Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells
Bioretention cells (BRCs) have shown potential for storm water quantity and quality control. However, the phosphorus (P) removal in BRC has been variable due to differences of soil properties in filter media. The objectives of this research were to identify and evaluate P accumulation in filter medi...
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doaj-3500861539e14720b137e2eca184bb592020-11-25T00:53:00ZengMDPI AGWater2073-44412017-09-0191074610.3390/w9100746w9100746Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention CellsSaroj Kandel0Jason Vogel1Chad Penn2Glenn Brown3Biosystems and Agricultural Engineering Department, Oklahoma State University, Stillwater, OK 74078, USAOklahoma Water Survey, University of Oklahoma, Norman, OK 73072, USAUSDA Agricultural Research Service, National Soil Erosion Research Laboratory, West Lafayette, IN 47907, USABiosystems and Agricultural Engineering Department, Oklahoma State University, Stillwater, OK 74078, USABioretention cells (BRCs) have shown potential for storm water quantity and quality control. However, the phosphorus (P) removal in BRC has been variable due to differences of soil properties in filter media. The objectives of this research were to identify and evaluate P accumulation in filter media and to quantify effluent P reduction in BRC. Each cell has a sand and fly ash media designed to remove phosphorous. Filter media were collected in 2014 across the cell surface and to a depth of 0.6 m to quantify the P accumulation. The mean total P (T-P) concentration increased over the seven years of operation, but the changes were not statistically significant. The average Mehlich-3 P (M3-P) and water-soluble P (WS-P) concentrations in the media profiles showed higher P accumulation in the top 0.15 m. The average M3-P and WS-P concentrations between 0.15 m to 0.30 m, and 0.30 m to 0.60 m were variable on all four BRCs media. The media with 5% fly ash significantly retained M3-P and WS-P over the top 0.15 m. Stormwater influent and effluent samples from three of the BRCs monitored over one year showed reductions in both P concentration (68% to 75%) and P mass (76% to 93%).https://www.mdpi.com/2073-4441/9/10/746bioretentionfilter mediafly ashphosphorusstormwaterwater quality |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Saroj Kandel Jason Vogel Chad Penn Glenn Brown |
spellingShingle |
Saroj Kandel Jason Vogel Chad Penn Glenn Brown Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells Water bioretention filter media fly ash phosphorus stormwater water quality |
author_facet |
Saroj Kandel Jason Vogel Chad Penn Glenn Brown |
author_sort |
Saroj Kandel |
title |
Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells |
title_short |
Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells |
title_full |
Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells |
title_fullStr |
Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells |
title_full_unstemmed |
Phosphorus Retention by Fly Ash Amended Filter Media in Aged Bioretention Cells |
title_sort |
phosphorus retention by fly ash amended filter media in aged bioretention cells |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2017-09-01 |
description |
Bioretention cells (BRCs) have shown potential for storm water quantity and quality control. However, the phosphorus (P) removal in BRC has been variable due to differences of soil properties in filter media. The objectives of this research were to identify and evaluate P accumulation in filter media and to quantify effluent P reduction in BRC. Each cell has a sand and fly ash media designed to remove phosphorous. Filter media were collected in 2014 across the cell surface and to a depth of 0.6 m to quantify the P accumulation. The mean total P (T-P) concentration increased over the seven years of operation, but the changes were not statistically significant. The average Mehlich-3 P (M3-P) and water-soluble P (WS-P) concentrations in the media profiles showed higher P accumulation in the top 0.15 m. The average M3-P and WS-P concentrations between 0.15 m to 0.30 m, and 0.30 m to 0.60 m were variable on all four BRCs media. The media with 5% fly ash significantly retained M3-P and WS-P over the top 0.15 m. Stormwater influent and effluent samples from three of the BRCs monitored over one year showed reductions in both P concentration (68% to 75%) and P mass (76% to 93%). |
topic |
bioretention filter media fly ash phosphorus stormwater water quality |
url |
https://www.mdpi.com/2073-4441/9/10/746 |
work_keys_str_mv |
AT sarojkandel phosphorusretentionbyflyashamendedfiltermediainagedbioretentioncells AT jasonvogel phosphorusretentionbyflyashamendedfiltermediainagedbioretentioncells AT chadpenn phosphorusretentionbyflyashamendedfiltermediainagedbioretentioncells AT glennbrown phosphorusretentionbyflyashamendedfiltermediainagedbioretentioncells |
_version_ |
1725239634746671104 |