9-2. A flow of 20,000 maay which contains 100 mg/L of suspended solids is coagulated with 50 mg/L of alum. If 90 percent of the solids and chemical precipitates is removed in sedimentation estimate: (a) Total dry mass of sludge produced per day. (b) Total wet mass produced per day, assuming the sludge is 5 percent solids by weight. (c) Total volume produced per day, assuming the specific gravity of the wet sludge is 1.05.
9-2. A flow of 20,000 maay which contains 100 mg/L of suspended solids is coagulated with 50 mg/L of alum. If 90 percent of the solids and chemical precipitates is removed in sedimentation estimate: (a) Total dry mass of sludge produced per day. (b) Total wet mass produced per day, assuming the sludge is 5 percent solids by weight. (c) Total volume produced per day, assuming the specific gravity of the wet sludge is 1.05.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:9-2. A flow of 20,000 maay which contains 100 mg/L of suspended solids is coagulated
with 50 mg/L of alum. If 90 percent of the solids and chemical precipitates is
removed in sedimentation estimate:
(a) Total dry mass of sludge produced per day.
(b) Total wet mass produced per day, assuming the sludge is 5 percent solids by
weight.
(c) Total volume produced per day, assuming the specific gravity of the wet sludge
is 1.05.
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