IMPACT OF COVERING CANALS ON QUALITY OF IRRIGATION WATER: CASE STUDY 5th GANABIAT BAHR FAKUS, EGYPT | ||||
| Journal of Basic and Environmental Sciences | ||||
| Volume 1, Issue 4, October 2014, Page 156-166 PDF (266.22 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jbes.2014.369578 | ||||
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| Authors | ||||
| Sherien Abdel Aziz1; Abdelazim Negm2; Gamal Mustafa3; Mohamed Nassar3 | ||||
| 1Ministry of water resources and irrigation, West Sharkia Directorate, Egypt | ||||
| 2Environmental Engineering Dept. School of Energy and Environmental Engineering, | ||||
| 3Water and Water Structure Department , Faculty of engineering/ Zagazig University, Egypt | ||||
| Abstract | ||||
| Parts of the irrigation canals networks passes through urbanized or rural areas. This may causes some diseases due to many reasons such as misuse of the residents in this area. The Ministry of Water Resources and Irrigation decided to cover these parts of the canals network by reinforced concrete (RC) as a part of the national policy to improve the public health of the residents of those areas. Once the canal is covered by RC, an important issue is raised concerning the interaction between the covering materials and the irrigation water. This present research investigates the interactive environmental impact of the reinforced concrete covering and the irrigation water compared to standards. Thus, the current assessment adopted the comparison between the measured values of the chemical, physical and biological characteristics and the standard values provided by FAO and WHO. The 5th Ganabiat Bahr Fakus, Sharkia Governorate, Egypt was selected as a case study for the collecting samples for laboratory investigations. Five locations along the irrigation canal near and at the covered part were chosen in order to collect water samples. The characterization of water samples was made at the Central Laboratory for Environmental Quality Monitoring (CLEQM), National Water Research Center, (NWRC). The laboratory investigation indicated that the values of physicochemical parameters such as CO3, HCO3, TA, PH, etc., were almost suitable within the permissible values for irrigation. However, these values exceed the acceptable limits for reinforced concrete itself and it may harm the concrete. In addition, the biological assessment showed that the amounts of sewage water pollutants in irrigation canals are about 10 and 100 times the average permissible limits for the total coliform and fecal coliform, respectively. Heavy metals assessment showed that, it has not negative impact on irrigation water. | ||||
| Keywords | ||||
| Environmental Impact Water quality R.C. Covering Irrigation Canals Physicochemical Tests; water pollution; biological assessment | ||||
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