess

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This study investigates the quality of stormwater runoff from a driveway in the southwest mountainous urban area of Chongqing, China, from 2010 to 2011. The results showed that the mean concentrations of chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) were 4.1, 2.4, and 2.2 times the grade V levels of the national surface water standard of China. The pollutant concentration peak preceded or synchronized with the rainfall intensity peak and occurred 10 min after the runoff started. The significant high pollutant concentration in the initial stage of the rainfall suggested that first flush control is necessary, especially for the most polluted constitutes, such as total suspended solids, COD, and TN. Three potential pollution sources were identified: the atmospheric dry and wet deposition (TN, NO 3 − -N, NH 4 + -N, and DCu), the road sediment and materials (total suspended solids, COD, and TP), and the vehicle emissions (DPb and DZn). Therefore, this study indicates that reductions in road sediments and material pollution and dry and wet deposition should be the priority factors for pollution control of road stormwater runoff in mountainous urban areas.

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“…These three heavy metals tend to be less particle-bound than other heavy metals such as Pb [6,7]. Sources of Cu in runoff water are brake linings [3,8], metal platings, moving engine parts [9], and pesticides applied to road medians [10]. Ni is present in diesel fuel [1], Ni-Cd batteries, stainless steel, and other electronic equipment [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Factors Influencing Lab-Scale Studies to Determine Heavy Metal Removal by Six Sorbents for Stormwater Treatment

Huber

Badenberg

Wulff

et al. 2016

Water

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For the development of decentralized treatment systems for road runoff, the determination of pollutant removal capacities is essential. The aim of this study was to evaluate the impact of boundary conditions on the simultaneous removal of copper, nickel, and zinc by six sorbents used for urban stormwater treatment (i.e., granular activated alumina, anthracite, granular reactivated carbon, granular ferric hydroxide, calcium carbonate, and granular activated lignite). For batch experiments, capacities were determined at initial concentrations within the range of 2.5-180 mg/L with a rotary shaker. Further influences were investigated: the use of a horizontal shaker for concentrations of up to 1080 mg/L, a variation of the initial pH value (5 and 7), and the presence of a buffer. Furthermore, the influences of the filtration process on the capacities were studied. Kinetic experiments were conducted for contact times between 5 min and 120 min. Lab-scale column experiments with inflow concentrations of 2.5 mg/L (copper and nickel) and 5.0 mg/L (zinc) at an initial pH of 5 and a contact time of 11 min were performed for comparison. Selected experiments were subsequently carried out with changes in initial concentrations and contact time. One result is that it is essential to conduct batch experiments with the metals of interest. The capacities determined by column experiments deviated from batch experiments. Batch experiments under well-defined conditions can be used to evaluate different production batches. Column experiments give a more faithful capacity by considering realistic boundary conditions and should be preferred to determine efficiencies and service lives.

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Evaluation of the Pollutant Content in Road Runoff First Flush Waters

Cited by 101 publications

References 17 publications

Complexation of platinum, palladium and rhodium with inorganic ligands in the environment

Complexation of platinum, palladium and rhodium with inorganic ligands in the environment

The temporal changes in road stormwater runoff quality and the implications to first flush control in Chongqing, China

Evaluation of Factors Influencing Lab-Scale Studies to Determine Heavy Metal Removal by Six Sorbents for Stormwater Treatment

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