Drinking water --> Low level of salts and microbes --> NO HARMFUL SUBSTANCES
Treatment process --> Sedimentation and filtration to remove solids --> Sterilisation to kill microbes using chlorine Or distillation --> Expensive as lots of energy required
Desalination --> Few sources of natural freshwater so seawater converted to usable water
--> Distillation at lower pressure and boiling point to save energy
Test for pure water --> Boils at 100 degrees Celcius
For fluoridation of waater supplies --> Dental health improves
Against --> People have no choice and cannot measure how much each person gets
Filter Jugs --> Carbon (reduces chlorine levels and other organic impurities); Ion exchange resin ( Removes calcium, magnesium, lead, copper and aluminium ions); Silver nanoparticles ( Discourage growth of bacteria in the filter)
Comments
No comments have yet been made