WATER PURIFICATION

METHOD 1: DISTILLATION

• Definition: The action of purifying a liquid by a process of heating and cooling
• Summarized, distillation is the process of removing pollutants from water by evaporation & condensation

USES FOR DISTILLATION

• Distillation is most useful for purifying water to allow humans to drink it
• It is also relatively easy to perform the process
• Also used to make alcohol

SEDIMENTATION

• Definition: The process of settling or being deposited as a sediment
• Summarized, pollutants settle to the bottom of the liquid and settle there

USES FOR SEDIMENTATION

• Happens naturally, so it requires practically no effort
• Semi-effective, makes water become cleaner, but it doesn't make it completely safe to drink, and it does not completely purify water.

BOILING WATER

• This method involves boiling the water for 15-20 minutes, this kills roughly 99.9% of living bacteria in water and vaporizes the majority of chemicals in the water.

USES OF BOILING WATER

• Kills roughly 99.9% of bacteria
• Makes pollutants become more concentrated

REVERSE OSMOSIS

• Definition: A process by which a solvent passes through a porous membrane in the direction opposite to that for natural osmosis when subjected to a hydrostatic pressure greater than the osmotic pressure

USES FOR REVERSE OSMOSIS

• Washes minerals and salt out of the water
• However, it does not remove chemicals and bacteria

SOURCES

• Enviroalternatives.com
• Ucla.edu

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