Water Treatment Process Concepts

The video explains the water treatment process from the Guarapiranga reservoir in São Paulo. It covers the journey of water from the reservoir to the treatment plant, detailing the steps of pumping, chemical treatment, coagulation, flocculation, sedimentation, and filtration. The video also highlights the importance of quality control and final adjustments to ensure safe drinking water.

Where is the water initially collected from?

• An underground well

• A reservoir

• A lake

• A river

What is the purpose of the large pumps in the initial treatment stage?

• To filter the water

• To add chemicals to the water

• To lift and transport the water

• To measure the water's pH

What role does chlorine play in the initial chemical treatment?

• It acts as a coagulant

• It oxidizes soluble metals

• It filters out large particles

• It balances the pH level

What is the purpose of adding aluminum sulfate during coagulation?

• To add flavor to the water

• To filter the water

• To neutralize negative charges

• To oxidize metals

What does the flocculant do in the water treatment process?

• It oxidizes metals

• It forms clumps of impurities

• It filters the water

• It neutralizes charges

What happens in the decantation tank?

• Water is pumped to higher altitudes

• Water is filtered

• Impurities settle at the bottom

• Chlorine is added

How often must the filters be cleaned?

• Every 5 hours

• Every 20 hours

• Every 10 hours

• Every 15 hours

What is the purpose of adding lime to the water?

• To neutralize negative charges

• To add flavor to the water

• To oxidize metals

• To balance the pH level

What is the role of fluoride in the final treatment stage?

• To filter the water

• To protect teeth from cavities

• To balance the pH level

• To oxidize metals

What is the purpose of the membrane system in the final treatment stage?

• To add chlorine

• To filter out fine particles

• To neutralize charges

• To oxidize metals