Performance of Subsurface Flow Constructed Wetland Systems in the Treatment of Al-Rustumia Municipal Wastewater using Continuous Loading Feed
DOI:
https://doi.org/10.31699/IJCPE.2019.2.5Keywords:
constructed wetlands, subsurface flow, wastewater treatment, wastewater parametersAbstract
This study aimed at comparing the performance of vertical, horizontal and hybrid subsurface flow systems in secondary treatment for the effluent wastewater from the primary basins at Al-Rustumia wastewater treatment plant, Baghdad, Iraq. The treatments were monitored for six weeks while the testsduration were from 4 to 12 September 2018 under continuous wastewater feeding for chemical oxygen demand (COD), total suspended solid (TSS),ammonia-nitrogen(NH4-N) and phosphate (PO4-P) in comparison with FAO and USEPA standards for effluent discharge to evaluate the suitability of treated water for irrigation purposes. Among the systems planted with Phragmites Australia, the hybrid subsurface flow system which consisted of vertical unit followed by horizontal one, considerably removed the pollutants more efficiently than the single operated systems. The planted hybrid subsurface flow wetland system was achieved the highest removal with a mean removal rate of COD,TSS, NH4-N, and PO4-Pat 99.3, 83.2,67.4 and 53% respectively and these percentages were decreased in the other systems. The results proved that the planted vertical subsurface flow unit can be removed the COD, TSS, NH4-N and PO4-Pwith values of 93, 71.1, 43.3 and 30.7%, respectively while the achieved removals by horizontal subsurface flow unit of 99, 74.3, 54.5 and 20.3%, respectively. The planted horizontal subsurface flow wetland, however, showed a good efficacy for all parameters in the treatment process except for PO4-P when it is compared with vertical system, however, there is a clear increase in the NO3-N effluent concentration for all treatment units.
Received on 06/03/2019
Accepted on 14/04/2019
Published on 30/06/2019
References
Hoekstra, A. and Mekonnen M. (2016). “Four billion people facing severe water scarcity.” Science Advances, 2(2).
Almuktar, S., Abed, S. N., and Scholz, M. (2018a). “Wetlands for wastewater treatment and subsequent recycling of treated effluent: a review”. Environmental Science and Pollution Research, 25(24), 23595–23623.
Abdul-Fattah, M. Ali (2011) “Reuse of domestic wastewater for irrigation: conceptual and basic design elements. ” Iraqi Journal of Chemical and Petroleum Engineering Vol 12 No 1 (2011).
Aquastant,(2008) “Irrigation in the Middle East region in figures – AQUASTAT Survey 2008”, Report, 2008.
LI, J. (2010). “Application of Decentralized WastewaterTreatment in Small towns and Villages of China.” A report no. 2010:15 submitted to Department of Energy and Environment Division of Environmental Systems Analysis Chalmers University of Technology Göteborg, Sweden
Vymazal , J. (2010) “Constructed Wetlands for Wastewater Treatment’,. Water 2010, 2(3), 530-549;
Vymazal, J. (2011). “Constructed wetlands for wastewater treatment: Five decades of experience.”. Environmental Science and Technology. 45 (1), 61–69.
Stefanakis, A. I., and Tsihrintzis, V. A. (2009). “Performance of pilot-scale vertical flow constructed wetlands treating simulated municipal wastewater: effect of various design parameters.” Desalination. 248(1–3), 753-770.
Stefanakis, A., Akratos, C. S., and Tsihrintzis, V. A. (2014). “Vertical Flow Constructed Wetlands.” 1st Edition, Eco-engineering Systems for Wastewater and Sludge Treatment, Elsevier Science.
Wu, S., Kuschk, P., Brix, H., Vymazal, J., and Dong, R. (2014). “Development of constructed wetlands inperformance intensifications for wastewater treatment: A nitrogen and organic matter targeted review.” Water Research, 57, 40-55.
Vymazal, J. (2015). “The role of natural and constructed wetlands in nutrient cycling and retention on the landscape.”
Taheriyoun, M., and Rad, M. (2017). “Simulation of organics and nitrogen removal from wastewater in constructed wetland.” European Water, 58, 135-141.
