207469818 Design and Sizing Wwtp

Dr. S

Biological Wastewater Treatment

^_^

Designed By:

Advisor : Dr. Husam Al-Najar Ramy R. Salem

Rights are not reserved

Biological Wastewater Treatment

Designed by : Ramy R. Salem Advisor : Dr. Husam Alnajar

INPUT DATA

12700 m³/d 84 mg/L 30 mg/L 30 mg/L 11.1 mg/L

µm = 2.5 d^-1 Concentration of Biomass(X) =

Kd = 0.05 d^-1

Y = 0.5

Ks= 100 mg BOD5/L

5.0056319 0.9163347 day 5.4626679 OK

2.0408163 S>Smin OK 0.0486438

617.77605

0.57561312 OK mg BOD5 / mg MLVSS .d

461.79183 46.179183 7257.1429 5442.8571

270.08559 kg O2/d Volume of the tank (m³) =

Food to micro-organism ratio in the reactor (F/M) = Biomass production per day (Px) (Kg/d) =

Waste Flow rate Qw (m³/d) = Effluent Flow rate Qe (m³/d) =

Activated Sludge System

mg VSS/mg BOD5 removed

The Solid retension time θ_c (day) = Minimum Sludge retension time (day) =

S/F =

Oxygen reqirements = S _min

BOD5 (soluble) = Flow =

(BOD5)total = Suspended Solids(SS)=

Micro-organism Growth Constant (BOD5)soluble in effluent =

Recycle Flow Qr (m³/d) = Hydranlic detension time θ (day ) =

BOD removal

Concentration of Biomass(X) = 3000 mg MLVSS/L 1600

4800 Xr = 10000 mg VSS/L

Q₀(m³/d)= 12700 Q_e(m³/d)= 7257.143

S₀ (mg/L)= 84 X_e neigligable

Qr(m3/d)= 5442.857 Qw(m3/d)= 46.17918

S (mg/L)= 11.1 S (mg/L)= 11.1

Xr = 10000

Activated Sludge System

Areation tank

_tank ^Sed

Designed By : Ramy R. Salem Advisor : Dr. Husam Alnajar

INPUT DATA

12960 m³/d 84 mg/L 30 mg/L 30 mg/L 11.1 mg/L

(µm)n = 0.25 d^-1

(Kd)n = 0.04 d^-1

(Y)n = 0.2

(Ks)n= 0.4 mg/L

µm = 2.5 d^-1 Concentration of Biomass(X) =

Kd = 0.05 d^-1

Y = 0.5

Ks= 100 mg BOD5/L

10 0.0761905 day

2.1 OK

0.0761905 S>Smin OK 0.0486438

2437.1532

0.16543892 OK mg BOD5 / mg MLVSS .d

Micro-organism Growth Constant

mg VSS/mg BOD5 removed

The Solid retension time θ_c (day) = Minimum Sludge retension time (day) =

S/F = S min

Micro-organism (N) Growth Constant

mg VSS/mg NH4-N removed

Hydranlic detension time θ (day ) = Volume of the tank (m³) =

Food to micro-organism ratio in the reactor (F/M) = (BOD5)soluble in effluent =

Activated Sludge System

Flow = BOD5 (soluble) =

(BOD5)total = Suspended Solids(SS)=

408.42013 110.37077 7765.7506 5194.2494

2764.896 kg O2/d Recycle Flow Qr (m³/d) =

Oxygen reqirements =

Biomass production per day (Px) (Kg/d) = Waste Flow rate Qw (m³/d) = Effluent Flow rate Qe (m³/d) =

