Field Evaluation of Bioretention Indicator Bacteria Sequestration in Wilmington, North Carolina

Hathaway, Jon M.; Hunt, William F.; Graves, Alexandria K.; Wright, Jason D.

doi:10.1061/(asce)ee.1943-7870.0000444

Cited by 46 publications

(21 citation statements)

References 28 publications

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“…However, different rain gardens also exhibit divergent performances, probably due to different soil depths and hydraulic loadings (Hathaway et al 2011). Constructed wetlands (Table 10.6) and retention and detention basins (Table 10.7) also exhibit various pollution reduction rates, and it can be attributed to the antecedent weather condition, rainfall intensity, and design parameters (e.g., geometry, size) (Herb et al 2009;Al-Rubaei et al 2014).…”

Section: Water Quality Treatmentmentioning

confidence: 99%

Blue-Green Infrastructure: New Frontier for Sustainable Urban Stormwater Management

Liao

Deng

Tan

2017

Advances in 21st Century Human Settlements

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Blue-green infrastructure (BGI) has been recognized as an important tool for sustainable urban stormwater management. BGI is ecosystem-based, relying on biophysical processes, such as detention, storage, infiltration, and biological uptake of pollutants, to manage stormwater quantity and quality. Rain gardens, bioswales, constructed wetlands, retention and detention basins, and green roofs are most commonly used BGI systems. Unlike the single-functioned grey infrastructure, which is the conventional urban drainage system, these landscape systems collectively provide multiple ecosystem services, including flood risk mitigation, water quality treatment, thermal reduction, and urban biodiversity enhancement. In recent years, BGI is increasingly embraced through different initiatives around the world, driven by the urgency to tackle different local challenges, such as water quality standards, water security, increased flood risk, and aquatic ecosystem degradation. Whereas BGI is a relatively new term, the idea and practice are not new. In this chapter, we also showcase four cities-Portland, New York City, Singapore, and Zhenjiang-that are active and progressive in implementing BGI. Although BGI receives increasing attention, mainstreaming BGI remains a challenge today. To promote widespread BGI implementation, future research should focus on case studies on practical BGI experiences to inform strategies for overcoming the barriers to mainstreaming BGI in different cities.

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Section: Water Quality Treatmentmentioning

confidence: 99%

Blue-Green Infrastructure: New Frontier for Sustainable Urban Stormwater Management

Liao

Deng

Tan

2017

Advances in 21st Century Human Settlements

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“…There is a growing volume of research on the efficiency of LID for removing total suspended solids (Hsieh and Davis 2005;Hunt et al 2006Hunt et al , 2008Diblasi et al 2009;Hatt et al 2009;Li and Davis 2009), nitrogen (Dietz and Clausen 2005;Davis et al 2006;Hunt et al 2006Hunt et al , 2008Hatt et al 2009;Li and Davis 2009), phosphorus (Dietz and Clausen 2005;Hunt et al 2006;Hatt et al 2009;Li and Davis 2009), pathogens (Hunt et al 2008;Li and Davis 2009;Hathaway et al 2011), polycyclic aromatic hydrocarbons (PAHs) (Diblasi et al 2009), and selected trace metals (Davis et al 2003;Davis 2007;Hunt et al 2008;Hatt et al 2009;Li and Davis 2009). Most literature has been focused on efficiency defined by percentage capture, but there is recognition that efficiency is typically greater when influent concentrations are high and lower or negative when influent concentrations are near the treatment limits afforded by the design characteristics of the system being observed (Kadlec and Knight 1996).…”

