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Distribution and mobilization of pollutants in the sediment of a constructed floating wetland used for treatment of combined sewer overflow events

Annelies Van de Moortel UGent, Gijs Du Laing UGent, Niels De Pauw UGent and Filip Tack UGent (2011) WATER ENVIRONMENT RESEARCH. 83(5). p.427-439
abstract
Sediments in combined sewer overflow treatment systems may exhibit elevated pollutant concentrations. Concentrations measured in the sediment of a floating treatment wetland ranged from 0.17 to 1.6 (cadmium), 28 to 142 (copper), 10 to 33 (chromium), 50 to 141 (manganese), 5 to 20 (nickel), 50 to 203 (lead), and 185 to 804 (zinc) mg/kg dry matter and 7.4 to 17 (iron), 2 to 8 (total nitrogen), and 1.3 to 4.4 (total phosphorus) g/kg dry matter. During overflow events, the entering water volumes can disturb the sediments. A greenhouse experiment was set up to evaluate the possible mobilization of pollutants through disturbation. The disturbation did not result in an increased mobilization of cadmium, copper, chromium, nickel, lead, zinc, nitrogen, phosphorus, and organic carbon towards the pore and surface water. Calcium concentrations in the surface water increased for all sediments, as a result of release from the exchangeable sediment pool and dissolution of carbonates. Geochemical speciation modeling indicated that, in the pore water, the free ion form was the most abundant for calcium, iron, manganese, cadmium, and nickel, with its fraction increasing with time.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
mobility, metals, Visual MINTEQ, wastewater treatment, stormwater, phosphorus, nitrogen, ACID-MINE DRAINAGE, DETENTION PONDS, SUBMERSED MACROPHYTES, METAL CONCENTRATIONS, STORMWATER, REMOVAL, ACCUMULATION, GEOCHEMISTRY, FACILITIES, MOBILITY
journal title
WATER ENVIRONMENT RESEARCH
Water Environ. Res.
volume
83
issue
5
pages
427 - 439
Web of Science type
Article
Web of Science id
000289837000006
JCR category
WATER RESOURCES
JCR impact factor
0.883 (2011)
JCR rank
54/78 (2011)
JCR quartile
3 (2011)
ISSN
1061-4303
DOI
10.2175/106143010X12851009156169
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1075808
handle
http://hdl.handle.net/1854/LU-1075808
date created
2010-11-17 11:59:18
date last changed
2011-12-19 12:56:09
@article{1075808,
  abstract     = {Sediments in combined sewer overflow treatment systems may exhibit elevated pollutant concentrations. Concentrations measured in the sediment of a floating treatment wetland ranged from 0.17 to 1.6 (cadmium), 28 to 142 (copper), 10 to 33 (chromium), 50 to 141 (manganese), 5 to 20 (nickel), 50 to 203 (lead), and 185 to 804 (zinc) mg/kg dry matter and 7.4 to 17 (iron), 2 to 8 (total nitrogen), and 1.3 to 4.4 (total phosphorus) g/kg dry matter. During overflow events, the entering water volumes can disturb the sediments. A greenhouse experiment was set up to evaluate the possible mobilization of pollutants through disturbation. The disturbation did not result in an increased mobilization of cadmium, copper, chromium, nickel, lead, zinc, nitrogen, phosphorus, and organic carbon towards the pore and surface water. Calcium concentrations in the surface water increased for all sediments, as a result of release from the exchangeable sediment pool and dissolution of carbonates. Geochemical speciation modeling indicated that, in the pore water, the free ion form was the most abundant for calcium, iron, manganese, cadmium, and nickel, with its fraction increasing with time.},
  author       = {Van de Moortel, Annelies and Du Laing, Gijs and De Pauw, Niels and Tack, Filip},
  issn         = {1061-4303},
  journal      = {WATER ENVIRONMENT RESEARCH},
  keyword      = {mobility,metals,Visual MINTEQ,wastewater treatment,stormwater,phosphorus,nitrogen,ACID-MINE DRAINAGE,DETENTION PONDS,SUBMERSED MACROPHYTES,METAL CONCENTRATIONS,STORMWATER,REMOVAL,ACCUMULATION,GEOCHEMISTRY,FACILITIES,MOBILITY},
  language     = {eng},
  number       = {5},
  pages        = {427--439},
  title        = {Distribution and mobilization of pollutants in the sediment of a constructed floating wetland used for treatment of combined sewer overflow events},
  url          = {http://dx.doi.org/10.2175/106143010X12851009156169},
  volume       = {83},
  year         = {2011},
}

Chicago
Van de Moortel, Annelies, Gijs Du Laing, Niels De Pauw, and Filip Tack. 2011. “Distribution and Mobilization of Pollutants in the Sediment of a Constructed Floating Wetland Used for Treatment of Combined Sewer Overflow Events.” Water Environment Research 83 (5): 427–439.
APA
Van de Moortel, A., Du Laing, G., De Pauw, N., & Tack, F. (2011). Distribution and mobilization of pollutants in the sediment of a constructed floating wetland used for treatment of combined sewer overflow events. WATER ENVIRONMENT RESEARCH, 83(5), 427–439.
Vancouver
1.
Van de Moortel A, Du Laing G, De Pauw N, Tack F. Distribution and mobilization of pollutants in the sediment of a constructed floating wetland used for treatment of combined sewer overflow events. WATER ENVIRONMENT RESEARCH. 2011;83(5):427–39.
MLA
Van de Moortel, Annelies, Gijs Du Laing, Niels De Pauw, et al. “Distribution and Mobilization of Pollutants in the Sediment of a Constructed Floating Wetland Used for Treatment of Combined Sewer Overflow Events.” WATER ENVIRONMENT RESEARCH 83.5 (2011): 427–439. Print.