Desain BAK IPAL

1

Activated Sludge System Planning

Differentiation of SellUser in put Setting value Calculation value

1. Design conditionRow water Quantity 3,000 Water Temperature 28.5 ℃

Operation Time 16 Hr Quantity of Water in Hour 187.5 Water / Raw Material 35 Production Quantity 86 t/day BOD Basic Unit 20.0 kg-BOD/t-Material

Grits + Sand Quantity 9.5 Content 11.0 %Rubber Particle Quantity 1,032 kg Content 1.2 %

BOD 600 ppm 573 ppmMLSS 2,500 ppm

2. Droping Sand TankDiameter of Tremoved Sand 0.05 mmφ

Water Temperature 28.5 ℃ Specific Gravity of Water 0.995 Viscosity of Water 0.838 Centi Poise

Sedimentation Rate of Sand 0.244 cm/sec Gravity of Sand 2.50 Water Area Load 8.8 Safety Factor 1.5

Area of Sand Tank 31.96

Sedimentation Rate of Sand 0.147 m/minSedimentation Factor 3.0

Sedimentation Distance of Sand 0.80 mRetention Time 16.4 min

Sand Tank Volume 51.14 Tank Size

6.00 m (W) * 5.33 m (L) * 1.00 2.00 3.00 Area of Tank 31.96 Volume of Tank Direct Part 31.96 Tank Volume 42.62 Volume of Tank Lower Part 10.65

Grits + Sand AmountGrits + Sand Amount 9.5 Grits + Sand Density 6.0 %Lift Water Quantity 157.7

Operation time 4.0 HrAir Lift Pump 1 Units

Sand Tank Depth 3.0 mInjection of Air Lift Pump 0.6 m (from Bottom)Lift Water of Air Lift Pump 0.66 Injection of Air Lift Pump 2.4 m (Hs)Lift Up of Air Lift Pump 1.5 m (H)

Air of Air Lift Pump 0.926 1 Units 0.93 3. Floatation Tank

Diameter of Tremoved Rubber 0.20 mmφWater Temperature 28.5 ℃ Specific Gravity of Water 0.995

Viscosity of Water 0.838 Centi Poise

m3/daym3/Hr

m3/t

m3/day

g/cm3

g/cm3

m3/m2・Hr

m2

m3

m (D1)* m (D2)m2 m3

m3 m3

m3/day

m3/day

m3/min

m3/min*Units X m3/min

g/cm3

Droping Sand Tank

Flotation Tank

D1

D2

D

2

Floatation Rate of Rubber 0.038 cm/sec Gravity of Rubber 0.98 Water Area Load 1.4 Safety Factor 1.5

Area of Floatation Tank ### Floatation Rate of Rubber 0.023 m/min

Floatation Factor for Stream 5.0 Floatation Distance of Rubber 0.60 m

Retention Time 132.4 minFloatation Tank Volume 413.7

Tank SizeTank Size 14.40 m (W) * 14.36 m (L) * 3.00 m (D) = 620.54 3.00

Rubber ParticleRubber Particle Amount 1,032 kg/dayBulk density of Rubber 0.5 Rubber Particle Volume 2.06 Rubber Particle Density 10.0 %

Lift Water Quantity 20.6 Operation time 4.0 HrLift Water Flow 0.086

Air Lift Pump 4 UnitsFloatation Tank Depth 3.00 m

Injection of Air Lift Pump 0.6 m (from Bottom)Lift Water of Air Lift Pump 0.086 Injection of Air Lift Pump 2.4 m (Hs)Lift Up of Air Lift Pump 1.5 m (H)

Air of Air Lift Pump 0.0303 4 Units 0.121

4. Pump PitPump of Pump Pit

Average Water Flow 187.5 Safety Factor 1.5 Units of Pump 3 Units

Lift Water Quantity 1.56

Pump Type JVC- 100-28 Made in TAIWAN (SAN JAI MACHINERY)Power Comsumption 10.0 Hp 1.6 3 Units

