Abstract
A bioremediation project was carried out in an open ultra-eutrophic lake, Lake Caohai in 2011 to determine whether large-scale cultivation of water hyacinths could improve water quality. The coverage of water hyacinths reached an area of 4.30 km2 (211.0 kt) which is approximately 50% of lake area by November. After the controlled growth of water hyacinths, the concentrations of TN, NH4+-N, and TP decreased significantly in May and remained relatively stable from June to November. The abundance of DO and the decrease of NH4+-N concentrations can be benefit for fishes and aquatic ecosystems, and the decrease of TP concentrations may contribute to the reduction of phytoplantkton biomass. Assimilation by water hyacinths accounted for 64% of the removed N and 108% of the removed P, with the extra P coming from the sediments. The results demonstrated that large-scale water hyacinths can successfully reduce nitrogen and phosphorus loads in a eutrophic lake.
| Original language | English (US) |
|---|---|
| Title of host publication | World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - Papers from Sessions of the Proceedings of the 2016 World Environmental and Water Resources Congress |
| Publisher | American Society of Civil Engineers (ASCE) |
| Pages | 251-261 |
| Number of pages | 11 |
| ISBN (Electronic) | 9780784479858 |
| DOIs | |
| State | Published - 2016 |
| Event | 16th World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - West Palm Beach, United States Duration: May 22 2016 → May 26 2016 |
Other
| Other | 16th World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management |
|---|---|
| Country | United States |
| City | West Palm Beach |
| Period | 5/22/16 → 5/26/16 |
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Keywords
- Bioremediation
- Eutrophication
- Nitrogen
- Phosphorus
- Water hyacinths
ASJC Scopus subject areas
- Environmental Engineering
- Water Science and Technology
Cite this
Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths. / Zhang, Yingying; Zhang, Zhiyong; Wang, Zhi; Liu, Haiqin; Wen, Xuezheng; Qin, Hongjie; Yan, Shaohua; Rittmann, Bruce.
World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - Papers from Sessions of the Proceedings of the 2016 World Environmental and Water Resources Congress. American Society of Civil Engineers (ASCE), 2016. p. 251-261.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths
AU - Zhang, Yingying
AU - Zhang, Zhiyong
AU - Wang, Zhi
AU - Liu, Haiqin
AU - Wen, Xuezheng
AU - Qin, Hongjie
AU - Yan, Shaohua
AU - Rittmann, Bruce
PY - 2016
Y1 - 2016
N2 - A bioremediation project was carried out in an open ultra-eutrophic lake, Lake Caohai in 2011 to determine whether large-scale cultivation of water hyacinths could improve water quality. The coverage of water hyacinths reached an area of 4.30 km2 (211.0 kt) which is approximately 50% of lake area by November. After the controlled growth of water hyacinths, the concentrations of TN, NH4+-N, and TP decreased significantly in May and remained relatively stable from June to November. The abundance of DO and the decrease of NH4+-N concentrations can be benefit for fishes and aquatic ecosystems, and the decrease of TP concentrations may contribute to the reduction of phytoplantkton biomass. Assimilation by water hyacinths accounted for 64% of the removed N and 108% of the removed P, with the extra P coming from the sediments. The results demonstrated that large-scale water hyacinths can successfully reduce nitrogen and phosphorus loads in a eutrophic lake.
AB - A bioremediation project was carried out in an open ultra-eutrophic lake, Lake Caohai in 2011 to determine whether large-scale cultivation of water hyacinths could improve water quality. The coverage of water hyacinths reached an area of 4.30 km2 (211.0 kt) which is approximately 50% of lake area by November. After the controlled growth of water hyacinths, the concentrations of TN, NH4+-N, and TP decreased significantly in May and remained relatively stable from June to November. The abundance of DO and the decrease of NH4+-N concentrations can be benefit for fishes and aquatic ecosystems, and the decrease of TP concentrations may contribute to the reduction of phytoplantkton biomass. Assimilation by water hyacinths accounted for 64% of the removed N and 108% of the removed P, with the extra P coming from the sediments. The results demonstrated that large-scale water hyacinths can successfully reduce nitrogen and phosphorus loads in a eutrophic lake.
KW - Bioremediation
KW - Eutrophication
KW - Nitrogen
KW - Phosphorus
KW - Water hyacinths
UR - http://www.scopus.com/inward/record.url?scp=84976512040&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84976512040&partnerID=8YFLogxK
U2 - 10.1061/9780784479858.027
DO - 10.1061/9780784479858.027
M3 - Conference contribution
SP - 251
EP - 261
BT - World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management - Papers from Sessions of the Proceedings of the 2016 World Environmental and Water Resources Congress
PB - American Society of Civil Engineers (ASCE)
ER -