Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa
This paper presents a comparison of six plant biofilter designs for urban stormwater quality improvement and reports on their performances. Thirty-six columns were populated with the endemic South African plant Prionium serratum, representing plant biofilter designs that incorporate different pollut...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2022-04-01
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| Series: | Water Practice and Technology |
| Subjects: | |
| Online Access: | http://wpt.iwaponline.com/content/17/4/870 |
| _version_ | 1817983629550157824 |
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| author | D. M. Jacklin I. C. Brink S. M. Jacobs |
| author_facet | D. M. Jacklin I. C. Brink S. M. Jacobs |
| author_sort | D. M. Jacklin |
| collection | DOAJ |
| description | This paper presents a comparison of six plant biofilter designs for urban stormwater quality improvement and reports on their performances. Thirty-six columns were populated with the endemic South African plant Prionium serratum, representing plant biofilter designs that incorporate different pollutant removal mechanisms in the biofiltration process. The experimental biofilter columns were subjected to low, typically observed and high urban nutrient and metal synthetic stormwater pollution for five months. Significant loads of NH3-N and dissolved Cd, Pb and Zn were removed, whereas removal of -N, -P and dissolved Cu was more variable. The most efficient design was found to include standard plant biofiltration techniques with upflow filtration, plenum aeration and a saturated zone supporting anaerobic microbial activity. It was found that the most efficient design removed on average 96% of urban stormwater nutrient and metal loads. HIGHLIGHTS
Assessment of various plant biofilter designs (air plenum, different media, geotextile inclusion, saturated zone inclusion).;
Inclusion of endemic South African plant Prionium serratum and nationally available materials.;
Significant NH3-N and dissolved Cd, Pb and Zn removal.;
Varied -N, -P and dissolved Cu removal.; |
| first_indexed | 2024-04-13T23:35:23Z |
| format | Article |
| id | doaj.art-54d261ab64494e73a8550f03ba947eb2 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-04-13T23:35:23Z |
| publishDate | 2022-04-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-54d261ab64494e73a8550f03ba947eb22022-12-22T02:24:46ZengIWA PublishingWater Practice and Technology1751-231X2022-04-0117487088610.2166/wpt.2022.029029Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South AfricaD. M. Jacklin0I. C. Brink1S. M. Jacobs2 Department of Civil Engineering: Water and Environmental Engineering Group, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa Department of Civil Engineering: Water and Environmental Engineering Group, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa Department of Conservation Ecology and Entomology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa This paper presents a comparison of six plant biofilter designs for urban stormwater quality improvement and reports on their performances. Thirty-six columns were populated with the endemic South African plant Prionium serratum, representing plant biofilter designs that incorporate different pollutant removal mechanisms in the biofiltration process. The experimental biofilter columns were subjected to low, typically observed and high urban nutrient and metal synthetic stormwater pollution for five months. Significant loads of NH3-N and dissolved Cd, Pb and Zn were removed, whereas removal of -N, -P and dissolved Cu was more variable. The most efficient design was found to include standard plant biofiltration techniques with upflow filtration, plenum aeration and a saturated zone supporting anaerobic microbial activity. It was found that the most efficient design removed on average 96% of urban stormwater nutrient and metal loads. HIGHLIGHTS Assessment of various plant biofilter designs (air plenum, different media, geotextile inclusion, saturated zone inclusion).; Inclusion of endemic South African plant Prionium serratum and nationally available materials.; Significant NH3-N and dissolved Cd, Pb and Zn removal.; Varied -N, -P and dissolved Cu removal.;http://wpt.iwaponline.com/content/17/4/870metals removalnutrients removalplant biofilter designurban stormwater runoff pollution |
| spellingShingle | D. M. Jacklin I. C. Brink S. M. Jacobs Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa Water Practice and Technology metals removal nutrients removal plant biofilter design urban stormwater runoff pollution |
| title | Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa |
| title_full | Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa |
| title_fullStr | Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa |
| title_full_unstemmed | Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa |
| title_short | Comparison of urban stormwater plant biofilter designs for nutrient and metal removal in South Africa |
| title_sort | comparison of urban stormwater plant biofilter designs for nutrient and metal removal in south africa |
| topic | metals removal nutrients removal plant biofilter design urban stormwater runoff pollution |
| url | http://wpt.iwaponline.com/content/17/4/870 |
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