Storm-water filter media pollutant retention under aerobic versus anaerobic conditions

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Storm-water runoff entering filters is usually aerobic and therefore the removal processes in the filter normally occur under oxidizing and aerobic conditions. However, storm-water filters differ from water and wastewater treatment filters because there are quiescent times when no influent enters the filter and the pore water stagnates. During this stagnation period, anaerobic conditions on a macro- or microscale could develop. This note 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 when anaerobic conditions develop during interevent periods. The results indicated that permanent retention of heavy metals may occur even in an anaerobic environment (for the media and metals investigated). However, retention of some nutrients may not occur under these conditions, particularly for the organic media. This is an area of concern when the design of filters and bioretention devices includes an internal water storage zone where, between events, anaerobic conditions for nitrate removal are encouraged.

Original languageEnglish (US)
Pages (from-to)367-371
Number of pages5
JournalJournal of Environmental Engineering
Volume135
Issue number5
DOIs
StatePublished - Apr 27 2009

Fingerprint

anoxic conditions
filter
pollutant
Water
water
Peat
Heavy Metals
Runoff
Water treatment
Wastewater treatment
Nitrates
Activated carbon
Nutrients
Heavy metals
Macros
Sand
Metals
oxic conditions
water storage
moss

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Civil and Structural Engineering
  • Environmental Science(all)

Cite this

@article{5cf3158309674fb792a01fd6f45a4f6c,
title = "Storm-water filter media pollutant retention under aerobic versus anaerobic conditions",
abstract = "Storm-water runoff entering filters is usually aerobic and therefore the removal processes in the filter normally occur under oxidizing and aerobic conditions. However, storm-water filters differ from water and wastewater treatment filters because there are quiescent times when no influent enters the filter and the pore water stagnates. During this stagnation period, anaerobic conditions on a macro- or microscale could develop. This note 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 when anaerobic conditions develop during interevent periods. The results indicated that permanent retention of heavy metals may occur even in an anaerobic environment (for the media and metals investigated). However, retention of some nutrients may not occur under these conditions, particularly for the organic media. This is an area of concern when the design of filters and bioretention devices includes an internal water storage zone where, between events, anaerobic conditions for nitrate removal are encouraged.",
author = "Clark, {Shirley Elizabeth} and Robert Pitt",
year = "2009",
month = "4",
day = "27",
doi = "10.1061/(ASCE)EE.1943-7870.0000012",
language = "English (US)",
volume = "135",
pages = "367--371",
journal = "Journal of Environmental Engineering, ASCE",
issn = "0733-9372",
publisher = "American Society of Civil Engineers (ASCE)",
number = "5",

}

Storm-water filter media pollutant retention under aerobic versus anaerobic conditions. / Clark, Shirley Elizabeth; Pitt, Robert.

In: Journal of Environmental Engineering, Vol. 135, No. 5, 27.04.2009, p. 367-371.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Storm-water filter media pollutant retention under aerobic versus anaerobic conditions

AU - Clark, Shirley Elizabeth

AU - Pitt, Robert

PY - 2009/4/27

Y1 - 2009/4/27

N2 - Storm-water runoff entering filters is usually aerobic and therefore the removal processes in the filter normally occur under oxidizing and aerobic conditions. However, storm-water filters differ from water and wastewater treatment filters because there are quiescent times when no influent enters the filter and the pore water stagnates. During this stagnation period, anaerobic conditions on a macro- or microscale could develop. This note 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 when anaerobic conditions develop during interevent periods. The results indicated that permanent retention of heavy metals may occur even in an anaerobic environment (for the media and metals investigated). However, retention of some nutrients may not occur under these conditions, particularly for the organic media. This is an area of concern when the design of filters and bioretention devices includes an internal water storage zone where, between events, anaerobic conditions for nitrate removal are encouraged.

AB - Storm-water runoff entering filters is usually aerobic and therefore the removal processes in the filter normally occur under oxidizing and aerobic conditions. However, storm-water filters differ from water and wastewater treatment filters because there are quiescent times when no influent enters the filter and the pore water stagnates. During this stagnation period, anaerobic conditions on a macro- or microscale could develop. This note 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 when anaerobic conditions develop during interevent periods. The results indicated that permanent retention of heavy metals may occur even in an anaerobic environment (for the media and metals investigated). However, retention of some nutrients may not occur under these conditions, particularly for the organic media. This is an area of concern when the design of filters and bioretention devices includes an internal water storage zone where, between events, anaerobic conditions for nitrate removal are encouraged.

UR - http://www.scopus.com/inward/record.url?scp=65249131214&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=65249131214&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)EE.1943-7870.0000012

DO - 10.1061/(ASCE)EE.1943-7870.0000012

M3 - Article

AN - SCOPUS:65249131214

VL - 135

SP - 367

EP - 371

JO - Journal of Environmental Engineering, ASCE

JF - Journal of Environmental Engineering, ASCE

SN - 0733-9372

IS - 5

ER -