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Open AccessFeature PaperArticle

Effect of TSS Removal from Stormwater by Mixed Media Column on T-N, T-P, and Organic Material Removal

1
Department of Civil Engineering, Sangmyung University, Cheonan, Chungnam 31066, Korea
2
Center for Water Resource Cycle Research, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
3
Department of Environmental and Landscaping, Sangmyung University, Cheonan, Chungnam 31066, Korea
*
Author to whom correspondence should be addressed.
Water 2018, 10(8), 1069; https://doi.org/10.3390/w10081069
Received: 16 July 2018 / Revised: 7 August 2018 / Accepted: 9 August 2018 / Published: 10 August 2018
(This article belongs to the Section Water and Wastewater Treatment)
The water quality of a waterbody influenced by stormwater runoff was tested in a lab-scale setting by filtration. The filtration bed was packed with two or three types of media, sand, bottom ash (BA), and woodchips (WC), and tested with three hydraulic conductivities (HCs). Five pollutants—namely, total suspended solids (TSS): BOD, COD, T-N, and T-P, were analyzed and compared. The application of sand-bottom ash (S-BA) and bottom ash-sand (BA-S) media types showed the highest removal efficiencies for TSS, BOD, COD, T-N, and T-P, respectively. Among the five pollutants, TSS achieved the highest removal efficiency for any of the filter media, which was up to 93% for the S-BA and decreased to 72% with an increase in HC, followed by T-P > BOD > COD = T-N. The maximum removal efficiency values of BOD and COD were obtained at 67% and 52%, respectively, indicating that BOD removal was always higher than COD removal. Due to the low C:N and high HC, biodegradation was disregarded during filtration. Based on the different removal forms of T-P compared with TSS, adsorption would be involved in the removal of dissolved T-P by BA. View Full-Text
Keywords: water quality; pollution; stormwater; sorption water quality; pollution; stormwater; sorption
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Kim, H.J.; Choi, J.-W.; Kim, T.-H.; Park, J.-S.; An, B. Effect of TSS Removal from Stormwater by Mixed Media Column on T-N, T-P, and Organic Material Removal. Water 2018, 10, 1069.

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