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Reversing clogging in subsurface-flow constructed wetlands by hydrogen peroxide treatment: two case studies

(2009) WATER SCIENCE AND TECHNOLOGY. 59(10). p.2037-2046
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Abstract
One of the most frequently encountered operational problems in subsurface-flow constructed wetlands is clogging. Traditionally, the restoration procedure is to remove the clogged gravel or sand and replace it with clean material. This method, while effective, is costly and may require sections of the facility to be taken offline for extended periods of time. Another common remediation strategy is to have a resting period for each wetland cell, although this is not an option for very small systems which often consist of only one treatment cell. Recently, a more radical approach has been tested on a number of lab-scale and pilot-scale setups which consists of an aggressive oxidation of organic matter by means of hydrogen peroxide (H(2)O(2)). Results indicate that after treatment, clogging was substantially reduced and that H(2)O(2) did not appear to have a long-term negative effect on plants and biofilms. The outcomes of two full-scale tests are discussed in this paper.
Keywords
dairy wastewater, clogging, HSSF wetland, hydrogen peroxide (H(2)O(2)), operations and maintenance (O&M), sludge removal, VF wetland, SOIL

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Citation

Please use this url to cite or link to this publication:

MLA
Nivala, Jaime, and Diederik Rousseau. “Reversing Clogging in Subsurface-flow Constructed Wetlands by Hydrogen Peroxide Treatment: Two Case Studies.” WATER SCIENCE AND TECHNOLOGY 59.10 (2009): 2037–2046. Print.
APA
Nivala, J., & Rousseau, D. (2009). Reversing clogging in subsurface-flow constructed wetlands by hydrogen peroxide treatment: two case studies. WATER SCIENCE AND TECHNOLOGY, 59(10), 2037–2046.
Chicago author-date
Nivala, Jaime, and Diederik Rousseau. 2009. “Reversing Clogging in Subsurface-flow Constructed Wetlands by Hydrogen Peroxide Treatment: Two Case Studies.” Water Science and Technology 59 (10): 2037–2046.
Chicago author-date (all authors)
Nivala, Jaime, and Diederik Rousseau. 2009. “Reversing Clogging in Subsurface-flow Constructed Wetlands by Hydrogen Peroxide Treatment: Two Case Studies.” Water Science and Technology 59 (10): 2037–2046.
Vancouver
1.
Nivala J, Rousseau D. Reversing clogging in subsurface-flow constructed wetlands by hydrogen peroxide treatment: two case studies. WATER SCIENCE AND TECHNOLOGY. 2009;59(10):2037–46.
IEEE
[1]
J. Nivala and D. Rousseau, “Reversing clogging in subsurface-flow constructed wetlands by hydrogen peroxide treatment: two case studies,” WATER SCIENCE AND TECHNOLOGY, vol. 59, no. 10, pp. 2037–2046, 2009.
@article{3239758,
  abstract     = {One of the most frequently encountered operational problems in subsurface-flow constructed wetlands is clogging. Traditionally, the restoration procedure is to remove the clogged gravel or sand and replace it with clean material. This method, while effective, is costly and may require sections of the facility to be taken offline for extended periods of time. Another common remediation strategy is to have a resting period for each wetland cell, although this is not an option for very small systems which often consist of only one treatment cell. Recently, a more radical approach has been tested on a number of lab-scale and pilot-scale setups which consists of an aggressive oxidation of organic matter by means of hydrogen peroxide (H(2)O(2)). Results indicate that after treatment, clogging was substantially reduced and that H(2)O(2) did not appear to have a long-term negative effect on plants and biofilms. The outcomes of two full-scale tests are discussed in this paper.},
  author       = {Nivala, Jaime and Rousseau, Diederik},
  issn         = {0273-1223},
  journal      = {WATER SCIENCE AND TECHNOLOGY},
  keywords     = {dairy wastewater,clogging,HSSF wetland,hydrogen peroxide (H(2)O(2)),operations and maintenance (O&M),sludge removal,VF wetland,SOIL},
  language     = {eng},
  number       = {10},
  pages        = {2037--2046},
  title        = {Reversing clogging in subsurface-flow constructed wetlands by hydrogen peroxide treatment: two case studies},
  url          = {http://dx.doi.org/10.2166/wst.2009.115},
  volume       = {59},
  year         = {2009},
}

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