Question
Download Solution PDFThe primary agent that helps in the decomposition of biodegradable matter in domestic sewage is __________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is bacterium.
Key Points
- Bacteria play a crucial role in the decomposition of biodegradable matter in domestic sewage.
- They break down organic compounds into simpler substances, which can be further processed and removed from the sewage.
- Different types of bacteria are involved in various stages of sewage treatment, including aerobic and anaerobic bacteria.
- Aerobic bacteria require oxygen to break down organic matter, while anaerobic bacteria do not.
- Effective sewage treatment relies on maintaining the right balance and environment for these bacteria to thrive.
- This biological process helps in reducing the BOD (Biochemical Oxygen Demand) of the sewage, making it safer to release into the environment.
Additional Information
- Chloride
- Chloride is primarily used in water treatment for disinfection and killing harmful pathogens.
- It does not play a role in the decomposition of organic matter in sewage.
- Nitrate
- Nitrate is a compound that can be formed during the decomposition process, but it is not an agent of decomposition itself.
- High levels of nitrates in water can lead to environmental issues such as eutrophication.
- Phosphate
- Phosphate is another compound that can be found in sewage, often from detergents and fertilizers.
- Like nitrate, it is not involved in the decomposition process but can contribute to water pollution if not properly managed.
Last updated on Jun 7, 2025
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