Wastewater Treatment

What is chemical formula for water?

• H₂O

• HO₂

• 2HO

• HO

Only around 1% of the Earth's water is salty water

• True

• False

Water flows through a filter designed to remove the particles form.

• Agitation

• Coagulation

• Filtration

• Flocculation

This process called RO (reverse osmosis) filter system

• True

• False

Water pollution occurs when harmful and toxic waste, or chemicals, enter water bodies and gets dissolved.

• True

• False

Things we can do to save clean water, except:

• Taking shorter showers

• Make sure to pick up your trash

• Make sure to turn off the running tap when not in use

• Pour dangerous chemical solutions to the sink

These are steps of wastewater treatment, except:

• Flocculation

• Saponification

• Coagulation

• Sedimentation

The right order of wastewater treatment is

• Coagulation, Flocculation, Sedimentation, Filtration, Disinfection

• Coagulation, Disinfection, Flocculation, Sedimentation, Filtration

• Sedimentation, Filtration, Disinfection, Flocculation, Coagulation

• Filtration, Coagulation, Flocculation, Sedimentation, Disinfection

What disease is cause by water pollution? Except ...

• Cholera

• Influenza

• Tuberculosis

• Chickenpox

How does the development of urban area affect the river?

• No effect at all

• Water remains stable

• Pollutes the water

• Water tastes funny