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The effluent of a septic tank is
  • a)
    Fit for discharge into any open drain
  • b)
    foul and contains dissolved and suspended solids
  • c)
    as good as that from a complete treatment
  • d)
    none of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The effluent of a septic tank isa)Fit for discharge into any open drai...
Effluent of a Septic Tank

The effluent of a septic tank is the liquid waste that exits the tank after undergoing treatment. The question asks which statement is true about this effluent.

Option A: Fit for discharge into any open drain
- This statement is true because the effluent of a septic tank has undergone some level of treatment and is generally safe for discharge into the environment.
- However, it is important to note that the effluent should not be discharged into a water body, as it can still contain harmful pathogens and pollutants.

Option B: Foul and contains dissolved and suspended solids
- This statement is also true because the effluent of a septic tank is not completely treated and can still contain some solids and organic matter.
- However, the degree of fouling and the amount of solids can vary depending on factors such as the size of the tank, the frequency of pumping, and the quality of the influent.

Option C: As good as that from a complete treatment
- This statement is false because the effluent of a septic tank is not as well-treated as that from a complete sewage treatment plant.
- While the effluent is generally safe for discharge, it still contains some contaminants and pollutants that can be harmful to the environment.

Option D: None of these
- This option is incorrect as at least one of the statements is true.

Conclusion
- Option A is the correct answer because the effluent of a septic tank is generally safe for discharge into an open drain, although it should not be discharged into a water body.
- It is important to note that regular maintenance and pumping of the tank are necessary to ensure that the effluent remains safe and does not cause environmental harm.
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Community Answer
The effluent of a septic tank isa)Fit for discharge into any open drai...
This is a highly anaerobic tank, where both sedimentation and digestion takes place in one chamber, where raw treatment of sewage can directly be done. Hence, it is also called the primary unit.
  • Reduction of solids and organics  is occurred by settling and anaerobic processes, but the treatment is moderate.
  • Effluent creeps into the ground and is transmitted through a sewer to the centralized treatment plant.
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The effluent of a septic tank isa)Fit for discharge into any open drainb)foul and contains dissolved and suspended solidsc)as good as that from a complete treatmentd)none of theseCorrect answer is option 'A'. Can you explain this answer?
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