Worksheet 6 – Calculate maximum flow rate based on plant design and
surface loading
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1.
Calculate the maximum flow rate of a rectangular sedimentation tank (30m long x 10m wide x
4m deep) designed with a maximum surface loading of 50kL per day per m2.
2.
Calculate the maximum flow rate of the tank in Question 1 if the design surface loading is
only 25kL per day per m2.
3. Calculate the maximum flow rate of a treatment plant with four rectangular sedimentation
tanks (30m long x 10m wide x 4m deep) if the design surface loading is 50kL per day per
m2, for each tank:
a. in kL per day
b. in mL per day
c. in m3 per second
Worksheet 7 – Calculate maximum flow rate based on plant design and surface loading
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Answers
1.
15,000kL per day (15 mL per day)
2.
7,500kL per day (7.5mL per day)
3.
a. 15,000kL per day x 4 = 60,000 kL per day
b. 60mL per day
c. 0.694m3 per second
Worksheet 7 – Calculate maximum flow rate based on plant design and surface loading
Page 2 of 2