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WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS
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Description: Book cover
WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS

WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS

WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS

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Description: Book cover
WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS
Abstract
Downflow filtration of stormwater runoff is limited by the clogging of the filter media. In order to extend the run time of a downflow stormwater filter, pretreatment to remove the larger particles from the runoff is required. Another option for using filtration as a stormwater treatment is to run the filters in an upflow mode. Upflow filters do not clog as quickly as downflow filters. A second benefit of using upflow filtration is that more of the chemical capacity of the media may be used. The drawback to the use of upflow filtration may be the changes in the binding strength of the pollutants to the media.This paper presents the results of experiments conducted to determine if four potential filter media (sand, activated carbon, peat moss, and compost) could retain previously-trapped pollutants even under anaerobic conditions. The results indicated that permanent retention of heavy metals likely will occur even in an anaerobic environment. However, retention of nutrients may not occur under these conditions. These results show that the maintenance of aerobic conditions in the media is crucial if nutrient removal and retention is important.The permanent retention of the heavy metals indicates that upflow filtration may be feasible for sites where the primary stormwater pollutants are metals, such as scrap metal recyclers and junkyards. This project is part of the WERF Project 97-IRM-2, Innovative Metals Removal Techniques for Urban Stormwater.
Downflow filtration of stormwater runoff is limited by the clogging of the filter media. In order to extend the run time of a downflow stormwater filter, pretreatment to remove the larger particles from the runoff is required. Another option for using filtration as a stormwater treatment is to run the filters in an upflow mode. Upflow filters do not clog as quickly as downflow filters. A second...
Author(s)
Shirley E. ClarkRobert PittPauline Brown
SourceProceedings of the Water Environment Federation
SubjectSession 21 - Research Symposium: Physical-Chemical Processes
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2001
ISSN1938-6478
SICI1938-6478(20010101)2001:14L.156;1-
DOI10.2175/193864701802779611
Volume / Issue2001 / 14
Content sourceWEFTEC
First / last page(s)156 - 161
Copyright2001
Word count240

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Description: Book cover
WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS
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Description: Book cover
WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS
Abstract
Downflow filtration of stormwater runoff is limited by the clogging of the filter media. In order to extend the run time of a downflow stormwater filter, pretreatment to remove the larger particles from the runoff is required. Another option for using filtration as a stormwater treatment is to run the filters in an upflow mode. Upflow filters do not clog as quickly as downflow filters. A second benefit of using upflow filtration is that more of the chemical capacity of the media may be used. The drawback to the use of upflow filtration may be the changes in the binding strength of the pollutants to the media.This paper presents the results of experiments conducted to determine if four potential filter media (sand, activated carbon, peat moss, and compost) could retain previously-trapped pollutants even under anaerobic conditions. The results indicated that permanent retention of heavy metals likely will occur even in an anaerobic environment. However, retention of nutrients may not occur under these conditions. These results show that the maintenance of aerobic conditions in the media is crucial if nutrient removal and retention is important.The permanent retention of the heavy metals indicates that upflow filtration may be feasible for sites where the primary stormwater pollutants are metals, such as scrap metal recyclers and junkyards. This project is part of the WERF Project 97-IRM-2, Innovative Metals Removal Techniques for Urban Stormwater.
Downflow filtration of stormwater runoff is limited by the clogging of the filter media. In order to extend the run time of a downflow stormwater filter, pretreatment to remove the larger particles from the runoff is required. Another option for using filtration as a stormwater treatment is to run the filters in an upflow mode. Upflow filters do not clog as quickly as downflow filters. A second...
Author(s)
Shirley E. ClarkRobert PittPauline Brown
SourceProceedings of the Water Environment Federation
SubjectSession 21 - Research Symposium: Physical-Chemical Processes
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2001
ISSN1938-6478
SICI1938-6478(20010101)2001:14L.156;1-
DOI10.2175/193864701802779611
Volume / Issue2001 / 14
Content sourceWEFTEC
First / last page(s)156 - 161
Copyright2001
Word count240

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Shirley E. Clark# Robert Pitt# Pauline Brown. WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Web. 7 Oct. 2025. <https://www.accesswater.org?id=-288083CITANCHOR>.
Shirley E. Clark# Robert Pitt# Pauline Brown. WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Accessed October 7, 2025. https://www.accesswater.org/?id=-288083CITANCHOR.
Shirley E. Clark# Robert Pitt# Pauline Brown
WERF: POLLUTION RETENTION BY FILTER MEDIA UNDER AEROBIC VERSUS ANAEROBIC CONDITIONS
Access Water
Water Environment Federation
December 22, 2018
October 7, 2025
https://www.accesswater.org/?id=-288083CITANCHOR