Water Pollution

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  • Water Pollution
    • features of a water body that affect impacts from pollutants
      • Turbulence
      • Volume
        • affects dilution
      • Biodiversity
        • affects removal rates via biomagnification
      • Acidity
      • Geology
        • permeability/ impermeability
      • Catchment Area
        • size and landuse
      • Temperature
      • Depth
      • Flow Rate
        • in and out of the ecosystem
    • Thermal Pollution
      • Source: Thermal Powerstaions
      • Effects
        • changes in gas solubility within the water. e.g. CO2 & O2
    • Nutrient pollution
      • Organic
        • Urea
        • Sugar
        • Livestock Manure
          • impacts of livestock / sewage
            • Malodorus
            • increased suspended solids causing turbidity
            • 'coliform' pathogenic bacteria e.g. e-coli
        • Domestic Sewage
        • Slaughter house waste
        • Paper mills
        • Tanneries
        • Food Processing
        • Fermenting
        • Fish Farms
        • Silage
        • Distilleries / Breweries
        • Control Methods
          • Sewage Treatment
        • Effects
          • Organic Nutrients discharged into water
            • Aerobic bacteria decompose the organic matter
              • Reduces DO
                • Suffocation of aquatic organisms
                  • Organic Nutrients discharged into water
                    • Aerobic bacteria decompose the organic matter
                      • Reduces DO
                        • Suffocation of aquatic organisms
                        • Increases BOD
                  • Increases BOD
            • Inorganic
              • Nitrates
              • Phosphates
              • Ammonia
              • Effects
                • Nitrate/ Phosphate fertiliser leached into water
                  • Algal blooms occur
                    • Sunlight blocked from Macrophytes
                      • photosynthesis reduced or stopped
                        • Plants die
                          • BOD increases
                          • DO decreases
                            • Death of aquatic organism
                              • BOD increases
                              • Nitrate/ Phosphate fertiliser leached into water
                                • Algal blooms occur
                                  • Sunlight blocked from Macrophytes
                                    • photosynthesis reduced or stopped
                                      • Plants die
                                        • DO decreases
                                          • Death of aquatic organism
                                    • toxins released (especially from blue-green algae)
                      • toxins released (especially from blue-green algae)
          • Deoxygenation
          • Eutrophication

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