Preservation of Required Chlorine Concentration in Baghdad Water Supply Networks using On-Site Chlorine Injection

محتوى المقالة الرئيسي

Rafa H. Al-Suhaili
Riadh Fadhil Nsaif Al-Azzawe

الملخص

The chlorine concentration variation in Baghdad water networks was studied. The
chlorine data were collected from Mayoralty of Baghdad and Ministry of Environment
(MOE) for the networks for both sides of the city Karkh and Rasafa for (2008-2009). The
study of these data indicates that there are no systematic testing program .Classified GIS
maps showed that the areas far from the treatment plants have almost always low
chlorine concentration .This indicates that the problem of the low chlorine concentration
in the far areas is due to cracks of pipe along the conveyance path ,as expected. The area's
most frequently have low concentration are Al-sadir,Al-Kadhimya, and Al-Amiria . It
was found also that the chlorine concentrations were lowest in summer months than those
in winter months.The Amiria area district (636) was selected as a case study to test the
ability of using the quantitative- qualitative model in the EPANET software, to find the
required onsite chlorine injection point number, locations and dose, so as to raise the
chlorine concentration to the acceptable limits in the other nodes of the network. The
bulk decay coefficient was found to be (-2.212)1/day and the wall coefficients were
found to be between (-0.001)to(-0.9)1/day The main conclusion of this study is that the
onsite injection can improve the chlorine concentration in Baghdad water supply
networks. The EPANET model can be used effectively to obtain the required injection
program for this purpose.

تفاصيل المقالة

كيفية الاقتباس
"Preservation of Required Chlorine Concentration in Baghdad Water Supply Networks using On-Site Chlorine Injection" (2011) مجلة الهندسة, 17(04), ص 740–762. doi:10.31026/j.eng.2011.04.09.
القسم
Articles

كيفية الاقتباس

"Preservation of Required Chlorine Concentration in Baghdad Water Supply Networks using On-Site Chlorine Injection" (2011) مجلة الهندسة, 17(04), ص 740–762. doi:10.31026/j.eng.2011.04.09.

تواريخ المنشور

المراجع

M. Rashidul Islam and M. Hanif Chaudhry (October 1997) "Inverse Modeling of Chlorine Concentration in Pipe Networks under Dynamic Condition"J. Envir. Engrg. Volume 123, Issue 10, pp. 1033-1040 (October 1997).

L.A. Rossman, R.M Clark, and W.M. Grayman. Modeling chlorine residuals in drinking-water distribution systems.

Journal of Environmental Engineering ASCE, 120(4):803{820, July-August 1994.

M. Clark, Walter M. Grayman, and Richard M. Males (1988)"Contaminant Propagation in Distribution Systems"J.

Envir. Engrg. Volume 114, Issue 4, pp. 929-943 (1988).

M. Clark, Member, ASCE; Walter M. Grayman, Member, ASCE; Richard M. Males, Member, ASCE; and Alan F.

Hess, (1993)"Modeling Contaminant Propagation in Drinking-Water Distribution Systems"J. Envir. Engrg.

Volume 119, Issue 2, pp. 349-364 (1993).

Feng Shang, James G. Uber, and Marios M. Polycarpou (2002)"Particle Backtracking Algorithm for Water

Distribution System Analysis"J. Envir. Engrg. Volume 128, Issue 5, pp. 441- 450 (2002).

Zierolf, M.L.; Polycarpou, M.M.; Uber, J.G. Jul 1998"Development and auto calibration of an input-output model of

chlorine transport in drinking water distribution systems" Control Systems Technology, IEEE Transactions on Volume 6, Issue 4, 1998.

Dominic L. Boccelli, et.al (1998)"Optimal Scheduling of Booster Disinfection in Water Distribution Systems"J. Water Resour. Plng. and Mgmt. Volume 124, Issue 2, pp. 99- 111 (1998).

Lewis A. Rossman1, Paul F. Boulos,2 and Tom Altman3 (1993) "Discrete Volume-Element Method for Network

Water-Quality Models"J. Water Resour. Plng. and Mgmt. Volume 119, Issue 5, pp. 505-517 (1993).

Paul F. Boulos, et.al (1995)"Discrete Simulation Approach for Network- Water-Quality Models"J. Water Resour. Plng. and Mgmt. Volume 121, Issue 1, pp. 49-60 (1995).

M. Rashidul Islam and M. Hanif Chaudhry (1998)"Modeling of Constituent Transport in Unsteady Flows in Pipe Networks"J. Hydr. Engrg. Volume 124, Issue 11, pp. 1115-1124 (1998).

الأعمال الأكثر قراءة لنفس المؤلف/المؤلفين