alexa Assessment of Natural Self Restoration of the Water of Al-Mahmoudia Canal, Western Part of Nile Delta, Egypt
ISSN: 2168-9768

Irrigation & Drainage Systems Engineering
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Research Article

Assessment of Natural Self Restoration of the Water of Al-Mahmoudia Canal, Western Part of Nile Delta, Egypt

Alaa F. Abukila*

Drainage Research Institute, National Water Research Center, El-Qanater El-Khairiya, Egypt

*Corresponding Author:
Alaa F. Abukila
Drainage Research Institute
National Water Research Center
El-Qanater El-Khairiya
Post Code 13621/5, Egypt
E-mail: [email protected]

Received July 06, 2012; Accepted October 09, 2012; Published October 30, 2012

Citation: Abukila AF (2012) Assessment of Natural Self Restoration of the Water of Al-Mahmoudia Canal, Western Part of Nile Delta, Egypt. Irrigat Drainage Sys Eng 1:104. doi:10.4172/2168-9768.1000104

Copyright: © 2012 Abukila AF. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Al-Mahmoudia canal in northern edge of Beheira Governorate, west part of Nile Delta, has important role in the economic development and prosperity of the people in Beheira and Alexandria Governorates. It has been exploited to support agriculture, fisheries, public water supply, industry, hydroelectric power and recreation. The continuing deterioration of water quality in the canal has become a routine water pollution case. Therefore, it is necessary to solve the canal pollution problems and upgrade the water quality. The objective of this study was to characterize and understand the water quality of Al-Mahmoudia canal. Samples of water were collected monthly from eleven locations for 12 month during 2010-2011. In situ measurements included; Temp, TDS, pH and DO, and laboratory determinations included TSS, BOD5, COD, NO-3, NH4+, TC and FC, in addition to Cd, Cu, Fe, Mn, Ni, Pb and Zn. Natural self-purification model based on oxygen sag curve introduced by Streeter and Phelps was applied. The obtained results showed that the majority of water quality problems of Al-Mahmoudia canal are due to receive low grade water quality of Rosetta Branch. Natural self-purification is calculated and observed in two cases. The first is normal case, which no drainage
water is discharging into Al-Mahmoudia canal; hence, Edko irrigation pump station is stopping lift drainage water of
Zarkon drain into the canal. The result of this case showed that the deoxygenation rate is higher than the reoxygenation
rate from km 14 to km 17.87 of Al-Mahmoudia canal. The second is simulated case, which simulated Edko irrigation
pump station is lifting drainage water of Zarkon drain into the canal. The result of this case showed the deoxygenation
rate is higher than the reoxygenation rate from km 14 to km 18.06 of the canal and the reach need 10.83 km to get
rid of the influence of pollutants from Edko irrigation pump station discharge. The difference between conceptual and
pragmatic approaches was used in identifying the most polluted reaches by non-point pollution sources along the
canal. According to the obtained result the difference between observed and calculated values in the watercourse from
south to north direction has been increased and contribution of the nonpoint pollution sources at Al-Mahmoudia canal
is related to the four reaches.

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