BOD Removal & Nitrification

TKN0 = 40 mg/L

TKN = 1 mg/L

Concentration of Biomass(X) = 3000 mg MLVSS/L 1600

4800 Xr = 10000 mg MLVSS/L

Q₀(m³/d)= 12960 Q_e(m³/d)=

S₀ (mg/L)= 84 X_e neigligable

TKN₀(mg/L) = 40 TKN₀(mg/L) =

Activated Sludge System

Areation tank

tank ^Sed

Qr(m3/d)= 5194.249 Qw(m3/d)=

S (mg/L)= 6.382979 S (mg/L)=

Xr =

7765.751

0.509091

110.3708 6.382979 10000

Designed By : Ramy R. Salem Advisor : Dr. Husam Alnajar

INPUT DATA

12960 m³/d 84 mg/L 30 mg/L 30 mg/L 11.1 mg/L

(µm)n = 0.25 d^-1

(Kd)n = 0.04 d^-1

(Y)n = 0.2

(Ks)n= 0.4 mg/L

µm = 2.5 d^-1 Concentration of Biomass(X) =

Kd = 0.05 d^-1

Y = 0.5

Ks= 100 mg BOD5/L

5.0056319 0.9163347 day 5.4626679 OK

2.0408163 S>Smin OK 0.0972876

1260.8469

0.57561312 OK mg VSS/mg BOD5 removed

The Solid retension time θc (day) =

BOD Removal

Activated Sludge System

Flow = BOD5 (soluble) =

(BOD5)total = Suspended Solids(SS)=

(BOD5)soluble in effluent =

Micro-organism (N) Growth Constant

mg VSS/mg NH4-N removed

Micro-organism Growth Constant

Minimum Sludge retension time (day) = S/F =

S _min

Hydranlic detension time θ (day ) = Volume of the tank (m³) =

Food to micro-organism ratio in the reactor (F/M) =

mg BOD5 / mg MLVSS .d 470.10523 47.010523 10739.981 2287.0588

2764.896 kg O2/d

54.054054 4.7619048 day 0.0888889 1147.8213

0.3 0

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) =

Oxygen reqirements =

The Solid retension time θ_c (day) = Biomass production per day (Px) (Kg/d) =

Hydranlic detension time θ (day ) = Volume of the tank (m³) =

Food to micro-organism ratio in the reactor (F/M) = Biomass production per day (Px) (Kg/d) =

Minimum Sludge retension time (day) =

NH

₃

Removal (Nitrification)

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) =

mg TKN/mg Vss.d

BOD Removal & Nitrification (Seperated processes)

TKN0 = 40 mg/L

TKN = 1 mg/L

Concentration of Biomass(X) = 1500 mg MLVSS/L 1600

4800 Xr = 10000 mg MLVSS/L

Q0(m³/d)= 12960 Qe(m³/d)= 10672.94

S₀ (mg/L)= 84 X_e neigligable

TKN₀(mg/L) = 40 TKN₀(mg/L) = 40

1260.8

Activated Sludge System

Areation tank

_tank ^Sed

Qr(m3/d)= 2287.059 Qw(m3/d)=

S (mg/L)= 11.1 S (mg/L)=

mg TKN/mg Vss.d

Q_e(m³/d)= 12912.9895 Q_e(m³/d)= 12909.8 TKN₀(mg/L) = 1

1147.82

Nitrification

_tank ^Sed

47.01052 Qw(m3/d)= 3.185204 11.1

Designed By : Ramy R. Salem Advisor : Dr. Husam Alnajar

INPUT DATA

12960 m³/d 84 mg/L 30 mg/L 30 mg/L 11.1 mg/L

(µm)d = 0.4 d^-1

(Kd) = 0.04 d^-1

(Y)d = 0.9

Kdn= 0.16 mg NO3-N

µm = 2.5 d^-1 Concentration of Biomass(X) =

Kd = 0.05 d^-1

Y = 0.5

Ks= 100 mg BOD5/L

5.271538462 2.51025641 day 0.050654608 652.2055178

363.6613402

mg VSS/mg BOD5 removed (BOD5)soluble in effluent =

Activated Sludge System

Flow = BOD5 (soluble) =

(BOD5)total = Suspended Solids(SS)=

The denitrifying bacteria

mg VSS/mg NO3-N

Micro-organism Growth Constant

Biomass production per day (Px) (Kg/d) =

NH

₃

Removal (Denitrification)