7.5 kw 18.0 mHTotal Power Comsumption 22.5 kw*Hr

Pump PitRetention Time 15.0 min

Pit Volume 46.9 Tank Size 4.00 m (W) * 3.91 m (L) * 3.00 m (D) = 46.9

5. Airation TankBOD Load 1,800 kg/day MLSS 2,500 ppm

Pollution Load 0.40 BOD-kg/MLSS-kg*dayAiration Tank Volume 1,800 Airation Tank Size 4.50 m (W) * 44.44 m (L) * 3.00 m (D) X 3

1.5 * D

Airation Tank Size 4.50 m (W) * 46.00 m (L) * 3.00 m (D) X 3 Airation Tank Volume 1,863

g/cm3

m3/m2・Hr

m2

m3

m3

g/cm3

m3

m3/day

m3/min

m3/min


m3/Hr

m3/min

m3/min

m3

m3

m3

W ＝

m3

3

6. Airation SystemBOD Load 1,800 kg/day

Airation Tank Volum 1,800 MLSS 2,500 ppm

MLSS Weight 4,500 kg Saturated DO at 20℃ 8.84 Water Temperature 28.5 Saturated DO 7.68

Oxygen Concentration of Airation 1.5 ppmDissolved Oxygen Factor 0.70 Oxygen Demand of Decompostion 1kg BOD 0.50

Constant of Activated Sludge for Autodigestion 0.15 Oxygen Demand 1,575 Oxygen Demand of after Revision 2,253

Oxygen Demand in Hour 93.9

6-1) Turbo Jet AiratorAirator Type MT-10

Power Comsumption 7.5 kw 10.0 HpOxygen Supply of Airator 4.88

Units of Airator 19.24 Units 20 UnitsTotal Power Comsumption 150.0 kw

6-2) Submersible Pump Airator Airator Type JAR- 35-100


Units of Airrator 25.8 Units 26 UnitsTotal Power Comsumption 96.2 kw

6-3) Blower + Diffuser

Depth of Diffuser 2.50 m Depth of Diffuser 2.50 mOxygen Transfer 4.8 % (SD-300) Oxygen Transfer 4.1 % (SD-150)Demand of Air 117.6 Demand of Air 137.8

Units of Blower 4 Units Units of Blower 5 UnitsDelivery Air of Blower 29.4 Delivery Air of Blower 27.6

Blower Type RSS- 200 Blower Type RSS- 200Rotate 780 r.p.m Rotate 780 r.p.m

Blower Capacity 30.1 Blower Capacity 30.1 Power Comsumption 30.0 Hp Power Comsumption 30.0 Hp

Total Power Comsumption 90.0 kw Total Power Comsumption 112.5 kw

Delivery Aer of Diffuser 0.30 Delivery Aer of Diffuser 0.15 Units of Diffuser 392 Units Units of Diffuser 919 Units

7. Settling TankRaw water 187.5

MLSS 2,500 mg/LWater Surface Load 19.8 Surface Load in Hour 0.825

Settling Tank 1 UnitsSettling Tank Area 227.4

Retention Time 2.5 Hr Over

m3

oC

O2-kg/BOD-kgO2-kg/MLSS-kg*day

O2-kg/day O2-kg/dayO2-kg/Hr

O2-kg/Hr*Unit

O2-kg/Hr*Unit

［Blower］［Diffuser Type SD-300］［Diffuser Type SD-150］

m3/min m3/min

m3/min*Unit m3/min*Unit


［Diffuser］［Diffuser Type SD-300］［Diffuser Type SD-150］

m3/min*Units m3/min*Units

m3/Hr

m3/m2*day m3/m2*Hr

m2/Units

4

Settling Tank Volum 468.8 Tank Size

Settling Tank Size 16.00 m (W) * 14.21 m (L) * 3.00 m (D)Direct Trunk D = 1.50 341.1 Slope Trunk D = 1.50 m (Ds)

Division of Bottom 6 Length 2 Side 3A : 8.00 B : 4.74 a : 1.00 b : 1.00

Slope Trunk Volum 135.2 Area of Tank 227.4 Tank Volum 476.3 > 468.8

0.50.5

Structure of the Settling Tank (Imagination Figure)