Khairallah A. and Abass, Z.(2011). “Improving Nutrient Removal in Constructed Wetland Wastewater Treatment”, Journal of Petroleum Research and Studies, vol. 136 no. 3, pp. 74–87, 2011.
Kouki, S., M’hiri, F., Saidi, N., Belaïd, S., and Hassen, A. (2009). “Performances of a constructed wetland treating domestic wastewaters during a macrophytes life cycle.” Desalination. 246(1–3), 452-467.
Shama, S., Perveen, I., Sumera, S. Ahmed, N. Ali, and Naeem, S.(2015) “A comparative study of macrophytes influence on wastewater treatment through subsurface flow hybrid constructed wetland”, Ecological Engineering., vol. 81, pp. 62–69, 2015.
Sayadi, M. H., Kargar, R., Doosti, M. R. and Salehi, H.(2012) “Hybrid constructed wetlands for wastewater treatment: A worldwide review”, Proceedings of the International Academy of Ecology and Environmental Sciences, 2012, 2(4):204-222 .
Raheek I. Ibrahim (2017), “Upgrading of Al-Rustamiyah Sewage Treatment Plant Through Experimental and Theoretical Analysis of Membrane Fouling” Iraqi Journal of Chemical and Petroleum Engineering, Vol 18 No 2 (2017).
Nivala, J., Headley, T., Wallace, S., Bernhard, K., Brix, H., Afferden, M. Van, and Arno, R. (2013). “Comparative analysis of constructed wetlands : The design and construction of the ecotechnology research facility in Langenreichenbach , Germany.” Ecological Engineering, Elsevier B.V., 61, 527–543.
Alanbari M. Ali and Muter, M. Salim (2018) “Evaluation of Environmental Sustainability Indicators of Northern Rustimeh Wastewater Treatment Plant in Baghdad, Iraq, Using Simapro7.1 Program”, Journal of Engineering and Sustainable Development, vol.22 , no. 05, pp. 188–199, 2018.
Toscano, A., Langergraber, G., Consoli, S., and Cirelli, G. L. (2009). “Modelling pollutant removal in a pilot-scale two-stage subsurface flow constructed wetlands.” Ecological Engineering, 35(2), 281–289.
Borin, M., Politeo, M., and Stefani, G. De. (2013). “Performance of a hybrid constructed wetland treating piggery wastewater.” Ecological Engineering, (51), 229– 236.
APHA , A., Water Environment Federation (2012) “Standard methods for the examination of water and wastewater. ” manual, Washington DC, USA.
Jeong, H., Kim, H., and Jang, T. (2016). “Irrigation water quality standards for indirect wastewater reuse in agriculture: A contribution toward sustainablewastewater reuse in South korea.” Water (Switzerland), 8(4), 169-187.
Zhao, Y.Q., Babatunde, A.O., Hu, Y.S., Kumar, J.L.G., and Zhao, X. H. (2011). “Pilot field-scale demonstration of a novel alum sludge-based constructed wetland system for enhanced wastewater treatment.” Process Biochem., 45(1), 278–283.
Caselles-Osorio,J. and Garc ıa, A. “Impact of different feeding strategies and plant presence on the performance of shallow horizontal subsurface-flow constructed wetlands’, Science. Total Environment., vol. 378, no. 3, p. 253–262., 2007.
Bialowiec, A., Janczukowicz, W., and Randerson, P. (2011). “Nitrogen removal from wastewater in vertical flow constructed wetlands containing LWA/gravel layers and reed vegetation.” Ecological engineering, 37(6), 897-902.
Raghad F. ALmilly, Mohanned H. Hasan(2017) “Waste Water Treatment by Liquid-Solid Adsorption Using Calcined Sand-Clay Mixture Adsorbent.” Iraqi Journal of Chemical and Petroleum Engineering Vol 18 No 2 (2017).
Herouvim, E. S. A. V. V. (2011). “Treatment of olive mill wastewater in pilot-scale vertical flow constructed wetlands.” Ecological Engineering, 37(6), 931–939.
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.
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