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Treatment of Eutrophic-lake Water by Free Water Surface Wetland

Authors: Haodong Wu, Ping Huang, Junsan Wang

Abstract:

In China, with the rapid urbanization and industrialization, and highly accelerated economic development have resulted in degradation of water resource. The water quality deterioration usual result from eutrophication in most cases, so how to dispose this type pollution water higher efficiently is an urgent task. Hower, different with traditional technology, constructed wetlands are effective treatment systems that can be very useful because they are simple technology and low operational cost. A pilot-scale treatment including constructed wetlands was constructed at XingYun Lake, Yuxi, China, and operated as primary treatment measure before eutrophic-lake water draining to riverine landscape. Water quality indices were determined during the experiment, the results indicated that treatment removal efficiencies were high for Nitrate nitrogen, Chlorophyll–a and Algae, the final removal efficiency reached to 95.20%, 93.33% and 99.87% respectively, but the removal efficiency of Total phosphorous and Total nitrogen only reach to 68.83% and 50.00% respectively.

Keywords: Constructed wetland, Eutrophic-lake water, Nutrientremoval, Removal efficiency

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1332056

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References:


[1] J. Iamchaturapatr, S.W Yi, J.S Rhee, "Nutrient removals by 21 aquatic plants for vertical free surface-flow (VFS) constructed wetland," Ecological Engineering. 2007, 29(3): 287-293.
[2] D. Zhang, R.M. Gersberg, T.S. Keat, "Constructed wetlands in China," Ecological Engineering. 2009, 35(10): 1367-1378.
[3] N. Ran, M. Agami, G. Oron, "A pilot study of constructed wetlands using duckweed (Lemna gibba L.) for treatment of domestic primary effluent in Israel," Water Research. 2004, 38(9): 2241-2248.
[4] L. Li, Y. Li, D.K Biswas, Y. Nian, G. Jiang, "Potential of constructed wetlands in treating the eutrophic water: Evidence from Taihu Lake of China," Bioresource Technology. 2008, 99(6): 1656-1663.
[5] X.Z. Li, R.H.G. Jongman, Y.M. Hu, R. Bu, B. Harms, A.K. Bregtb and H.S. He, "Relationship between landscape structure metrics and wetland nutrient retention function: A case study of Liaohe Delta, China," Ecological Indicators. 2005, 5(4): 339-349.
[6] F. Zurita, J. De Anda, M.A. Belmont, "Treatment of domestic wastewater and production of commercial flowers in vertical and horizontal subsurface-flow constructed wetlands," Ecological Engineering. 2009, 35(5): 861-869.
[7] N. Gottschall, C. Boutin, A. Crolla and P. Champagne, "The role of plants in the removal of nutrients at a constructed wetland treating agricultural (dairy) wastewater, Ontario, Canada," Ecological Engineering. 2007, 29(2): 154-163.
[8] A. Wood, "Constructed wetlands in water pollution control: Fundamentals to their understanding," Water Science and Technology. 1994. 1995, 32(3): 21-29.
[9] State Environmental Protection Administration (2002). Environmental Quality Standards for Surface Water. Chinese National Standards. (GB3838-2002). http://www.sepa.gov.cn/tech/hjbz/bzwb/shjbh/shjzlbz/200206/W020061 027509896672057.pdf
[10] T.L. Ingersoll, L.A. Baker, "Nitrate removal in wetland microcosms," Water Research. 1998, 32(3): 677-684.
[11] R.H Kadlec, S. Wallace, "Treatment wetlands," Boca Raton, Florada: CRC Press, 1996: 893.
[12] L Yang, H.T Chang, M.N.L Huang, "Nutrient removal in gravel- and soil-based wetland microcosms with and without vegetation," Ecological Engineering. 2001, 18(1): 91-105.
[13] J. Coleman, K. Hench, K. Garbutt, A. Sexstone, G. Bissonnette and J. Skousen, "Treatment of Domestic Wastewater by Three Plant Species in Constructed Wetlands," Water, Air and Soil Pollution. 2001, 128(3): 283-295.
[14] C.A. Arias, M.D. Bubba, H. Brix, "Phosphorus removal by sands for use as media in subsurface flow constructed reed beds," Water Research. 2001, 35(5): 1159-1168.
[15] C. Vohla, R. Alas, K. Nurk, S. Baatz, Ü. Mander, "Dynamics of phosphorus, nitrogen and carbon removal in a horizontal subsurface flow constructed wetland," Science of the Total Environment. 2007, 380(1-3): 66-74.
[16] R.H. Kadlec, "The limits of phosphorus removal in wetlands," Wetlands Ecology and Management. 1999, 7(3): 165-175.
[17] H. Brix, "Functions of macrophytes in constructed wetlands," Water Science and Technology. 1994, 29(4): 71-78.
[18] N. Silvan, H. Vasander, J. Laine, "Vegetation is the main factor in nutrient retention in a constructed wetland buffer," Plant and Soil. 2004, 258(1): 179-187.
[19] A. Infante, W. Riehl, "The effect of Cyanophyta upon zooplankton in a eutrophic tropical lake (Lake Valencia, Venezuela)," Hydrobiologia 1984,113(1): 293-298.
[20] J.S. Thullen, J.J. Sartoris, S.M. Nelson. "Managing vegetation in surface-flow wastewater-treatment wetlands for optimal treatment performance," Ecological Engineering. 2005, 25(5): 583-593.