Self-Purification of Euphrates River in Babylon and Holly Karbala


  • Ali H. Hommadi National Center for Water Resources Management, Ministry of Water Resources, Baghdad, Iraq
  • Ahmed H. Salim National Center for Water Resources Management, Ministry of Water Resources, Baghdad, Iraq
  • Ayad H. Abbas National Center for Water Resources Management, Ministry of Water Resources, Baghdad, Iraq


self-purification, Euphrates River, pollutants, Sag curve


The stream of rivers and lakes are more susceptible to pollution than other water sources because they are in direct contact with various human activities, specifically agricultural and industrial ones. The main aim of this paper is to simulate the effect of two positions discharged sewage water to Euphrates River to determine the distance that river reach to self-purification. In this study the effect of two sites that discharge pollutants into the Euphrates River was investigated using the Streeter-Phelps equation: al-Hindiya and Twerij. Four scenarios were chosen for the drainage of the Euphrates River: 150, 170, 200, 315 m3/sec at the al-Hindiya-Euphrates junction and 150, 170, 200 m3/sec at the Twerij-Euphrates junction. In addition, four scenarios for the disposal of sewage waste which: 5, 6 , 8, 10 m3/sec for each discharge. The results demonstrated that the distance traveled to self-purification was 143 km at discharge150 m3/sec and al-Hindiya discharge is 5 m3/sec. While the distance was 65 km at discharge is 150 m3/sec and Tuwaireej discharge is 5 m3/sec. these distances decrease with the increase in the discharge of the river.


Adlan, N.H. and Al-Abbawy, D.A., Changes in Physicochemical Characteristics of Water along Shatt Al-Arab River.

Akoka, Y., 2012. Re-aeration coefficient modeling: a case study of river Atuwara in Nigeria. Research Journal of Applied Sciences, Engineering and Technology, 4(10), pp.1237-1243.

Al Bomola, A., 2011. Temporal and spatial changes in water quality of the Euphrates river-Iraq. TVVR11/5013.

Al kindi, g.y., hussain, t.a. and abed, a.n., 2021. Application of a one-dimensional steady state model for simulation the water quality in tigirs river. Journal of Engineering Science and Technology, 16(6), pp.4638-4649.

Ismail, A., Shareef, M., Hussein, H., Salman, H., Kadhim, N., Salim, A. and Matar, A., 2022. Two-dimensional simulation of pollutant dispersion at the confluence of Diyala river with Tigris river using CFD technique. Journal of Water Resources and Geosciences, 1(2), pp.85-100.

Phelps, E.B. and Streeter, H.W., 1958. A study of the pollution and natural purification of the Ohio River. US Department of Health, Education, & Welfare.

Rabeea, M.A., Al-Heety, A.J., Mohammed, M.I., Fayydh, A.M. and Elhag, M., 2021. Impact of Hijlan Creek springs on water quality of the Euphrates River and the hydrochemical characterization of the contamination plumes. Environmental Earth Sciences, 80(15), pp.1-15.

Shammas, N.K. and Wang, L.K., 2010. Fair, Geyer, and Okun's, Water and Wastewater Engineering: Water Supply and Wastewater Removal. John Wiley and Sons.

Whitehead, P.G. and Lack, T. eds., 1982. Dispersion and Self-Purification of Pollutants in Surface Water Systems: A Contribution to the International Hydrological Programme (Vol. 99). United Nations Educational.

Zubaidah, T., Karnaningroem, N. and Slamet, A., 2019. The self-purification ability in the rivers of Banjarmasin, Indonesia. Journal of Ecological Engineering, 20(2).



How to Cite

Hassan, A. H., Salim, A. H., & Abbas, A. H. (2023). Self-Purification of Euphrates River in Babylon and Holly Karbala. Journal of Water Resources and Geosciences, 2(1), 114–131. Retrieved from