What is the primary reason untreated sewage is prohibited from being discharged into the sea?

Sewage Treatment and MARPOL Regulations

Quiz
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Education
•
Professional Development
•
Easy
Trojan Dino Malundo
Used 1+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sewage contains harmful bacteria that consume oxygen from the water, affecting marine life
Sewage contributes to marine biodiversity that consume oxygen from the water, affecting marine life
Sewage enhances water circulation that consume oxygen from the water, affecting marine life
Sewage prevents algal blooms that consume oxygen from the water, affecting marine life
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a Sewage Treatment Plant (STP) on a ship according to MARPOL Annex IV?
To filter air from sewage & discharge into the sea
To store sewage for later discharge
To treat sewage for safe discharge into the sea
To collect sewage for recycling & discharge into the sea
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the biofilter in an STP contribute to sewage treatment?
By removing suspended solids from sewage through aerobic microorganisms
By diffusing air bubbles to break down organic matter through aerobic microorganisms
By filtering out chemical pollutants through aerobic microorganisms
By chemically disinfecting sewage before discharge
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the consequence of discharging untreated sewage in proximity to coastal waters as per MARPOL Annex IV?
It promotes the natural growth of marine organisms
It depletes oxygen levels, causing harm to marine ecosystems
It helps in maintaining the natural nutrient balance
It enhances fish production by giving them unlimited supply of food source
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sewage waste component is classified as "blackwater" according to MARPOL Annex IV?
Wastewater from laundry drains
Drainage from toilets and urinals
Condensate from air conditioning systems
Waste from galley washbasins
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the chlorinator in a sewage treatment system?
To filter out large solids from sewage
To aerate the sewage for microorganism activity
To disinfect the treated sewage before discharge
To separate solid waste from water
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the settling/sedimentation chamber in a ship's sewage treatment plant?
To disinfect sewage using chemicals
To separate treated water from sludge
To filter out solid particles from untreated sewage
To reduce Chemical Oxygen Demand (COD)
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