Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths

Yingying Zhang; Zhiyong Zhang; Zhi Wang; Haiqin Liu; Xuezheng Wen; Hongjie Qin; Shaohua Yan; Bruce Rittmann

doi:10.1061/9780784479858.027

Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths

Yingying Zhang, Zhiyong Zhang, Zhi Wang, Haiqin Liu, Xuezheng Wen, Hongjie Qin, Shaohua Yan, Bruce Rittmann

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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	https://doi.org/10.1061/9780784479858.027
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

Keywords

Bioremediation
Eutrophication
Nitrogen
Phosphorus
Water hyacinths

ASJC Scopus subject areas

Environmental Engineering
Water Science and Technology

Access to Document

10.1061/9780784479858.027

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Cite this

Zhang, Y., Zhang, Z., Wang, Z., Liu, H., Wen, X., Qin, H., Yan, S., & Rittmann, B. (2016). Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths. In 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 (pp. 251-261). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784479858.027

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

Zhang, Y, Zhang, Z, Wang, Z, Liu, H, Wen, X, Qin, H, Yan, S & Rittmann, B 2016, Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths. in 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), pp. 251-261, 16th World Environmental and Water Resources Congress 2016: Watershed Management, Irrigation and Drainage, and Water Resources Planning and Management, West Palm Beach, United States, 5/22/16. https://doi.org/10.1061/9780784479858.027

Zhang Y, Zhang Z, Wang Z, Liu H, Wen X, Qin H et al. Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths. In 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 https://doi.org/10.1061/9780784479858.027

Zhang, Yingying ; Zhang, Zhiyong ; Wang, Zhi ; Liu, Haiqin ; Wen, Xuezheng ; Qin, Hongjie ; Yan, Shaohua ; Rittmann, Bruce. / Bioremediation of Eutrophic Water by the Controlled Cultivation of Water Hyacinths. 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. pp. 251-261

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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.

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