Sludge volume index is defined as the ratio of_______________?
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A. percentage of total solids by weight to percentage of sludge by volume
C. percentage of suspended solids by weight to percentage of sludge by volume
D. percentage of sludge by volume to percentage of total solids by weight
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.