The Solid retension time θ_c (day) =

Minimum Sludge retension time (day) = Hydranlic detension time θ (day ) =

Volume of the tank (m³) =

36.36613402 12839.17567 5.518089346

4.4827586 2.7777778 day 0.0866667 1119.1258

0.3 374.47669

37.447669 10634.227 2278.7628 2242.4698 101960.1 Oxygen reqirements (kg O2/d) =

Volume of air to be supplied(m³/d) = The Solid retension time θc (day) = Minimum Sludge retension time (day) =

Hydranlic detension time θ (day ) = Volume of the tank (m³) =

Food to micro-organism ratio in the reactor (F/M) = Biomass production per day (Px) (Kg/d) =

Waste Flow rate Qw (m³/d) = Effluent Flow rate Qe (m³/d) =

Recycle Flow Qr (m³/d) =

mg TKN/mg Vss.d

NH

₃

Removal (Nitrification)

Waste Flow rate Qw (m³/d) = Effluent Flow rate Qe (m³/d) =

Recycle Flow Qr (m³/d) =

Denitrification

TKN0 = 39 mg/L

TKN = 1 mg/L

X 3000 mg MLVSS/L

Concentration of Biomass(X) = 1500 mg MLVSS/L 1600

4800

Xr = 10000 mg MLVSS/L

Q0(m³/d)= 12960 Qe(m³/d)= 10672.94

S0 (mg/L)= 84 Xe neigligable

TKN0(mg/L) = 39 TKN0(mg/L) = 39

1260.8

Activated Sludge System

Areation tank(m

³

)

_tank ^Sed

linked

nitrification seperetly . You can change the value form this sheet.

Q_r(m3/d)= 2287.059 Q_w(m3/d)=

S (mg/L)= 11.1 S (mg/L)=

mg TKN/mg Vss.d

Qe(m³/d)= 12912.9895 Qe(m³/d)= 12875.54 TKN0(mg/L) = 1

1119.13

Nitrification(m3)

_tank ^Sed

Denitrification

linked with the process of BOD removal and nitrification seperetly . You can change the value form this sheet.

NOTE

47.01052 Q_r(m3/d)= 2.278763 Q_w(m3/d)= 37.448 11.1

Qe(m³/d)= 12839.18

652.2055

Denitrification

(m3)

_tank ^Sed

Q_r(m3/d)= 5.518089 Q_w(m3/d)= 36.36613

Designed by : Ramy R. Salem Advisor : Dr. Husam Alnajar

INPUT DATA

20000 m³/d 300 mg/L 33.9 mg/L 30 mg/L 15 mg/L

µm = 2.5 d^-1

Kd = 0.03 d^-1

Y = 0.5

Ks= 30 mg BOD5/L

20000

4750 mg MLVSS/L 0.063 0

0 1904.7619 18095.238

OXIDATION DICHES

Flow =

Influent BOD5 (soluble) = (BOD5)total = Suspended Solids(SS)=

(BOD5)soluble in effluent =

Effluent Flow rate Qe (m³/d) = Micro-organism Growth Constant

mg VSS/mg BOD5 removed

S min

Recycle Flow Qr (m³/d) =

Hydranlic detension time θ (hours ) = The Solid retension time θc (day) =

Concentration of Biomass(X) = Volume of the tank (m³) =

Food to micro-organism ratio in the reactor (F/M) = Biomass production per day (Px) (Kg/d) =

Waste Flow rate Qw (m³/d) =

No Sludge Production Allow Sludge Production

5700 kg O2/d Oxygen reqirements =

BOD removal,Nitrification & denitrification

1600 4800 Xr = 10000 mg VSS/L

30 15

Q0(m³/d)= 20000 Qe(m³/d)=

S0 (mg/L)= 300 Xe neigligable

20000 OK

OK

Qr(m3/d)= 18095.24 Qw(m3/d)=

S (mg/L)= 15 S (mg/L)=

Xr =

OXIDATION DICHES

OD Tank(m

³

)

Sed tank

1904.762 Xe neigligable

0 15 10000