Development of a stormwater treatment system using bottom ash as filter media

Gorme, Joan B.; Maniquiz-Redillas, Marla C.; Kim, Lee-Hyung

doi:10.1080/19443994.2014.922307

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…On the other hand, bottom ash, which is a by-product from coal burning plants, was utilized as a component of experiment filter media due to its known good adsorption behavior [28,29]. Filter media used were selected to have a uniform gradation of 2-4.75 mm for sand, and 0.85-2 mm for bottom ash.…”

Section: Filter Media and Propertiesmentioning

confidence: 99%

A Laboratory Study on the Filtration and Clogging of the Sand-Bottom Ash Mixture for Stormwater Infiltration Filter Media

Segismundo

Kim

Jeong

et al. 2017

Water

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Abstract:The performance of stormwater infiltration systems depends significantly on the infiltration/filtration characteristics of filter media. Sand media have been frequently used due to their abundance and acceptable pollutant removal efficiency. Bottom ash media, which was known to have a high sorption capacity, are being considered as alternative and/or complement filter media to enhance the overall treatment efficiency. To verify the applicability of bottom ash as filter media, a series of 1-D column infiltration tests were conducted in this study. The filtration and clogging characteristics of the sand-bottom ash mixtures at different mixing ratios were investigated with limitedly focusing on the Total Suspended Solids (TSS) present in stormwater runoff. As a result, the presence of bottom ash was identified to improve the TSS removal efficiency in spite of having a significant increase in clogging potential. All media configurations were observed to experience the premature clogging and the clogging state for varying and constant head flow conditions, respectively. The noticeable amount of crushed bottom ash particles brought by seepage force could be accountable for the rapid occurrence of clogging phenomena. Overall, a homogeneous sand filter is preferred as long as the lifespan of filter system is the primary concern.

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Section: Filter Media and Propertiesmentioning

confidence: 99%

A Laboratory Study on the Filtration and Clogging of the Sand-Bottom Ash Mixture for Stormwater Infiltration Filter Media

Segismundo

Kim

Jeong

et al. 2017

Water

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“…Consistent with this study, 60% of TSS is removed within the first 10 cm of a sand filter due to the clogging [25], and 70% of TSS from synthetic runoff was filtered through BA filter media with various TSS removal efficiencies according to different hydraulic loading rates and inflow concentrations [26]. In addition, Segismundo et al [7] reported that the amount of TSS accumulated in BA and sand mixture columns were greater than 70% at the upper 15% of depth, and then rapidly decreased as it reached the bottom due to the formation of a clogging layer at the top surface of the filter column.…”

Section: Estimation Of Filtered Amounts Of Tss With the Depth Of Ba Fmentioning

confidence: 53%

Application of Bottom Ash as Filter Media for Construction Site Runoff Control

Bang

Joo

Kim

et al. 2020

Water

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The potential application of bottom ash (BA) for construction site runoff control as an alternative filter media with high removal efficiency of total suspended solids (TSS) and longer operation period were evaluated. Both lab-scale single-layer and pilot-scale multi-layer filtration experiments were performed using BA filter media with different particle sizes and various volumetric flow rates. Due to the mesoporous, irregular, and spherical shape of gravel-size BA filter media used in this study, relatively low surface area, negligible pore volume, and greater pore size were observed. Both TSS removal efficiencies and clogging of BA filter media were a complex function of particle size of BA filter media and loading rate of TSS. Incoming TSS particles did not significantly penetrate beyond 46-cm BA filter media depth, accumulating on the upper layers and gradually forming a clogging layer to critical thickness, and finally the clogging filtration mechanism dominated the overall removal efficiency of TSS. Accumulation of TSS on BA filter media can be explained by the lumped sigmoidal empirical model, and an exponential decline in accumulation of TSS with depth results in minimal accumulation beneath the clogging layer. As practical implications, BA filter media depth of less than 46 cm is recommended with dual- or multi-media filters using mixtures of gravel-size BA and silt-size fine media, and a combination of detention basins can reduce frequent periodic de-clogging operation and management.

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“…The emerging BMP technologies of additional to INDOT were ash, peat, and other organic/absorbents. Some laboratory and field studies show that these materials can adsorb sometimes up to 70% solids, and 50% heavy metal contaminants from storm water matrices (Gorme, Maniquiz-Redillas, & Kim, 2015;Zhang Brown, Storm, & Zhang, H., 2008). These studies however are much fewer in number, breadth, and depth compared to the online storm water BMP database reports available.…”

Section: Sumof Loadsmentioning

confidence: 99%