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design and sizing wwtp waste water treatment
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Dr. SBiological Wastewater Treatment
Designed By: Ramy R. SalemAdvisor : Dr. Husam Al-Najar
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Biological Wastewater Treatment
Designed by : Ramy R. Salem
Advisor : Dr. Husam Alnajar Activated Sludge System
INPUT DATA
Flow = 12700BOD5 (soluble) = 84 mg/L
(BOD5)total = 30 mg/LSuspended Solids(SS)= 30 mg/L
(BOD5)soluble in effluent = 11.1 mg/L
Micro-organism Growth Constant
µm = 2.5 Concentration of Biomass(X) =
Kd = 0.05
Y = 0.5
Ks= 100
5.0056319
Minimum Sludge retension time (day) = 0.9163347 dayS/F = 5.4626679 OK
2.0408163 S>Smin OK Hydranlic detension time θ (day ) = 0.0486438
617.77605
Food to micro-organism ratio in the reactor (F/M) = 0.57561312 OKmg BOD5 / mg MLVSS .d
Biomass production per day (Px) (Kg/d) = 461.79183
46.179183
7257.1429
5442.8571
Oxygen reqirements = 270.08559 kg O2/d
m3/d
d-1
d-1
mg VSS/mg BOD5 removed
mg BOD5/L
The Solid retension time θc (day) =
S min
Volume of the tank (m3) =
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
Activated Sludge System BOD removal
Concentration of Biomass(X) = 3000 mg MLVSS/L 1600
4800
Xr = 10000 mg VSS/L
12700 7257.143
84
5442.857 46.17918
S (mg/L)= 11.1 S (mg/L)= 11.1
Xr = 10000
Q0(m3/d)= Qe(m3/d)=
S0 (mg/L)= Xe neigligable
Qr(m3/d)= Qw(m3/d)=
Areation tank Areation tank Sed tankSed tank
Designed By : Ramy R. Salem
Advisor : Dr. Husam Alnajar Activated Sludge System
INPUT DATA
Flow = 12960BOD5 (soluble) = 84 mg/L
(BOD5)total = 30 mg/LSuspended Solids(SS)= 30 mg/L
(BOD5)soluble in effluent = 11.1 mg/L
Micro-organism (N) Growth Constant
(µm)n = 0.25
(Kd)n = 0.04(Y)n = 0.2 mg VSS/mg NH4-N removed (Ks)n= 0.4
Micro-organism Growth Constant
µm = 2.5 Concentration of Biomass(X) =
Kd = 0.05
Y = 0.5
Ks= 100
10
Minimum Sludge retension time (day) = 0.0761905 day
S/F = 2.1 OK
0.0761905 S>Smin OK Hydranlic detension time θ (day ) = 0.0486438
2437.1532
Food to micro-organism ratio in the reactor (F/M) = 0.16543892 OK
m3/d
d-1
d-1
mg/L
d-1
d-1
mg VSS/mg BOD5 removed
mg BOD5/L
The Solid retension time θc (day) =
S min
Volume of the tank (m3) =
mg BOD5 / mg MLVSS .dBiomass production per day (Px) (Kg/d) = 408.42013
110.37077
7765.7506
5194.2494
Oxygen reqirements = 2764.896 kg O2/d
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
Activated Sludge System BOD Removal & Nitrification
TKN0 = 40
TKN = 1
Concentration of Biomass(X) = 3000 mg MLVSS/L 1600
4800
Xr = 10000 mg MLVSS/L
12960
84
40
mg/L
mg/L
Q0(m3/d)= Qe(m3/d)=
S0 (mg/L)= Xe neigligable
TKN0(mg/L) = TKN0(mg/L) =
Areation tank Areation tank Sed tankSed tank
5194.249
