Development of Fiber Filter Media to Control Heavy Metals and Nutrients in Urban Stormwater Runoff

Kim, Ree Ho; Lee, Sang Ho; Jeong, Jin-Woo; Gee, Chai Sung

doi:10.4028/0-87849-995-4.918

Cited by 3 publications

(2 citation statements)

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“…The pollutants in urban storm runoff, which lead to non-point source contamination of water environment around cities, are of great concerns [3]. Rainfall in urban areas is typically more problematic than in rural areas, because of impervious surfaces such as roofs, parking lots and roads [4].…”

Section: Introductionmentioning

confidence: 99%

Distribution and variation of typical contaminant species in short-term storm runoff from different urban land surfaces

Wei

Yan

Luo

2011

2011 Seventh International Conference on Intelligent Sensors, Sensor Networks and Information Processing

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The pollutants in urban storm runoff, which lead to non-point source contamination of water environment around cities, are of great concerns. The distributions of typical contaminants and the variations of their species in short term storm runoff from different land surfaces in a seaside city in South China were investigated. The concentrations of various contaminants, including organic matter, nutrients (i.e., N and P) and heavy metals, were significantly higher in parking lot and road runoff than those in roof and lawn runoff. The early runoff samples from traffic road and parking lot contained much high total nitrogen (TN 6--19 mg/L) and total phosphorus (TP 1--3 mg/L). A large proportion (around 60%) of TN appeared as the species of total dissolved nitrogen (TDN) in most kinds of runoff. The percentage of TDN (%TDN) or percentage of total dissolved phosphorus (%TDP) remained relatively stable in runoff during the rain events and did not decrease as dramatically as TN or TP. In addition, only parking lot and road runoff were contaminated by heavy metals, in which only Pb (25--120 μg/L) and Zn (0.1--1.2 mg/L) were the significant heavy metal contaminants. Soluble Pb and Zn were predominantly existed as labile complex species (50%--99%), which are adsorbed on the surface of suspended particles and could be easily re-released out when ambient pH decreased. This indicates that the labile complex pb and Zn in urban runoff would have the largest impact on the aquatic environment.

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Section: Introductionmentioning

confidence: 99%

Distribution and variation of typical contaminant species in short-term storm runoff from different urban land surfaces

Wei

Yan

Luo

2011

2011 Seventh International Conference on Intelligent Sensors, Sensor Networks and Information Processing

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“…Praveen et al (2008) studied on coir geotextile-packed conduits for the removal of biodegradable matter from wastewater and found that it could be an acceptable solution for most of the small-scale wastewater treatment units. Kim et al (2006b) developed a lignocellulose fibre filter media to control heavy metals and nutrients in urban stormwater runoff and found that it was effective in treating stromwater with minimal cost and high efficiency.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of environmentally compatible stormwater filtration systems

Samuel

Senthilvel

2013

Int. J. Environ. Sci. Technol.

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A horizontal flow multimedia stormwater filter was developed and tested for hydraulic efficiency and pollutant removal efficiency. Suitability of different natural fibres such as jute, sisal, hemp, coir and oil palm was studied as filter media. Furthermore, the efficacy of different fabric filter screens made up of both woven and nonwoven textiles was also assessed. A new terminology, Universal Performance Index, was introduced. Analysis of these indices showed that jute medium, nonwoven sisal screen and media proportion 1:1:1 performed better. All of the filter combinations exhibited 100 % sediment removal at lower sediment concentration in the inflow. Percentage of discarded flow versus reference flow for the stormwater filter combinations showed that the device performed better at lower flow rates. It was also observed that the hydraulic efficiency was directly proportional to the slope and inversely proportional to the cross-sectional area of the filter. Hydraulic efficiency showed a diminishing trend as the sediment level in inflow increases. By using matrix ranking method, the gravel-coir fibre-sand filter in 1:1:1 proportion with woven sisal hemp screens was selected as the best filter combination. The field evaluation of the filter showed 97.24 % efficiency in normalizing pH and 13.27 % efficiency in reducing electrical conductivity. The removal percentages of magnesium and sodium were 32 and 34 %, respectively. But higher removal efficiencies above 70 % were recorded for total solids, nitrates and sulphates.

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Distributions of typical contaminant species in urban short-term storm runoff and their fates during rain events: A case of Xiamen City

Wei

Zhu

et al. 2010

Journal of Environmental Sciences

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Development of Fiber Filter Media to Control Heavy Metals and Nutrients in Urban Stormwater Runoff

Cited by 3 publications

References 0 publications

Distribution and variation of typical contaminant species in short-term storm runoff from different urban land surfaces

Distribution and variation of typical contaminant species in short-term storm runoff from different urban land surfaces

Performance evaluation of environmentally compatible stormwater filtration systems

Distributions of typical contaminant species in urban short-term storm runoff and their fates during rain events: A case of Xiamen City

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