P-5010 Chapter 7 Wastewater Treatment and Disposal, Ashore and Afloat

Question 1

What term describes the stabilization of wastes through the action of microorganisms in the presence of oxygen?

Answer 1

Aerobic Waste Treatment

Question 2

What term describes waste stabilization brought about through the action of microorganisms in the absence of air or oxygen?

Answer 2

Anaerobic Waste Treatment

Question 3

What is a motor driven grinder used to pulp or liquefy sewage solids before they enter the Marine Sanitation Device?

Answer 3

Comminutor

Question 4

Which type of bacteria can adapt to grow in the presence of, as well as the absence of oxygen?

Answer 4

Facultative Anaerobic Bacteria

Question 5

What term describes the ships generated wastewater that originates form culinary activities, bathing, laundry, deck or other waste drains?

Answer 5

Grey water

Question 6

The Restricted zone is defined as the navigable waters of the United States, 0 to how many nautical miles form shore?

Answer 6

3 miles

Question 7

What program was established to control water pollution in the nation’s water-ways?

Answer 7

National Pollutant Discharge Elimination System (NPDES)

Question 8

Who promulgates Navy policy and assigns responsibilities concerning prevention, control, and abatement of environmental pollution caused by Naval Ships and shore stations?

Answer 8

Chief of Naval Operations (CNO)

Question 9

Who is overall responsible for evaluation of wastewater disposal systems ashore and afloat?

Answer 9

Chief, Bureau of Medicine and Surgery (BUMED)

Question 10

How many years are most discharge permits valid for?

Answer 10

5 years

Question 11

Which type of sewage treatment consists of methods designed to remove a considerable portion of the suspended solids and colloidal substances?

Answer 11

Primary

Question 12

Which type of sewage treatment oxidizes the suspended solids and the organic solids?

Answer 12

Secondary

Question 13

Which type of sewage treatment is defined as treatment of wastewater for the removal of pollutants not removed by conventional biological treatment processes?

Answer 13

Tertiary

Question 14

What is the most primitive of all the individual sewage disposal systems?

Answer 14

Pit Privy

Question 15

How many feet deep is a bored-hole latrine?

Answer 15

15-25’

Question 16

What term describes a covered pit into which raw sewage flows by gravity?

Answer 16

Septic Tank

Question 17

What are designed to remove sand and other gritty material that may damage pumps and valves, accumulate in sedimentation tanks or clog sludge drains?

Answer 17

Grit Chambers

Question 18

What are the primary agents in activated sludge process?

Answer 18

Aerobic bacteria

Question 19

What are shallow basins used for aerobic and anaerobic degradation or wastewater?

Answer 19

Stabilization ponds

Question 20

Stabilization ponds require approximately 1 acre for every how many persons served?

Answer 20

2,500

Question 21

What is the key element in ecology of an aerobic stabilization pond?

Answer 21

Algal photosynthesis

Question 22

What is the process by which a digested sludge is washed prior to further conditioning?

Answer 22

Elutriation

Question 23

What is a long-term method of storing sludge where there is large land area available?

Answer 23

Sludge Lagoons

Question 24

The overboard discharge of untreated sewage is is prohibited within how many nautical miles of the U.S. and territorial seas?

Answer 24

3

Question 25

What is the recirculating flush system designed for small craft and ships whose mission requires extensive operations within a restricted zone?

Answer 25

Koehler-Dayton

Question 26

What term describes the thermally accelerated, extended aeration activated sludge sewage treatment system on board LHA 1 class ships?

Answer 26

Pall Trinity Biological Treatment System

Question 27

What color must MSD valve handles and operating levers in the interior of the ship be?

Answer 27

gold