Bioretention Column Study: Fecal Coliform and Total Suspended Solids Reductions

Rusciano, Gregory M.; Obropta, Christopher C.

doi:10.13031/2013.23636

Cited by 74 publications

(32 citation statements)

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“…While this recipe provides ample hydraulic conductivity, good removal efficiencies for a number of pollutants, and adequate support for vegetative growth, traditional stormwater biofilters demonstrate poor microbial removal efficiency under field conditions, as reported by multiple case studies [40]. Log 10 removal of indicator bacteria in laboratory-scale sand biofilters varies [9,[41][42][43][44] from 0.45 to 2.5 depending on the filter media properties (e.g., particle size distribution, organic content and filter depth), stormwater composition, microbe strain, and biofilter operating conditions (e.g., extent of saturation, presence of vegetation). Lower microbial removal in these filter media under field conditions can be attributed to the complex operating conditions in the field, possible maintenance issues, such as clogging and short circuiting, stormwater overloading, and microbial regrowth.…”

Section: Filter Mediamentioning

confidence: 99%

Indicator and Pathogen Removal by Low Impact Development Best Management Practices

Peng¹,

Cao

Rippy

et al. 2016

Water

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Microbial contamination in urban stormwater is one of the most widespread and challenging water quality issues in developed countries. Low impact development (LID) best management practices (BMPs) restore pre-urban hydrology by treating and/or harvesting urban runoff and stormwater, and can be designed to remove many contaminants including pathogens. One particular type of LID BMP, stormwater biofilters (i.e., vegetated media filters, also known as bioinfiltration, bioretention, or rain gardens), is becoming increasingly popular in urban environments due to its multiple co-benefits (e.g., improved hydrology, water quality, local climate and aesthetics). However, increased understanding of the factors influencing microbial removal in biofilters is needed to effectively design and implement biofilters for microbial water quality improvement. This paper aims to provide a holistic view of microbial removal in biofilter systems, and reviews the effects of various design choices such as filter media, vegetation, infauna, submerged zones, and hydraulic retention time on microbial removal. Limitations in current knowledge and recommendations for future research are also discussed.

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Section: Filter Mediamentioning

confidence: 99%

Indicator and Pathogen Removal by Low Impact Development Best Management Practices

Peng¹,

Cao

Rippy

et al. 2016

Water

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“…Several sites were selected for the site-specific assessment in terms of reduction in TP and sediment and implementation costs [20]. Water quality effects of stormwater BMPs were estimated by multiplying pollutant loads for urban lands and the corresponding pollutant reduction rates for each BMP found in the literature [11,23,24]. Implementation costs included installation and maintenance costs.…”

Section: Cost-effectiveness Of Stormwater Bmpsmentioning

confidence: 99%

Comparative Assessment of Stormwater and Nonpoint Source Pollution Best Management Practices in Suburban Watershed Management

Qiu

2013

Water

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Nonpoint source pollution control and stormwater management are two objectives in managing mixed land use watersheds like those in New Jersey. Various best management practices (BMPs) have been developed and implemented to achieve both objectives. This study assesses the cost-effectiveness of selected BMPs for agricultural nonpoint source pollution control and stormwater management in the Neshanic River watershed, a typical mixed land use watershed in central New Jersey, USA. The selected BMPs for nonpoint source pollution control include cover crops, prescribed grazing, livestock access control, contour farming, nutrient management, and conservation buffers. The selected BMPs for stormwater management are rain gardens, roadside ditch retrofitting, and detention basin retrofitting. Cost-effectiveness is measured by the reduction in pollutant loads in total suspended solids and total phosphorus relative to the total costs of implementing the selected BMPs. The pollution load reductions for these BMPs are based on the total pollutant loads in the watershed simulated by the Soil and Water Assessment Tool and achievable pollutant reduction rates. The total implementation cost includes BMP installation and maintenance costs. The assessment results indicate that the BMPs for the nonpoint source pollution control are generally much more cost-effective in improving water quality than the BMPs for stormwater management.

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“…Typical total suspended solid (TSS) reductions of 90-98% have been reported (Rusciano and Obropta 2007;Li and Davis 2009) and as a result potential problems with media clogging exist. Li and Davis (2008) observed decreasing hydraulic conductivities over time in soil columns.…”

Section: Introductionmentioning

confidence: 99%

“…A majority of rain garden research has been conducted in the laboratory with soil columns or constructed boxes (Davis et al 2001;Kim et al 2003;Hsieh and Davis 2005;Davis et al 2006;Hsieh et al 2007;Rusciano and Obropta 2007). Typically, higher rates of nutrient removal have been found in field studies (Dietz and Clausen 2005;Tornes 2005;Hunt et al 2006;Dietz and Clausen 2008;Passeport et al 2009); however, most of these studies have been conducted in a controlled environment in which synthetic stormwater and/or simulated rain events were applied to the rain gardens.…”

Section: Introductionmentioning

confidence: 99%

Water Quality Characterisitcs of Three Rain Gardens Located Within the Twin Cities Metropolitan Area, Minnesota

Elliott¹

2011

CATE

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Bioretention Column Study: Fecal Coliform and Total Suspended Solids Reductions

Cited by 74 publications

References 0 publications

Indicator and Pathogen Removal by Low Impact Development Best Management Practices

Indicator and Pathogen Removal by Low Impact Development Best Management Practices

Comparative Assessment of Stormwater and Nonpoint Source Pollution Best Management Practices in Suburban Watershed Management

Water Quality Characterisitcs of Three Rain Gardens Located Within the Twin Cities Metropolitan Area, Minnesota

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