1.waste water flow rate = 0.5 m3/s
2.detention time of an aerate grit chamber = 4 min
3.Length:Width 5:1, Depth = 3m.
4.Aeration rate = 12 L/s per meter of tank length.
Design an aerated grit chamber for the information above.
calculate the dimension of an aerated grit chamber.
Calculate total air supply
Total air supply =(12×14)/1000=0.168m3/s
3. Calculate average quantity of grit collected.
Average quantity of grit = (30m3/106m3)(0.5m3/s)(86400s/d)
=1.3m3/d
Determine the basin volume required to equalize the diurnal waste water flow, in order to maintain a relatively uniform influent flow pattern, in improve chemical feed control and pass reliability.
An industrial waste has the following flow pattern.