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Emission of Carbon Dioxide and Methane from Duckweed Ponds for Stormwater Treatment.
- Source :
-
Water Environment Research (10614303) . Sep2015, Vol. 87 Issue 9, p805-812. 8p. - Publication Year :
- 2015
-
Abstract
- This study determined the greenhouse gas emission from two laboratory-scale duckweed ponds for stormwater treatment. The rate of carbon dioxide (CO2) emission from the two duckweed systems was 1472 ± 721 mg/m²·d and 626 ± 234 mg/m²·d, respectively. After the removal of duckweeds, CO2 emissions decreased to 492 ± 281 mg/m²·d and 395 ± 53 mg/m²·d, respectively. The higher CO2 emissions in the duckweed systems were attributed to duckweed biomass decay on the pond soil surface. A thin-film model was able to predict the increasing CO2 concentrations in the closed static chamber during 2 weeks of sampling. The initial methane fluxes from the duckweed systems were 299 ± 74 mg/m²·d and 180 ± 91 mg/m²·d, respectively. After the removal of duckweeds, the flux increased to 559 ± 215 mg/m²·d and 328 ± 114 mg/m²·d, respectively. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10614303
- Volume :
- 87
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Water Environment Research (10614303)
- Publication Type :
- Academic Journal
- Accession number :
- 109559411
- Full Text :
- https://doi.org/10.2175/106143015X14362865226310