C15L5&6 MC

A trickling filter system is generally used

• to remove dissolved organic matter.

• to remove small objects.

• to remove phosphorus.

• to increase the amount of sewage sludge.

Which of the following involves the removal of phosphorous and nitrogen from sewage?

• tertiary sewage treatment

• primary sewage treatment

• secondary sewage treatment

• activated sludge sewage treatment

Which of the following removes larger particles from sewage by screening or settling?

• tertiary sewage treatment

• activated sludge sewage treatment

• secondary sewage treatment

• primary sewage treatment

Activated sludge sewage treatment is a type of primary wastewater treatment.

• True

• False

Tertiary treatment removes large particles by filtering water through large screens.

• True

• False

The organisms of shores and wetlands can remove pollutants.

• True

• False

Treated wastewater that meets federal and state drinking water standards is being used as drinking water.

• True

• False

Water diversion is part of the water-use planning process.

• True

• False

Tags

NGSS.MS-ESS3-4

The U.S. Federal Wild and Scenic Rivers Act of 1968 requires all federal agencies to consider the wild, scenic, or recreational value of rivers when planning river or adjacent land use.

• True

• False

Metropolitan areas must deal with a variety of issues to provide basic water services including:

• Water supply for human and industrial needs

• Wastewater collection and treatment

• Storm water collection and management

• Water supply for human and industrial needs and Wastewater collection and treatment

• All of the options are correct

Tags

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4