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Lu, Huan
- Variation of Organic Matter Decomposition in Constructed Wetlands with Enhancing Aeration
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Authors
Affiliations
1 College of Civil and Architecture Engineering, North China University of Science and Technology, Tangshan, CN
2 Drainage Engineering Technology Research Center of Tangshan City, Tangshan, CN
1 College of Civil and Architecture Engineering, North China University of Science and Technology, Tangshan, CN
2 Drainage Engineering Technology Research Center of Tangshan City, Tangshan, CN
Source
Nature Environment and Pollution Technology, Vol 17, No 2 (2018), Pagination: 507-510Abstract
Two different constructed wetlands were applied to remove organic matter of micro-polluted wastewater from a wastewater treatment plant. In this research, organic matter removal showed a favourable effect in two constructed wetlands. Moreover, the aeration device added to the wetlands’ bottom could obviously increase the removal rates of chemical oxygen demand (COD) in micro-polluted wastewater under this operational condition. In addition, the optimal operational condition for COD removal was evaluated by three dimensional (2D and 3D) contour plots while the bottom aeration device was added. The results showed that in horizontal zeolite subsurface constructed wetland (HZSW), the optimal removal rates of COD, which could reach above 95.56%, were obtained when the average daily aeration time was about 17~21h and hydraulic loadings were 0.16~0.24m3/(m2·d). In contrast, in horizontal limestone subsurface constructed wetland (HLSW), the optimal removal rates of COD, namely, 93.54~94.95%, could be obtained when the average daily aeration time was more than 16h and hydraulic loadings were about 0.13~0.32m3/(m2·d). In summary, the removal effects of COD increased obviously after the bottom aeration device was added in the two constructed wetlands.Keywords
Constructed Wetland, Bottom Aeration, Organic Matter Decomposition, Hydraulic Loading.Full Text
References
- Drizo, A., Forget, C., Chapuis, R.P. and Comeau, Y. 2006. Phosphorus removal by electric arc furnace steel slag and serpentinite. Water Research, 40(8): 1547-1554.
- Fu, Z., Yang, F., An, Y. and Xue, Y. 2009. Simultaneous nitrification and denitrification coupled with phosphorus removal in an modified anoxic/oxic-membrane bioreactor (A/O-MBR). Biochemical Engineering Journal, 43(2): 191-196.
- Greenway, M. 2003. Suitability of macrophytes for nutrient removal from surface flow constructed wetlands receiving secondary treated sewage effluent in Queensland, Australia. Water Science & Technology, 48(2): 121-128.
- Guo, C.H., Stabnikov, V. and Ivanov, V. 2010. The removal of nitrogen and phosphorus from reject water of municipal wastewater treatment plant using ferric and nitrate bioreductions. Bioresource Technology, 101(11): 3992-3999.
- Kaya, M. and Arslan, A.S. 2009. Analytical modeling of posttensioned precast beam-to-column connections. Materials & Design, 30(9): 3802-3811.
- Liu, X., Huang, S. and Liu, X. 2012. Characteristics of phosphorus adsorption on three substrates used in constructed wetland. Chinese Journal of Environmental Engineering, 6(10): 3367-3372.
- Precup, R.E. and Hellendoorn, H. 2011. A survey on industrial applications of fuzzy control. Computers in Industry, 62(3): 213-226.
- Prochaska, C.A. and Zouboulis, A.I. 2006. Removal of phosphates by pilot vertical-flow constructed wetlands using a mixture of sand and dolomite as substrate. Ecological Engineering, 26(3): 293-303.
- Summers, R.N., Guise, N.R. and Smirk D.D. 1993. Bauxite residue (red mud) increases phosphorus retention in sandy soil catchments in Western Australia. Fertilizer Research, 34(1): 85-94.
- Tao, W. and Wang, J. 2009. Effects of vegetation, limestone and aeration on nitritation, anammox and denitrification in wetland treatment systems. Ecological Engineering, 35(5): 836-842.
- Vohla, C., Kõiv, M., Bavor, H.J., Chazarenc, F. and Mander, Ü. 2011. Filter materials for phosphorus removal from wastewater in treatment wetlands-A review. Ecological Engineering, 37(1): 70-89.
- Wen, Y., Chen, Y., Zheng, N., Yang, D. and Zhou, Q. 2010. Effects of plant biomass on nitrate removal and transformation of carbon sources in subsurface-flow constructed wetlands. Bioresource Technology, 101(19): 7286-7292.
- Yang, S., Yang, F., Fu, Z., Wang, T. and Lei, R. 2010. Simultaneous nitrogen and phosphorus removal by a novel sequencing batch moving bed membrane bioreactor for wastewater treatment. Journal of Hazardous Materials, 175(1): 551-557.
- Zhu, W.L., Cui, L.H., Ouyang, Y., Long, C.F. and Tang, X.D. 2011. Kinetic adsorption of ammonium nitrogen by substrate materials for constructed wetlands. Pedosphere, 21(4): 454-463.
- Zhao, Y.Q., Zhao, X.H. and Babatunde, A.O. 2009. Use of dewatered alum sludge as main substrate in treatment reed bed receiving agricultural wastewater: long-term trial. Bioresource Technology, 100(2): 644-648.