Topic explanation

Standard explanation

Water treatment is the use of physical and chemical processes to improve water quality so that the water becomes suitable for a particular purpose.

Key points

• Beginner: Water treatment makes water cleaner and safer. It often removes dirt first, then smaller particles,
• Intermediate: Treatment uses several stages because contaminants behave differently. Suspended solids can be remov
• Water treatment combines physical and chemical processes suited to particular contaminants.
• Settling and filtration address suspended particles; disinfection addresses harmful microorganisms.
• Filtration does not remove every dissolved chemical.

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