Water Treatment (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
Which flocculating agent is added during water treatment?
Which flocculating agent is added during water treatment?
Aluminium sulfate
Which materials are used in the filtration stage of water treatment?
Which materials are used in the filtration stage of water treatment?
Sand and gravel
What is the main purpose of chlorination in water treatment?
What is the main purpose of chlorination in water treatment?
Kill microorganisms
Why are fluoride ions added to water?
Why are fluoride ions added to water?
Prevent tooth decay
Which chemical is used to raise the pH of water?
Which chemical is used to raise the pH of water?
Calcium hydroxide
What decomposes organic matter in secondary sewage treatment?
What decomposes organic matter in secondary sewage treatment?
Bacteria
What is the name of the secondary sewage treatment process?
What is the name of the secondary sewage treatment process?
Activated sludge process
What does tertiary sewage treatment remove?
What does tertiary sewage treatment remove?
Nitrates and phosphates
Which sewage treatment stage is the most expensive?
Which sewage treatment stage is the most expensive?
Tertiary treatment
What causes eutrophication in water bodies?
What causes eutrophication in water bodies?
Excess nutrients
Which ions are examples of heavy metal pollutants?
Which ions are examples of heavy metal pollutants?
, ,
How are heavy metals removed from water?
How are heavy metals removed from water?
Precipitation
What health problem can excess nitrates cause?
What health problem can excess nitrates cause?
Blue baby syndrome