Effect of yearly temperature variations on removal efficiency of nutrients from wastewater treatment plant in Iraq
Abstract
In this study, the use of the modeling software GPS-X 6.1 specialized in the design of sewage treatment units. To remove the phosphorus and nitrogen from the treated wastewater and make it identical to the Iraqi standards for the purpose of recycling and use in agriculture in the district of Al-Rumaitha in Al-Muthanna province in southern Iraq. The effect of changing the temperature during one year on the quality of the water produced, and its effect on the efficiency of the treatment plant in the removal of phosphorus and nitrogen was studied. Results show that a series of conditions of anaerobic, oxygen-oxygenated and aerobic reactors help to efficiently remove biological nutrients. Concentrations of phosphorus compounds, nitrogen compounds, COD, BOD, and TSS were less than permissible environmental determinants. Except for the release of phosphorus compounds during the summer (July and August) due to the sensitivity of phosphorus-containing organisms to the effect of temperature. The increased concentrations of phosphorus produced in summer were processed by adding chemicals dosing (Al2(SO4)3 or iron) in various stages of the wastewater treatment plant and required dosage of alum in the range of 0.4-0.8 kgAl / kg P influent, depending on the dosage strategy.
References
2. Ghawi A. H., 2018a. Optimum design of phosphorus and nitrogen removal from domestic wastewater treatment plant. International Journal of Engineering and Technology (UAE), 7 (4.20) 310-315.
3. Ghawi A. H., 2018b, Study on the development of household wastewater treatment unit. Journal of Ecological Engineering. Vol. 19 (2), 63-71.
4. Ghawi, A. H. 2019. Development of the greywater domestic treatment unit for irrigation of the garden in rural areas. Journal of Ecological Engineering, 20(3), 46-56. https://doi.org/10.12911/22998993/99732
5. Kim B.H., Kang Z., Ramanan R., Choi J.E., Cho D.H., Oh H.M., and Kim H., 2014, Nutrient removal and biofuel production in high rate algal pond using real municipal wastewater. J. Microbiol. Biotechnol., 24, pp. 1123-1132.
6. Lee C.S., Lee S.A., Ko S.R., Oh H.M., and Ahn C.Y., 2015, Effects of photoperiod on nutrient removal, biomass production, and algal-bacterial population dynamics in lab-scale photo bioreactors treating municipal wastewater. Water Res., 68, pp. 680-691.
7. Mark E. G., and Robert S. C., 2017, The Zeolite-Anammox Treatment Process for Nitrogen Removal from Wastewater—a Review. Water 9, 901; doi:10.3390/w9110901 www.mdpi.com/journal/water.
8. Mata T.M., Martins A.A., and Caetano N.S., 2010, Microalgae for biodiesel production and other applications: A Review. Renew. Sustain. Energy Rev., 14, pp. 217-232.
9. Metcalf and Eddy 2003, Wastewater engineering: treatment and reuse. Fourth Edition, McGraw-Hill, New York.
10. Pasereh F., Borghei S. M., Hosseini S.N., and Javid A.H., 2017, Removal of Nitrogen and Phosphorus Simultaneously from Sanitary Wastewater of Yasouj in Pilot-Scale in 5-Stage Bardenpho Process. Bulgarian Chemical Communications, Volume 49, Special Issue J, (pp. 329 – 320).
11. Samorì G., Samorì C., Guerrini F., and Pistocchi R., 2013, Growth and nitrogen removal capacity of desmodesmus communis and of a natural microalgae consortium in a batch culture system in view of urban wastewater treatment: Part I. Water Res., 47, pp. 791-801.
Copyright (c) 2020 Al-Qadisiyah Journal For Humanities Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
This work is licensed under a Creative Commons Attribution 4.0 International License.
1. The Authors submitting a manuscript do so on the understanding that if accepted for publication, copyright of the article shall be assigned to Al-Qadisiyah Journal For Humanities scinces (QJHS), University of Al-Qadisiyah as publisher of the journal.
2. Copyright encompasses exclusive rights to reproduce and deliver the article in all form and media, including reprints, photographs, microfilms and any other similar reproductions, as well as translations. The reproduction of any part of this journal, its storage in databases and its transmission by any form or media, such as electronic, electrostatic and mechanical copies, photocopies, recordings, magnetic media, etc. , will be allowed only with a written permission from Al-Qadisiyah Journal of Humanities scinces (QJHS), University of Al-Qadisiyah.
3. Al-Qadisiyah Journal of Humanities scinces (QJHS) , University of Al-Qadisiyah, the Editors and the Advisory International Editorial Board make every effort to ensure that no wrong or misleading data, opinions or statements be published in the journal. In any way, the contents of the articles and advertisements published in the journal Al-Qadisiyah Journal of Humanities scinces (QJHS), University of Al-Qadisiyah are sole and exclusive responsibility of their respective authors and advertisers.