Enhancing efficiency of nitrogen removal from wastewater in constructed wetlands
DOI:
https://doi.org/10.15587/1729-4061.2015.42451Keywords:
wastewater treatment, constructed wetlands, nitrogen removal, process intensification, anammoxAbstract
This study contributes to the enhancement of nitrogen removal, as well as to the understanding of internal nitrogen transformation processes in horizontal subsurface flow constructed wetlands. Constructed wetlands of this type are able to efficiently remove polluting organic materials, total suspended solids and pathogens from sewage, but nitrogen removal is usually of relatively low efficiency. However, constructed wetlands are a competitive sustainable alternative for conventional wastewater treatment technologies. The primary objective was to evaluate the influence of plants and anaerobic ammonium oxidation (anammox) bacteria on the treatment performance of the wetlands in order to improve the management of these systems. Laboratory-scale horizontal subsurface flow wetland mesocosms were set up in the specialized reactors. The experimental system consisted of three planted fixed bed reactors with a volume of 19.5 L and a surface area of 0.040 m2 each. Two of the reactors were planted with Juncus effusus and one was kept unplanted. All systems were fed with synthetic wastewater containing ammonium (NH4+)as a main contaminant. Hydraulic loading rate was fixed at 45 mm d-1. In accordance with the varying operational conditions, the total experimental period was divided into three phases. During the last phase of the experimental period one of the planted reactors was inoculated with an enrichment culture of anammox bacteria. In summary, experimental results have shown that prompting of anammox process by inoculation of externally enriched biomass could be of tremendous importance for increasing the effectiveness of nitrogen removal in horizontal subsurface flow constructed wetlands.
References
- García, J., Rousseau, D. P. L., Morató, J., Lesage, E., Matamoros, V., Bayona, J. M. (2010). Contaminant Removal Processes in Subsurface-Flow Constructed Wetlands: A Review. Critical Reviews in Environmental Science and Technology, 40 (7), 561–661. doi: 10.1080/10643380802471076
- Kadlec, R. H., Wallace, S. D. (2009). Treatment wetlands. Second edition. Boca Raton, Fl.: CRC Press, 1016.
- Vymazal, J. (2010). Constructed Wetlands for Wastewater Treatment. Water, 2 (3), 530–549. doi: 10.3390/w2030530
- Wu, S., Kuschk, P., Wiessner, A., Kästner, M., Pang, C., Dong, R. (2013). Response of Removal Rates to Various Organic Carbon and Ammonium Loads in Laboratory-Scale Constructed Wetlands Treating Artificial Wastewater. Water Environment Research, 85 (1), 44–53. doi: 10.2175/106143012x13415215907293
- Chen, Y.-C., Lo, S.-L., Lee, Y.-C. (2012). Distribution and fate of perfluorinated compounds (PFCs) in a pilot constructed wetland. Desalination and Water Treatment, 37 (1-3), 178–184. doi: 10.1080/19443994.2012.661270
- Rousseau, D. P. L., Vanrolleghem, P. A., De Pauw, N. (2004). Constructed wetlands in Flanders: a performance analysis. Ecological Engineering, 23 (3), 151–163. doi: 10.1016/j.ecoleng.2004.08.001
- Wu, M.-Y., Franz, E. H., Chen, S. (2001). Oxygen Fluxes and Ammonia Removal Efficiencies in Constructed Treatment Wetlands. Water Environment Research, 73 (6), 661–666. doi: 10.2175/106143001x143394
- Wiessner, A., Kappelmeyer, U., Kaestner, M., Schultze-Nobre, L., Kuschk, P. (2013). Response of ammonium removal to growth and transpiration of Juncus effusus during the treatment of artificial sewage in laboratory-scale wetlands. Water Research, 47 (13), 4265–4273. doi: 10.1016/j.watres.2013.04.045
- Wallace, S., Austin, D. (2008). Emerging Models for Nitrogen Removal in Treatment Wetlands. Journal of Environmental Health, 71 (4), 10–16.
- Vymazal, J. (2007). Removal of nutrients in various types of constructed wetlands. Science of the Total Environment, 380 (1-3), 48–65. doi: 10.1016/j.scitotenv.2006.09.014
- Martin, J. F., Reddy, K. R. (1997). Interaction and spatial distribution of wetland nitrogen processes. Ecological Modelling, 105 (1), 1–21. doi: 10.1016/s0304-3800(97)00122-1
- Vymazal, J. (2009). The use constructed wetlands with horizontal sub-surface flow for various types of wastewater. Ecological Engineering, 35 (1), 1–17. doi: 10.1016/j.ecoleng.2008.08.016
- Vymazal, J., Kröpfelová, L. (2009). Removal of Nitrogen in Constructed Wetlands with Horizontal Sub-Surface Flow: A Review. Wetlands, 29 (4), 1114–1124. doi: 10.1672/08-216.1
- Tanner, C. C.; Wong, M. H. (Ed.) (2004). Nitrogen Removal Processes in Constructed Wetlands. Wetlands ecosystem in Asia: Function and management. Amsterdam . Oxford: Elsevier, 480. doi: 10.1016/b978-044451691-6/50021-1
- Wießner, A., Kuschk, P., Kästner, M., Stottmeister, U. (2002). Abilities of Helophyte Species to Release Oxygen into Rhizospheres with Varying Redox Conditions in Laboratory-Scale Hydroponic Systems. International Journal of Phytoremediation, 4 (1), 1–15. doi: 10.1080/15226510208500069
- Kappelmeyer, U., Wießner, A., Kuschk, P., Kästner, M. (2002). Operation of a Universal Test Unit for Planted Soil Filters – Planted Fixed Bed Reactor. Engineering in Life Sciences, 2 (10), 311–315. doi: 10.1002/1618-2863(20021008)2:10<311::aid-elsc311>3.0.co;2-9
- Shved, O., Dehestaniathar, S., Novikov, V. (2014). Anammox enrichment and constructed wetland inoculation for improvement of wastewater treatment performance. J Adv Environ Health Res, 2 (3), 189–195.
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Copyright (c) 2015 Oleksa Shved, Romana Petrina, Veronika Chervetsova, Volodymyr Novikov
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