Waste Water Treatment (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What does human waste in wastewater contain?
What does human waste in wastewater contain?
Harmful bacteria & nitrogen compounds
How does human waste impact aquatic ecosystems?
How does human waste impact aquatic ecosystems?
Depletes oxygen & promotes algae growth
What harmful substances are found in industrial wastewater?
What harmful substances are found in industrial wastewater?
Toxic metal compounds
What problems can agricultural wastewater cause?
What problems can agricultural wastewater cause?
Algal blooms & loss of biodiversity
What is the purpose of coarse filtration?
What is the purpose of coarse filtration?
Remove large particles & debris
What is sewage sludge?
What is sewage sludge?
Solid waste that settles at the bottom
What is effluent in wastewater treatment?
What is effluent in wastewater treatment?
Liquid on top with dissolved pollutants
What materials are used in fine filtration?
What materials are used in fine filtration?
Layers of sand & gravel
What conditions are needed for anaerobic digestion?
What conditions are needed for anaerobic digestion?
Absence of oxygen
What useful product does anaerobic digestion produce?
What useful product does anaerobic digestion produce?
Biogas as renewable energy
What type of bacteria are used in aerobic treatment?
What type of bacteria are used in aerobic treatment?
Bacteria that require oxygen
Why is chlorine added during wastewater treatment?
Why is chlorine added during wastewater treatment?
Kill bacteria & make water safe to drink
Why is wastewater treatment important for sustainability?
Why is wastewater treatment important for sustainability?
Manages water resources in scarce areas