Engineering Board Exam Reviewer · Environmental Engineering · medium
The sludge volume index (SVI) is used to evaluate the:
- Settleability of activated sludge
- BOD of influent
- Gas production of digesters
- Hardness of water
Answer
A. Settleability of activated sludge
Solution
SVI = settled volume (mL/L)/MLSS (g/L). Good settling: SVI 50-150 mL/g.
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