Water quality analysis and model simulation for the second largest polluted lake in Egypt

  • Authors

    • Diaa seifSeif Alexandria university
    • Mahmoud Nasr
    • Mohamed R. Soliman
    • Medhat Moustafa
    • Walid Elbarki
    2018-08-21
    https://doi.org/10.14419/ijet.v7i3.13593
  • MIKE21 Simulator, Multivariate Statistical Analysis, Spatial Variation, Water Quality Index.

  • This study investigated the spatial variation in the water quality parameters of Burullus Lake using multivariate analysis and MIKE21 model. The lake was classified into zone-1 at north-east (Z1), zone-2 at south-east (Z2), zone-3 at north-middle (Z3), zone-4 at south-middle (Z4), zone-5 at north-west (Z5), zone-6 at south-west (Z6), and zone-7 at west (Z7). The obtained parameters were temperature 21.5±5.0 ºC, pH 8.2±0.6, dissolved oxygen (DO) 5.9±1.0 mg/L, biological oxygen demand (BOD) 23.9±5.7 mg/L, NH3-N 2.5±0.3 mg/L, NO2-N 1.9±0.3 mg/L, NO3-N 1.2±0.3 mg/L, PO4-P 1.9±0.3 mg/L, SiO4 3.2±0.1 mg/L, Chlorophyll-a (Chl-a) 88.2±10.8 µg/L, and salinity 3.2±1.0 g/L. Principal component analysis showed that agricultural drainage water was the key factor influencing the water quality characteristics of Burullus Lake. Water quality index (WQI) varied between “Bad†to “Mediumâ€, suggesting that the lake wasn’t suitable for irrigation and fish growth; however, it was appropriate for some aquatic life. A MIKE21 model was developed to provide a recommendation scenario that could be used to enhance the water quality of Burullus Lake. By improving the water quality of precise drains (namely drains 7 and 8), the WQI at Z4 and Z6 modified from “Bad†to “Mediumâ€. The period required to achieve this self-purification was 5 months.

     

     

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  • How to Cite

    seifSeif, D., Nasr, M., R. Soliman, M., Moustafa, M., & Elbarki, W. (2018). Water quality analysis and model simulation for the second largest polluted lake in Egypt. International Journal of Engineering & Technology, 7(3), 1762-1767. https://doi.org/10.14419/ijet.v7i3.13593