Overflow WeirAmount for Overflow Weir 1m 8

Overflow Weir Length 23.4 m

8. Return SludgeReturn Sludge MLSS 8,000 ppm

MLSS 2,500 ppmReturn Sludge Amount 85.2

Safety Factor 1.5 Lift Water of Pump 127.8 2.13

Return Sludge Vertical PumpPump Capacity 0.36 6 Units



Return Sludge Air Lift PumpOperation time 24.0 Hr

Units of Air Lift Pump 6 UnitsLift Water of Air Lift Pump 0.36 Injection of Air Lift Pump 0.6 m (from Bottom)Injection of Air Lift Pump 2.4 m (Hs)Lift Up of Air Lift Pump 2.0 m (H)

Air of Air Lift Pump One Unit 0.75 Total Air of Air Lift Pump 4.52

9. Produced SludgeRow water Quantity 3,000

BOD 600 ppmAiration Tank Volum 1,800

MLSS 2,500 ppmConversion Rate from BOD to Sludge 0.55

m3/Unit

m (Dd) Direct Ｔrunk Volum

Ds :m3

m2

m3 m3 (Design Calculation Value)

Ratio of Dd and Ds

Dd ：Ds ：

m3/m*H

m3/Hr

m3/Hr m3/min

m3/min

m3/min

m3/min *Unit

m3/min*Unitm3/min

m3/day

m3

a ：

Dd

DsA

B

a b

5

0.07Amount of Produced Sludge 675 kg/day

Return Sludge MLSS 8,000 ppmAmount of Excess Sludge 84

10. Blower Capacity of Air Lift PumpAir Lift Pump of Sand Tank 0.93

Air Lift Pump of Flotation Tank 0.12 Air Lift Pump of Return Sludge 4.52

Total Air 5.56

Injection of Air Lift Pump 2.4 m (Hs-Max)Blower Capacity of Air 5.56 1 Unit

Blower Type RSS- 80 6.55 Power Comsumption 7.5 Hp Rotate 1300 r.p.m

11. Electrical Comsumption Total Electrical Comsumption of Equipment (kw)

Turbo Jet Submersible Blower + DiffuserBlower + DiffuserAirator Pump Airator (SD-300) (SD-150)

Power Comsumption 150.0 96.2 90.0 112.5

of Aeration System Pump Pit Pump 22.5 22.5 22.5 22.5

Blower of Air Lift Pump 7.5 7.5 7.5 7.5 Total Comsumption 180.0 126.2 120.0 142.5

Return Sludge Vertical Pump ( 30.0 ) ( 30.0 ) ( 30.0 ) ( 30.0 ) Used for Vertical Pump

( 210.0 ) ( 156.2 ) ( 150.0 ) ( 172.5 ) (Return Sludge)

Rate of Autodigestion （day-1） b ：

m3/day

m3/minm3/minm3/minm3/min

m3/min*Unitm3/min*Unit

6

kg-BOD/t-Material

Centi Poise

Centi Poise

m (D)

7

Units

Units

m (D)

8

mg/Lmg/L

% (SD-150)

O2-kg/dayO2-kg/Hr

［Diffuser Type SD-150］

m3/min*Unit

m3/min*Unit

［Diffuser Type SD-150］m3/min*Units

m3/m2*Hr

9

1.50

m3

m3 (Design Calculation Value)

Menghitung Debit Air Limbah per Hari dgn menggunakan V-Notch

Debit air yg mengalir pada salurankeluar = Debit air treatment x 1.5 (Return Sludge 50%)

Debit air = 4500 m3 / hariWaktu operasi pabrik = 24 jam

Debit air keluar = (4500 / 24) x 1.5281.25 m3 / jam

Ukuran V Notch

Lebar saluran keluar = 12 mJumlah V Notch = (Lebar saluran keluar / lebar V Notch) - 1

= ( 1200 / 40 ) - 1 = 30 - 1 = 29 bh

Debit Air 1 V Notch = Debit air keluar / Jumlah V Notch= 281.25 / 29 = 9.70 m3 / jam

