Composition of nitrogen in urban residential stormwater runoff: Concentrations, loads, and source characterization of nitrate and organic nitrogen

Jani, Jariani; Yang, Yun-Ya; Lusk, Mary G.; Toor, Gurpal S.

doi:10.1371/journal.pone.0229715

Cited by 59 publications

(24 citation statements)

References 70 publications

(106 reference statements)

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“…Higher concentrations of POC in events 7 and 8 were observed and likely due to the runoff of particulates from the residential catchment. Our research on nitrogen dynamics in this residential catchment also found greater concentrations of particulate organic nitrogen in two events, where low rain and runoff resulted in concentrating particulates [24]. The DOC concentration in the rainfall ranged from 9% to 49% (mean: 23%) of stormwater runoff DOC ( Table 2).…”

Section: Concentrations Of Organic Carbon Forms In Rainfall and Stormsupporting

confidence: 57%

Concentrations and Loads of Dissolved and Particulate Organic Carbon in Urban Stormwater Runoff

Kalev

2020

Water

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Urban landscapes are significant contributors of organic carbon (OC) in receiving waters, where elevated levels of OC limit the light availability, increase the transport of pollutants, and result in high costs of potable water treatment. Our objective in this study was to investigate the concentrations, fractions (dissolved and particulate), and loads of OC in a residential catchment (3.89 ha drainage area) located in Florida, United States. The outlet of the stormwater pipe draining the residential catchment was instrumented with an automated sampler, a flowmeter, and a rain gauge. The rainfall and runoff samples collected over 25 storm events during the 2016 wet season (June to September) were analyzed for dissolved organic carbon (DOC) and total organic carbon (TOC), with particulate OC (POC) calculated as the difference between TOC and DOC. Mean concentration of DOC was 2.3 ± 1.7 mg L−1 and POC was 0.3 ± 0.3 mg L−1 in the rainfall, whereas DOC was 10.5 ± 6.20 mg L−1 and POC was 2.00 ± 4.05 mg L−1 in the stormwater runoff. Concentrations of DOC were higher during the rising limb of the hydrograph in 15 out of 25 storm events, suggesting flushing of DOC, with an increase in the amount of runoff, from the landscape sources in the residential catchment. The estimated total export of OC during the 2016 wet season was 66.0 kg ha−1, of which DOC was 56.9 kg ha−1 (86.2% of TOC), and POC was 9.1 kg ha−1 (13.8% of TOC). High concentrations and loads of OC, especially DOC, in the stormwater runoff imply that residential catchments in urban watersheds are hot-spots of DOC influx to water bodies. Reducing DOC transport in the urban landscapes is complex and require identifying the origin of DOC and then using site-specific targeted approaches to mitigate DOC loss.

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Section: Concentrations Of Organic Carbon Forms In Rainfall and Stormsupporting

confidence: 57%

Concentrations and Loads of Dissolved and Particulate Organic Carbon in Urban Stormwater Runoff

Kalev

2020

Water

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“…The characterization of these nutrients in aquatic ecosystems are essential as they directly influence water quality and the global carbon budget ( Taillardat et al 2020 ). Several sources of nutrients, including sewage, agricultural drainage, pet wastes, and fertilizers, have been khnown to rise nutrient loads in surface water ( Jani et al, 2020 , Lusk et al, 2020 ). Increasing water demands, population growth, and environmental degradation have attracted attention towards wetland restoration ( Krimsky et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Nutrient sequestration potential of water primrose Ludwigia stolinefera (Guill. & Perr.) P.H. Raven: A strategy for restoring wetland eutrophication

