Solution-Estimate the percent of suspended sediments

Estimate the percent of suspended sediments

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Reference no: EM131867503

Question:

A wastewater was tested in a settling column test with the following results in terms of suspended sediment concentration:

At t = 30 minutes
Depth below surface, h (cm)	Concentration remaining, c./c_o
38	0.23
118	0.81
198	0.94
278	0.97
358	0.98

At t = 60 minutes
Depth below surface, h (cm)	Concentration remaining, c/c_o
34	0.05
114	0.46
194	0.73
274	0.86
354	0.92

At t = 90 minutes
Depth below surface, h (cm)	Concentration remaining, c/c_o
32	0.03
112	0.23
192	0.52
272	0.70
352	0.83

a. What type of settling is indicated by these data?

b. This particular wastewater is proposed to be treated in a rectangular sedimentation tank having a detention time of 2 hours and a depth of 4 meters. Estimate the percent of suspended sediments that will be removed.

c. If the wastewater flow rate is 7,500 m³/day, what needs to be the area and volume of the sedimentation tank?

Reference no: EM131867503

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Estimate the percent of suspended sediments

Reference no: EM131867503

Reference no: EM131867503

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