S (mg/L)= 6.382979 S (mg/L)=
Xr =
Qr(m3/d)= Qw(m3/d)=
7765.751
0.509091
110.3708
6.382979
10000
Designed By : Ramy R. Salem
Advisor : Dr. Husam Alnajar Activated Sludge System
INPUT DATA
Flow = 12960BOD5 (soluble) = 84 mg/L
(BOD5)total = 30 mg/LSuspended Solids(SS)= 30 mg/L
(BOD5)soluble in effluent = 11.1 mg/L
Micro-organism (N) Growth Constant
(µm)n = 0.25
(Kd)n = 0.04(Y)n = 0.2 mg VSS/mg NH4-N removed (Ks)n= 0.4
Micro-organism Growth Constant
µm = 2.5 Concentration of Biomass(X) =
Kd = 0.05
Y = 0.5
Ks= 100
BOD Removal
5.0056319
Minimum Sludge retension time (day) = 0.9163347 day
S/F = 5.4626679 OK
2.0408163 S>Smin OK Hydranlic detension time θ (day ) = 0.0972876
1260.8469
m3/d
d-1
d-1
mg/L
d-1
d-1
mg VSS/mg BOD5 removed
mg BOD5/L
The Solid retension time θc (day) =
S min
Volume of the tank (m3) =
Food to micro-organism ratio in the reactor (F/M) = 0.57561312 OKmg BOD5 / mg MLVSS .d
Biomass production per day (Px) (Kg/d) = 470.10523
47.010523
10739.981
2287.0588
Oxygen reqirements = 2764.896 kg O2/d
54.054054Minimum Sludge retension time (day) = 4.7619048 day
Hydranlic detension time θ (day ) = 0.0888889
1147.8213
Food to micro-organism ratio in the reactor (F/M) = 0.3 mg TKN/mg Vss.d0
Biomass production per day (Px) (Kg/d) = 31.852041
3.1852041
10634.227
2278.7628
2301.4821
104643.27
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
NH3 Removal (Nitrification)
The Solid retension time θc (day) =
Volume of the tank (m3) =
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
Oxygen reqirements (kg O2/d) =
Volume of air to be supplied(m3/d) =
Activated Sludge System BOD Removal & Nitrification (Seperated processes)
TKN0 = 40
TKN = 1
Concentration of Biomass(X) = 1500 mg MLVSS/L 1600
4800
Xr = 10000 mg MLVSS/L
12960 10672.94
84
40 40
1260.8
mg/L
mg/L
Q0(m3/d)= Qe(m3/d)=
S0 (mg/L)= Xe neigligable
TKN0(mg/L) = TKN0(mg/L) =
Areation tank Areation tank Sed tankSed tank
2287.059
S (mg/L)= 11.1 S (mg/L)=
mg TKN/mg Vss.d
Qr(m3/d)= Qw(m3/d)=
12912.9895 12909.8
1
1147.821
Qe(m3/d)= Qe(m3/d)=
TKN0(mg/L) = Sed tankSed tank
NitrificationNitrification Sed tankSed tank
47.01052 3.185204
11.1
Qw(m3/d)=
Designed By : Ramy R. Salem
Advisor : Dr. Husam Alnajar Activated Sludge System
INPUT DATA
Flow = 12960BOD5 (soluble) = 84 mg/L
(BOD5)total = 30 mg/LSuspended Solids(SS)= 30 mg/L
(BOD5)soluble in effluent = 11.1 mg/L
The denitrifying bacteria
(µm)d = 0.4
(Kd) = 0.04(Y)d = 0.9 mg VSS/mg NO3-N Kdn= 0.16 mg NO3-N
Micro-organism Growth Constant
µm = 2.5 Concentration of Biomass(X) =
Kd = 0.05
Y = 0.5
Ks= 100
5.271538462
Minimum Sludge retension time (day) = 2.51025641 day
Hydranlic detension time θ (day ) = 0.050654608
652.2055178
m3/d
d-1
d-1
d-1
d-1
mg VSS/mg BOD5 removed
mg BOD5/L
NH3 Removal (Denitrification)
