Sewage water treatment 09-06-2021

Screening and comminution are preliminary treatment processes.

• True

• False

_____ devices remove materials which would damage equipment or interfere with a process.

• Grit

• Screening

• Oxidation

• Reduction

__________ represents the heavier inert matter in wastewater.

• Debris

• Waste

• Screens

• Grit

Supplemental means of aeration are often employed with an equalization basin to provide better mixing.

• True

• False

Which of the following should be provided in the case where aeration is absent?

• Screening devices

• Mechanical mixers

• Grit removers

• Sedimentation tank