Q
Sludge volume index is defined as the ratio of_______________?
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A
A. Percentage of sludge by volume to percentage of suspended solids by weight
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B
B. Percentage of sludge by volume to percentage of total solids by weight
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C
C. Percentage of suspended solids by weight to percentage of sludge by volume
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D
D. Percentage of total solids by weight to percentage of sludge by volume
Correct Answer:
A. A. Percentage of sludge by volume to percentage of suspended solids by weight