Civil Engineering - Waste Water Engineering - Discussion
Discussion Forum : Waste Water Engineering - Section 1 (Q.No. 22)
22.
The dimensions of a rectangular settling tank are : length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is
Discussion:
13 comments Page 1 of 2.
ABHILASH said:
2 years ago
Detention Time, T=2hr.
L=24m,
BorW=6m,
D=3m
Rate of flow, Q=?
Hence,
T=V/Q.
T =L*B*H/Q,
2=24*6*3/Q,
Q=216 cu m.
L=24m,
BorW=6m,
D=3m
Rate of flow, Q=?
Hence,
T=V/Q.
T =L*B*H/Q,
2=24*6*3/Q,
Q=216 cu m.
(5)
Mary nongbri said:
2 years ago
The detention period means how much time sewage remains inside the tank. It is calculated as:
Where
V = Volume of tank
Q = rate of flow of sewage
td = detention time
Calculation:
Given: Detention time, td = 2 hrs.
Dimension of tank: Length, L = 24 m, Width, W = 6 m and Depth, D = 3 m.
The volume of tank = L × B × D.
V = 24 × 6 × 3 = 432 m3
The rate of flow of sewage is calculated as:
Or
Q = 216 m3/hr.
Where
V = Volume of tank
Q = rate of flow of sewage
td = detention time
Calculation:
Given: Detention time, td = 2 hrs.
Dimension of tank: Length, L = 24 m, Width, W = 6 m and Depth, D = 3 m.
The volume of tank = L × B × D.
V = 24 × 6 × 3 = 432 m3
The rate of flow of sewage is calculated as:
Or
Q = 216 m3/hr.
(4)
Amu bokato said:
6 years ago
Thanks for explaining @Shinny.
Nagdive A said:
7 years ago
Thank you @Shiny.
Hardik.B.Patel said:
7 years ago
Q= (L*B*H)/T m^3/hr.
Q = Discharge (m^3/hr),
T = Time in Hour,
L = Leght (m),
B = Breath (m).
H = Height (m).
Q = Discharge (m^3/hr),
T = Time in Hour,
L = Leght (m),
B = Breath (m).
H = Height (m).
(1)
Vijay bhaskar said:
8 years ago
Detention time = V/Q.
Give data, Dt=2 hrs
Volume= 24*6*3,
Q=V/Dt, =24*6*3/2=216.
Give data, Dt=2 hrs
Volume= 24*6*3,
Q=V/Dt, =24*6*3/2=216.
Protap said:
8 years ago
Thanks @Shiny.
(1)
Shiv said:
8 years ago
q(rate of flow) = volume per unit time = 24 * 6 * 3/2 = 216 cubic meter/hr.
Avinash malewar said:
9 years ago
Thanks for the answer @Shiny.
Umesh said:
9 years ago
Thanks, @Shiny. It's very useful.
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