490
W.W. Eckenfelder, Jr., CD. Magee and C.E. Adams, Jr.
Se (mg/1)
.0 25 50 7? 190 φ l?Q
200
4 0 0
600
Se (mg/1)
Fig.3. BOD Removal from Three Wastewaters
Eckenfelder (21) #Yang (22), *Quirk (7)
800
estimating aeration solids under facultative conditions Equation (6) is frequently
expressed:
S IS
& o
1
1 + Kt
(7)
The kinetic equations relate to soluble effluent BOD. In aerated lagoons, depending on
mixing intensities, baffling, etc., the effluent suspended solids may exceed 50 mg/1 and
will contribute to the total effluent BOD depending on the active biomass content. The
total effluent BOD can be estimated by:
BOD5 (effluent) = S e + 0.84 xX y
(8)
OXYGEN REQUIREMENTS
Oxygen is required for the metabolism of the BOD and for the endogenous respiration
of the biomass produced in the process. In the completely mixed basin, the oxygen
requirements can be estimated from the relationship:
0 2 /day = a ' S r + b'xX y
(9)
W.W. Eckenfelder, Jr., CD. Magee and C.E. Adams, Jr.
Se (mg/1)
.0 25 50 7? 190 φ l?Q
200
4 0 0
600
Se (mg/1)
Fig.3. BOD Removal from Three Wastewaters
Eckenfelder (21) #Yang (22), *Quirk (7)
800
estimating aeration solids under facultative conditions Equation (6) is frequently
expressed:
S IS
& o
1
1 + Kt
(7)
The kinetic equations relate to soluble effluent BOD. In aerated lagoons, depending on
mixing intensities, baffling, etc., the effluent suspended solids may exceed 50 mg/1 and
will contribute to the total effluent BOD depending on the active biomass content. The
total effluent BOD can be estimated by:
BOD5 (effluent) = S e + 0.84 xX y
(8)
OXYGEN REQUIREMENTS
Oxygen is required for the metabolism of the BOD and for the endogenous respiration
of the biomass produced in the process. In the completely mixed basin, the oxygen
requirements can be estimated from the relationship:
0 2 /day = a ' S r + b'xX y
(9)