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Environmental impact assessment (EIA) of effluents from constructed wetlands on water quality of receiving watercourses

Natalia Carolina Donoso Pantoja UGent, Pieter Boets UGent, Evi Michels UGent, Peter Goethals UGent and Erik Meers UGent (2015) WATER AIR AND SOIL POLLUTION. 226(7).
abstract
The amount of animal manure produced in Flanders—Belgium by intensive animal farming generates a surplus that needs to be treated in order to achieve quality objectives set by the Nitrates Directive (91/676/EEC) and the European Water Framework Directive (2000/60/EU). After the physical separation and biological nitrification/denitrification processes, the liquid fraction of manure can be cost-efficiently and effectively treated by constructed wetlands (CWs). However, current discharge criteria limits do not evaluate whether nutrient loads from specific point sources (such as CWs) affect the water quality of their receiving waterway. Thus, we investigated whether a site-specific analysis, based on local environmental conditions, would yield more relevant discharge thresholds. In the present study, a standardized framework was developed for environmental impact assessment (EIA) of effluents from CWs on the water quality of receiving watercourses. This framework was tested as a case study on a manure treatment installation located in Langemark—Belgium. The effect of different impact scenarios on water quality and flow of the effluent and the receiving waterway was studied. Standardized EIA guidelines and sensitivity analyses were applied to determine the expected impacts of total nitrogen (TN), total phosphorous (P), chlorides (Cl−) and sulphates (SO4 2−) on the receiving watercourse. From this study, we concluded that the methodology currently applied requires adaptation when assessing the discharge from wetlands as current estimations of impact are overly conservative when compared with actual impact. In addition, results showed that expected impact might be mitigated by differentiating discharge limits between dry and wet periods.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
MANURE, NITROGEN, MANAGEMENT, TERTIARY-TREATMENT, EU Nitrates Directive, Mitigating measures, Environmental impact assessment (EIA), Constructed wetlands, MODEL
journal title
WATER AIR AND SOIL POLLUTION
Water Air Soil Pollut.
volume
226
issue
7
article number
205
pages
18 pages
Web of Science type
Article
Web of Science id
000357690100005
JCR category
WATER RESOURCES
JCR impact factor
1.551 (2015)
JCR rank
35/85 (2015)
JCR quartile
2 (2015)
ISSN
0049-6979
DOI
10.1007/s11270-015-2465-8
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
6847764
handle
http://hdl.handle.net/1854/LU-6847764
date created
2015-06-24 15:55:25
date last changed
2016-12-21 15:42:05
@article{6847764,
  abstract     = {The amount of animal manure produced in Flanders---Belgium by intensive animal farming generates a surplus that needs to be treated in order to achieve quality objectives set by the Nitrates Directive (91/676/EEC) and the European Water Framework Directive (2000/60/EU). After the physical separation and biological nitrification/denitrification processes, the liquid fraction of manure can be cost-efficiently and effectively treated by constructed wetlands (CWs). However, current discharge criteria limits do not evaluate whether nutrient loads from specific point sources (such as CWs) affect the water quality of their receiving waterway. Thus, we investigated whether a site-specific analysis, based on local environmental conditions, would yield more relevant discharge thresholds. In the present study, a standardized framework was developed for environmental impact assessment (EIA) of effluents from CWs on the water quality of receiving watercourses. This framework was tested as a case study on a manure treatment installation located in Langemark---Belgium. The effect of different impact scenarios on water quality and flow of the effluent and the receiving waterway was studied. Standardized EIA guidelines and sensitivity analyses were applied to determine the expected impacts of total nitrogen (TN), total phosphorous (P), chlorides (Cl\ensuremath{-}) and sulphates (SO4 2\ensuremath{-}) on the receiving watercourse. From this study, we concluded that the methodology currently applied requires adaptation when assessing the discharge from wetlands as current estimations of impact are overly conservative when compared with actual impact. In addition, results showed that expected impact might be mitigated by differentiating discharge limits between dry and wet periods.},
  articleno    = {205},
  author       = {Donoso Pantoja, Natalia Carolina and Boets, Pieter and Michels, Evi and Goethals, Peter and Meers, Erik},
  issn         = {0049-6979},
  journal      = {WATER AIR AND SOIL POLLUTION},
  keyword      = {MANURE,NITROGEN,MANAGEMENT,TERTIARY-TREATMENT,EU Nitrates Directive,Mitigating measures,Environmental impact assessment (EIA),Constructed wetlands,MODEL},
  language     = {eng},
  number       = {7},
  pages        = {18},
  title        = {Environmental impact assessment (EIA) of effluents from constructed wetlands on water quality of receiving watercourses},
  url          = {http://dx.doi.org/10.1007/s11270-015-2465-8},
  volume       = {226},
  year         = {2015},
}

Chicago
Donoso Pantoja, Natalia Carolina, Pieter Boets, Evi Michels, Peter Goethals, and Erik Meers. 2015. “Environmental Impact Assessment (EIA) of Effluents from Constructed Wetlands on Water Quality of Receiving Watercourses.” Water Air and Soil Pollution 226 (7).
APA
Donoso Pantoja, N. C., Boets, P., Michels, E., Goethals, P., & Meers, E. (2015). Environmental impact assessment (EIA) of effluents from constructed wetlands on water quality of receiving watercourses. WATER AIR AND SOIL POLLUTION, 226(7).
Vancouver
1.
Donoso Pantoja NC, Boets P, Michels E, Goethals P, Meers E. Environmental impact assessment (EIA) of effluents from constructed wetlands on water quality of receiving watercourses. WATER AIR AND SOIL POLLUTION. 2015;226(7).
MLA
Donoso Pantoja, Natalia Carolina, Pieter Boets, Evi Michels, et al. “Environmental Impact Assessment (EIA) of Effluents from Constructed Wetlands on Water Quality of Receiving Watercourses.” WATER AIR AND SOIL POLLUTION 226.7 (2015): n. pag. Print.