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Mathematical Simulation Of Agriculture Drainage Water Quality And Quantity And Its Effect On El-nobaria Canal

Congress: 2015
Author(s): sherif hassanin (Alexandria, Egypt), Alaa El-Sadek
Institute of drainage research1

Keyword(s): Sub-theme 10: Management of water resources,
AbstractEl-Nobaria canal irrigates 1.076*106 feddans, in which eight potable water intakes take their water from it which suffers from pollution by agriculture drainage water at seven locations. A 59% of such drainage water (DW) is coming from ElNasr-3 main drain which tends to cause a deterioration of El-Nobaria canal water quality downstream its outfall feeding all intakes (seven potable intakes and several branches) locating downstream km (52,960) on El-Nobaria canal. The DRAINMOD/ DRAINMOD-N/ DRAINMOD-S models have been tested at the field/field block scale using the field data of 2006/07 and 2007/08 to simulate outflow discharge, salinity and nutrient load at catchment's agricultural outlets of El-Delengat Extension drain, El-Bostan drain, ElNasr-3 main drain, and ElNasr-1 drain. Five measures are used to justify precision of the simulation results. A surface water quality model, QUAL2K, has been calibrated and validated on El-Nobaria canal according to the field data during summer 2007 & winter 2008, respectively. The study concentrated on salinity (TDS), nitrate-nitrogen (NO3-N), and TN. The water quality of El-Nobaria canal was investigated to estimate the impact of drain discharged on its quality. A proposed drainage reuse scenario is presented in this study to improve the water quality in El-Nobaria canal and its branches especially at the potable water intakes. 1. Amer, M.H., “Guideline of Agriculture drainage in Egypt”, DRI, NWRC, Delta Barrage, El-Qanater, Egypt, 2003. 2. Brevé, M.A., R.W. Skaggs, J.E. Parsons, & J.W. Gilliam. (1997). DRAINMOD-N, a nitrogen model for artificially drained soils & its field testing. Trans. ASAE, 40 (4): 1067-1085. 3. Brown, L.C., and T.O. Barnwell, “QUAL2E and QUAL2E-UNCAS”, Documentation and User Manual. Report EPA/600/3-87/007, U.S. EPA, Athens, GA, 1987. 4. Brown, L.C., and R.C. Whittemore, “Importance of Field Data in Stream Water Quality Modeling Using QUAL2E-UNCAS”, J.E.E., ASCE, Vol. 130, No. 6, pp. 643-647, June 2004. 5. Chapra, S.C., “Surface water-quality modeling”, McGraw-Hill, New York, 1997. 6. Chapra, S.C., and G.J. Pelletier, “QUAL2K: Documentation and User’s Manual”, Civil and Environmental Engineering Dept., Tufts University, Medford, MA., March 2006. 7. Drainage Research Institute (DRI), Project Team, Yearbook, 2006/2007. 8. Drainage Research Institute (DRI), Project Team, Yearbook, 2007/2008. 9. Drolc, A., and J. Zagorc Koncan, “Water Quality Modeling of the Sava river, Slovenia”, Water Resources Vol. 30, No. 11, pp. 2587-2592, 1996. 10. El-Nasr Drainage Directorate, “Geometrical properties of ElNasr-3 main drain”, Egypt, 2009. 11. El-Nobaria Irrigation Directorate, “Main water sources of the study area”, Egypt, 2009. 12. El-Sadek, A., J. Feyen, and W. Skaggs. 2001: Economics of nitrate loss from drained agricultural land. Accepted for publication in Journal of Environmental Engineering. 13. El-Sadek, A., Abu-Naser, A., and Feyan, J., (2003), Numerical Analysis of the Transport and Fate of Nitrate in the Soil and Nitrate Leaching to Drains. 14. El-Sadek, A., Upscaling field scale hydrology and water quality modelling to catchment scale, Water Resources Management, 2007, 21:149–169, Springer. 15. El-Sadek, A., and El-Sebaay, A., “Valuing the environment in crop profitability”, The 3rd I. Conference on Water Resources & Arid Environments (2008) and the 1st Arab Water Forum. 16. Kandil, H.M., Skaggs, W.R., & Abdel Dayem, S., (1995). DRAINMOD-S Water management model for irrigated arid lands, crop yield and applications. Irrigation & Drainage, 9: 239-258. 17. Keller, V., “Risk assessment of down-the-drain chemicals”, I. J. for S. Research into the Environment and its Relationship with Humankind, Wallingford, UK, 2005. 18. Nagy, H.M., and A.A. Salem, “Evaluation of Drainage Water Quality For Reuse-Acase study of the Umoum Drain in Egypt”, IALT, Vol. 5, No. 2, pp. 27-38, December 2003. 19. Park, S.S., and C.G. Uchrin, “An oxygen equivalent model for water quality dynamics in a macrophyte dominated river”, Ecological Modelling, 168, pp. 1–12, 2003. 20. Park, S.S., and Y.S. Lee, “A water quality modeling study of the Nakdong River, Korea”, Ecological Modelling 152, pp. 65–75, 2002. 21. Salazar, O., “Modelling Water Discharge and Nitrogen Loads from Drained Agricultural Land at Field and Watershed Scale”, PHD, Swedish U. of Agr. Sciences, Uppsala 2009. 22. Skaggs, R.W., 1978. A water management model for shallow water table soils. Technical Report 134. Univ. of North Carolina Water Resources Research Institute, Raleigh, N.C. 23. Skaggs, R.W., Brevé, M.A., J.W. Gilliam, and J.E., Parsons, Simulation of drainage water quality with DRAINMOD. Irrigation & Drainage systems 9: 259-277, 1995, The Netherlands. 24. Yang, C.C., S.O., Prasher, S.W., Seung, and R.M., Patel, “Simulation of nitrate-N movement in southern Ontario, Canada with DRAINMOD-N”, A.W.M., (2007), p 299-306, El-Sevier.
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