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Questions and Answers
What is the primary purpose of passing water through a sand filter?
What is the primary purpose of passing water through a sand filter?
Which of the following is a method of disinfecting sewage?
Which of the following is a method of disinfecting sewage?
What is the effect of chlorine treatment on sewage?
What is the effect of chlorine treatment on sewage?
What is removed from the water during sand filtration?
What is removed from the water during sand filtration?
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Why is chlorine treatment effective in disinfecting sewage?
Why is chlorine treatment effective in disinfecting sewage?
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Study Notes
Oil Spills
- Large oil spills have occurred in recent years, including the 2010 spill in the Gulf of Mexico.
Wastewater Treatment
- Wastewater is used water from various sources, including toilets, showers, baths, kitchen sinks, laundries, and industrial processes.
Primary Treatment
- Primary treatment removes large layers of waste, leaving a remaining liquid that can be sent to secondary treatment.
Secondary Treatment
- Secondary treatment removes more than 90% of suspended solids.
Tertiary Treatment (Effluent Polishing)
- Tertiary treatment is used to further clean water before discharging it into a sensitive ecosystem.
- Methods used in tertiary treatment include:
- Sand filtration to remove particulate matter
- Chlorine treatment, which is effective in disinfecting sewage
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Description
This quiz assesses your understanding of the environmental consequences of underwater oil drilling, including the impact of oil spills on marine ecosystems.