Section: Introductionmentioning

confidence: 99%

Removal Efficiencies of a Bioretention System for Trace Metals, PCBs, PAHs, and Dioxins in a Semiarid Environment

et al. 2015

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The negative effects of urbanization on water quantity and quality and the performance of bioretention for treating runoff and reducing concentrations and loads of sediment, nutrients, pathogens, and selected trace metals have been well documented. This study evaluated the efficiency of a bioretention system installed in semiarid Daly City, California, for a large suite of pollutants, including some that have been rarely evaluated in such systems. Stormwater flow and pollutant concentrations were measured before and after the construction of a bioretention system consisting of rain gardens and a bioswale. After installation, concentrations of most pollutants were reduced and met water quality guidelines. Water quality improvements (concentration or load reductions) were demonstrated for total Hg, polychlorinated biphenols (PCBs) and dioxins ranging between 18 and 100%, and a suite of more conventional pollutants [SSC, Cd, Cu, Ni, Pb, Zn, and polycyclic aromatic hydrocarbons (PAHs)] ranging between 20 and 90%. Results were less favorable for methylmercury. The balance of evidence suggests that such systems, when designed and functioning correctly, can be highly effective in treating pollutant concentrations and loads in stormwater runoff in semiarid environments.

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“…Several studies have demonstrated the pollutant removal efficiency of stormwater biofilters (Brown & Hunt, ; Clark, ; Hathaway, Hunt, Graves, & Wright, ; Hunt, Jarrett, Smith, & Sharkey, ; Hunt, Smith, Jadlocki, Hathaway, & Eubanks, ; Li & Davis, ; Zhang, Seagren, Davis, & Karns, ). Besides water quality improvement, biofilters have been shown to effectively reduce runoff peak flow rates and runoff volumes (Gilroy & McCuena, and Hatt, Fletcher, & Deletic, ).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have demonstrated the pollutant removal efficiency of stormwater biofilters (Brown & Hunt, 2008;Clark, 2000;Hathaway, Hunt, Graves, & Wright, 2011;Hunt, Jarrett, Smith, & Sharkey, 2006;Hunt, Smith, Jadlocki, Hathaway, & Eubanks, 2008;Li & Davis, 2009; Zhang, Seagren, Davis, & Karns, 2011). Besides…”

Section: Introductionmentioning

confidence: 99%

Statistical analyses of flow rates of stormwater treatment bioretention media

Sileshi

Pitt

Clark

2019

Water Environment Research

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The design and performance of stormwater controls is affected by the treatment flow rates of bioretention media. This article presents the results of a large number of laboratory column tests conducted to examine the treatment flow rates for various mixtures of stormwater bioretention media. Statistical analyses were conducted to identify the treatment media having targeted treatment flow rates. It was found that the bioretention media treatment flow rates were most affected by the median particle size (D50) and uniformity coefficient (Cu) of the media, and the amount of organic matter. Statistical models were developed to evaluate and compare the treatment flow rates for various bioretention media mixtures. The findings of previous research (Sileshi, 2013) using two level, four factors (24, with varying texture [T], uniformity [U], organic content [OC], and compaction [C]) full‐factorial experiment study indicated that T and U of the media mixture have the greatest effect on the measured final infiltration rates of the media, followed by interactions of T and U; C; interactions of T and OC of the material; and interactions of U and OC of the material. As expected, media containing primarily larger particles (higher sand percentage) and, that is, uniformly graded (small uniformity coefficients) had the largest treatment flow rates. Compaction had minor effects if the organic matter content was low, but had significant effects on the flow rates for high organic matter content. Practitioner points Bioretention media treatment flow rates were most affected by the median particle size and uniformity coefficient of the media, and the amount of organic matter. Statistical models were developed to evaluate and compare the treatment flow rates for various bioretention media mixtures. The media containing primarily larger particles and, that is, uniformly graded (small uniformity coefficients) had the largest treatment flow rate.

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Field Evaluation of Bioretention Indicator Bacteria Sequestration in Wilmington, North Carolina

Cited by 46 publications

References 28 publications

Blue-Green Infrastructure: New Frontier for Sustainable Urban Stormwater Management

Blue-Green Infrastructure: New Frontier for Sustainable Urban Stormwater Management

Removal Efficiencies of a Bioretention System for Trace Metals, PCBs, PAHs, and Dioxins in a Semiarid Environment

Statistical analyses of flow rates of stormwater treatment bioretention media

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