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Table 1

Two-way ANOVA showing the effect of the main factors (water treatment and season) and their interaction on physicochemical parameters of water at Kafr El-Shinawy drinking-water treatment plant – Damietta

Variable and treatment of variationdfFPVariable and treatment of variationdfFP
Temperature Silica 
Water treatment 1216.89 0.000 Water treatment 381.045 0.000 
Season 23956.6 0.000 Season 576.301 0.000 
Water treatment × season 75.704 0.000 Water treatment × season 208.962 0.000 
Turbidity Ammonia 
Water treatment 16419.6 0.000 Water treatment 13268.6 0.000 
Season 306.935 0.000 Season 79.881 0.000 
Water treatment × season 113.231 0.000 Water treatment × season 79.881 0.000 
pH Nitrite 
Water treatment 108.926 0.000 Water treatment 1216.00 0.000 
Season 30.894 0.000 Season 59.368 0.000 
Water treatment × season 1.6570 0.216 Water treatment × season 59.368 0.000 
Conductivity Nitrate 
Water treatment 0.1560 0.698 Water treatment 9130.08 0.000 
Season 365.173 0.000 Season 20.306 0.000 
Water treatment × season 0.7250 0.552 Water treatment × season 20.306 0.000 
Total alkalinity Total-N 
Water treatment 940.612 0.000 Water treatment 92852.0 0.000 
Season 1681.57 0.000 Season 22.522 0.000 
Water treatment × season 9.2190 0.001 Water treatment × season 22.522 0.000 
DO Ortho-P 
Water treatment 1315.09 0.000 Water treatment 13572.3 0.000 
Season 181.031 0.000 Season 4.250 0.022 
Water treatment × season 134.635 0.000 Water treatment × season 2.250 0.122 
BOD Total-P 
Water treatment 13489.7 0.000 Water treatment 3864.39 0.000 
Season 988.937 0.000 Season 6.556 0.004 
Water treatment × season 224.678 0.000 Water treatment × season 9.912 0.001 
Variable and treatment of variationdfFPVariable and treatment of variationdfFP
Temperature Silica 
Water treatment 1216.89 0.000 Water treatment 381.045 0.000 
Season 23956.6 0.000 Season 576.301 0.000 
Water treatment × season 75.704 0.000 Water treatment × season 208.962 0.000 
Turbidity Ammonia 
Water treatment 16419.6 0.000 Water treatment 13268.6 0.000 
Season 306.935 0.000 Season 79.881 0.000 
Water treatment × season 113.231 0.000 Water treatment × season 79.881 0.000 
pH Nitrite 
Water treatment 108.926 0.000 Water treatment 1216.00 0.000 
Season 30.894 0.000 Season 59.368 0.000 
Water treatment × season 1.6570 0.216 Water treatment × season 59.368 0.000 
Conductivity Nitrate 
Water treatment 0.1560 0.698 Water treatment 9130.08 0.000 
Season 365.173 0.000 Season 20.306 0.000 
Water treatment × season 0.7250 0.552 Water treatment × season 20.306 0.000 
Total alkalinity Total-N 
Water treatment 940.612 0.000 Water treatment 92852.0 0.000 
Season 1681.57 0.000 Season 22.522 0.000 
Water treatment × season 9.2190 0.001 Water treatment × season 22.522 0.000 
DO Ortho-P 
Water treatment 1315.09 0.000 Water treatment 13572.3 0.000 
Season 181.031 0.000 Season 4.250 0.022 
Water treatment × season 134.635 0.000 Water treatment × season 2.250 0.122 
BOD Total-P 
Water treatment 13489.7 0.000 Water treatment 3864.39 0.000 
Season 988.937 0.000 Season 6.556 0.004 
Water treatment × season 224.678 0.000 Water treatment × season 9.912 0.001 
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