The Solid retension time θc (day) =
Volume of the tank (m3) =
Biomass production per day (Px) (Kg/d) = 363.6613402
36.36613402
12839.17567
5.518089346
4.4827586Minimum Sludge retension time (day) = 2.7777778 day
Hydranlic detension time θ (day ) = 0.0866667
1119.1258
Food to micro-organism ratio in the reactor (F/M) = 0.3 mg TKN/mg Vss.d
Biomass production per day (Px) (Kg/d) = 374.47669
37.447669
10634.227
2278.7628
2242.4698
101960.1
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
NH3 Removal (Nitrification)
The Solid retension time θc (day) =
Volume of the tank (m3) =
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
Oxygen reqirements (kg O2/d) =
Volume of air to be supplied(m3/d) =
Activated Sludge System Denitrification
TKN0 = 39
TKN = 1X 3000 mg MLVSS/L
Concentration of Biomass(X) = 1500 mg MLVSS/L 1600
4800
Xr = 10000 mg MLVSS/L
12960 10672.94
84
39 39
1260.8
mg/L
mg/L
Q0(m3/d)= Qe(m3/d)=
S0 (mg/L)= Xe neigligable
TKN0(mg/L) = TKN0(mg/L) =
Areation tank(m3) Areation tank(m3) Sed tankSed tank
linked with the process of BOD removal and nitrification seperetly . You can change the value form this sheet.
2287.059S (mg/L)= 11.1 S (mg/L)=
mg TKN/mg Vss.d
Qr(m3/d)= Qw(m3/d)=
12912.9895 12875.54
1
1119.126
Qe(m3/d)= Qe(m3/d)=
TKN0(mg/L) = Sed tankSed tank
Nitrification(m3)Nitrification(m3) Sed tankSed tank
Denitrification(m3)
Denitrification(m3)
linked with the process of BOD removal and nitrification seperetly . You can change the value form this sheet.
NOTE
47.01052 2.278763 37.44811.1
Qr(m3/d)= Qw(m3/d)=
12839.18
652.2055
Qe(m3/d)=
Denitrification(m3)
Denitrification(m3) Sed
tankSed tank
5.518089 36.36613Qr(m3/d)= Qw(m3/d)=
Designed by : Ramy R. Salem
Advisor : Dr. Husam Alnajar OXIDATION DICHES
INPUT DATA
Flow = 20000Influent BOD5 (soluble) = 300 mg/L
(BOD5)total = 33.9 mg/LSuspended Solids(SS)= 30 mg/L
(BOD5)soluble in effluent = 15 mg/L
Micro-organism Growth Constant
µm = 2.5
Kd = 0.03
Y = 0.5
Ks= 30
The Solid retension time θc (day) = 30Hydranlic detension time θ (hours ) = 15
20000Concentration of Biomass(X) = 4750 mg MLVSS/L OK
Food to micro-organism ratio in the reactor (F/M) = 0.063 OK
Biomass production per day (Px) (Kg/d) = 0
0
1904.7619
18095.238
m3/d
d-1
d-1
mg VSS/mg BOD5 removed
mg BOD5/L
S min
Volume of the tank (m3) =
Waste Flow rate Qw (m3/d) =
Effluent Flow rate Qe (m3/d) =
Recycle Flow Qr (m3/d) =
No Sludge Production
Allow Sludge Production
Oxygen reqirements = 5700 kg O2/d
OXIDATION DICHESBOD removal,Nitrification & denitrification
1600
4800
Xr = 10000 mg VSS/L
20000 1904.762
300
20000
18095.24 0
S (mg/L)= 15 S (mg/L)= 15
Xr = 10000
Q0(m3/d)= Qe(m3/d)=
S0 (mg/L)= Xe neigligable
Qr(m3/d)= Qw(m3/d)=
OD Tank(m3)OD Tank(m3)Sed tankSed tank