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Wastewater Treatment: Tertiary Stage

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Questions and Answers

What is the purpose of tertiary treatment in the wastewater treatment process?

To raise the effluent quality before it is discharged to the receiving environment.

What type of treatment process may be used more than once in tertiary treatment?

More than one tertiary treatment process.

Where is the effluent discharged after tertiary treatment?

To the receiving environment (sea, river, lake, ground, etc.)

What is the primary function of lagooning in wastewater treatment?

Settlement and further biological improvement through storage in large biological man-made ponds Signup and view all the answers

What stage of wastewater treatment focuses on the removal of large objects and grit from the wastewater?

Primary treatment or mechanical treatment Signup and view all the answers

What process involves the removal of suspended solids from wastewater through gravity settling?

Sedimentation Signup and view all the answers

What stage of wastewater treatment involves the breakdown of organic matter by microorganisms?

Secondary treatment or biological treatment Signup and view all the answers

What is the purpose of sludge processing in wastewater treatment?

To manage and treat the solids removed during the treatment process Signup and view all the answers

What is the primary goal of the final step in the secondary treatment stage?

To produce sewage water containing very low levels of organic material and suspended matter Signup and view all the answers

Which treatment stage involves the physical removal of large objects from wastewater?

Primary Treatment Signup and view all the answers

What process involves the settling of suspended solids to the bottom of a tank?

Sedimentation Signup and view all the answers

What is the primary purpose of sludge processing in wastewater treatment?

To further treat and manage waste sludge produced during the treatment process Signup and view all the answers

What stage of wastewater treatment is characterized by the use of microorganisms to break down organic matter?

Secondary Treatment Signup and view all the answers