Galal

Alhmad

Al-Yasi

2021

Saudi Journal of Biological Sciences

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The current work investigates the capacity of the water primrose ( Ludwigia stolinefera ) to sequester inorganic and organic nutrients in its biomass to restore eutrophic wetlands, besides its nutritive quality as fodder for animals. The nutrient elements and nutritive value of the water primrose were assessed seasonally in polluted and unpolluted watercourses. The water primrose plants’ highest biomass was attained during summer; then, it was significantly reduced till it reached its lowest value during winter. In the polluted canal, the plant root and shoot accumulated higher contents of all nutrient elements (except Na and Mg) rather than in the unpolluted Nile. They accumulated most investigated nutrients in the growing season during summer. The shoots accumulated higher contents of N, P, Ca, and Mg than the root, which accumulated higher concentrations of Na and K. Therefore, summer season is the ideal time to harvest water primrose for removing the maximum nutrients for restoring eutrophic watercourses. The aboveground tissues had the highest values of ether extract (EE) during spring and the highest crude fibers (CF) and total proteins (TP) during summer. In contrast, the belowground tissues had the lowest EE, CF, and TP during winter. In spring, autumn, and winter seasons, the protein content in the grazeable parts (shoots) of the water primrose was within the range, while in summer, it was higher than the minimum requirement for the maintenance of animals. There was a decrease in crude fibers and total proteins, while an increase in soluble carbohydrates content in the below- and above-ground tissues of water primrose under pollution stress. The total protein, lipids, and crude fibers of the aboveground parts of water primrose support this plant as a rough forage.

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“…Organic nitrogen, along with nitrate, forms the major part of the total dissolved nitrogen load in urban stormwater (Miguntanna et al, 2013). According to past studies, dissolved organic nitrogen (DON) forms 15%–47% of total nitrogen (TN) while nitrate makes up 17%–35% (Jani, Yang, Lusk, & Toor, 2020; Li & Davis, 2014; Lusk, Toor, & Inglett, 2020; Taylor, Fletcher, Wong, Breen, & Duncan, 2005). Lusk and Toor (2016) evaluated DON characteristics of stormwater entering an urban stormwater pond, noting a wide range of likely biochemical forms and lability, including lipids, proteins, amino sugars, lignins, and unknown hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

“…Lusk and Toor (2016) evaluated DON characteristics of stormwater entering an urban stormwater pond, noting a wide range of likely biochemical forms and lability, including lipids, proteins, amino sugars, lignins, and unknown hydrocarbons. Sources of stormwater nitrogen may include urban leaf litter (Bratt et al, 2017) and other natural sources such as acorns and grass clippings (Jani et al, 2020). Therefore, organic nitrogen removal is an important consideration for targeting nitrogen removal treatment design.…”

Section: Introductionmentioning

confidence: 99%

Activated carbon column adsorption of compounds that mimic urban stormwater dissolved organic nitrogen

Mohtadi

James

Davis

2020

Water Environment Research

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Nutrients mobilized by stormwater can exacerbate eutrophication in receiving waters. While bioretention systems are increasingly employed to improve stormwater quality, they do not normally incorporate design attributes for removal of dissolved organic nitrogen (DON). Thus, the current study concentrated on continuous column adsorption of stormwater DON using a media mixture of coal activated carbon and quartz sand. Adsorption of eight model organic nitrogenous compounds was studied and only pyrrole showed an appreciable adsorption performance; other organic nitrogen compounds were weakly adsorbed. The breakthrough depth for pyrrole was 88 m (equivalent to 4.4 m simulated rainfall depth), at a superficial velocity of 61 cm/hr and influent DON concentration of 1 mg N/L. Subsequent experiments revealed that adsorption of pyrrole was minimally affected by superficial velocity, such that its DON removal efficiency was greater than 91% for all tested superficial velocities (7–489 cm/hr). Accordingly, adsorption processes may be employed for removing stormwater DON fractions behaving similarly to pyrrole; data suggest DON removal initially at greater than 95%, gradually falling to 30% through 25 years of service. Practitioner points Adsorption of eight different organic nitrogenous compounds onto coal‐based activated carbon was investigated. Amino acids and an amino sugar were weakly adsorbed onto the activated carbon. Pyrrole, a moderately hydrophobic heterocyclic organic nitrogen compound was effectively adsorbed. A 30‐cm depth was considered as adequate for removal of pyrrole and compounds that would similarly adsorb. Evidence of biological ammonification was present in all studies except for pyrrole.

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Composition of nitrogen in urban residential stormwater runoff: Concentrations, loads, and source characterization of nitrate and organic nitrogen

Cited by 59 publications

References 70 publications

Concentrations and Loads of Dissolved and Particulate Organic Carbon in Urban Stormwater Runoff

Concentrations and Loads of Dissolved and Particulate Organic Carbon in Urban Stormwater Runoff

Nutrient sequestration potential of water primrose Ludwigia stolinefera (Guill. & Perr.) P.H. Raven: A strategy for restoring wetland eutrophication

Activated carbon column adsorption of compounds that mimic urban stormwater dissolved organic nitrogen

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