Debit Air Limbah per Hari = Debit 1 V Notch x Jumlah V Notch x Waktu Operasi= 9.70 m3 x 29 bh x 24 jam= 6.751.20 m3 / hari

5 h

5 h

2 h

3 h

4 hh/2 h/2

h

40

40

1525

305 5

8

Debit 1 V Notch x Jumlah V Notch x Waktu Operasi

5 h

5 h

2 h

3 h

4 hh/2 h/2

h

40

40

1525

305 5

8






BOD 533 ppm 533 ppmMLSS 2,500 ppm 16 Standart BOD

9.6 Asumsi BOD Loss 40%











Sand Tank Depth 3.7 mInjection of Air Lift Pump 0.6 m (from Bottom)

m3/daym3/Hr

m3/t

m3/day

g/cm3

g/cm3

m3/m2・Hr

m2

m3

m (D1)* m (D2)m2 m3

m3 m3

m3/day

m3/day

Droping Sand Tank

Flotation Tank

D1

D2

D

Lift Water of Air Lift Pump 1.15 Injection of Air Lift Pump 3.1 m (Hs)Lift Up of Air Lift Pump 1.5 m (H)


3. Floatation TankDiameter of Tremoved Rubber 0.20 mmφ














m3/min


g/cm3

g/cm3

m3/m2・Hr

m2

m3

m3

g/cm3

m3

m3/day

m3/min

m3/min


m3/Hr







Pollution Load 0.40 BOD-kg/MLSS-kg*dayAiration Tank Volume 2,399 Airation Tank Size 5.55 m (W) * ### m (L) * 3.70 m (D) X 1

1.5 * D

Actual Airation Tank Size 6.00 m (W) * 6.00 m (L) * 3.70 m (D) X 18.01 Airation Tank Volume 2,399

175. 1. De-Nitrification Tank

Min. 2 hour Water Volume 375.0 Airation Tank Size 6.00 m (W) * 16.9 m (L) * 3.70 m (D) X 1

Actual Airation Tank Size 6.00 m (W) * 6.00 m (L) * 3.70 m (D) X 2.82 Airation Tank Volume 375

3






m3/min

m3/min

m3

m3

m3

W ＝

m3

m3

m3

oC


O2-kg/day O2-kg/day

















Settling Tank 1 Units

O2-kg/Hr

O2-kg/Hr*Unit

O2-kg/Hr*Unit


m3/min m3/min





m3/Hr

m3/m2*day m3/m2*Hr

Settling Tank Area 227.4 Retention Time 2.5 Hr Over


Settling Tank Size 24.00 m (W) * 9.47 m (L) * 3.50 m (D)Actual Settling Tank Size 24.00 18.00 3.50

Direct Trunk D = 1.75 397.9 Slope Trunk D = 1.75 m (Ds)



0.50.5











m2/Units

m3/Unit


Ds :m3

m2


Ratio of Dd and Ds

Dd ：Ds ：

m3/m*H

m3/Hr

m3/Hr m3/min

m3/min

m3/min

Dd

DsA

B

a b










Total Air 5.56







m3/min *Unit

m3/min*Unitm3/min

m3/day

m3

a ： Rate of Autodigestion （day-1） b ：

m3/day





( 256.5 ) ( 183.6 ) ( 181.5 ) ( 174.0 ) (Return Sludge)

kg-BOD/t-Material

Centi Poise

m (D)

Centi Poise

Vertical Pump Performance Data SELECT 9(SAN JAI WET PIT PUMP, JVC Type)Pump Capacity Total Power Model Min Max Head Hp40-25 0.11 0.20 18.0 2.0

m (D)

50-25 0.20 0.35 18.0 3.0 80-25 0.35 0.62 18.0 5.0 80-28 0.62 0.92 18.0 7.5 100-28 0.92 1.2 18.0 7.5 100-28 1.2 1.6 18.0 10125-28 1.6 1.7 18.0 10150-28 1.7 2.3 18.0 15150-28 2.3 3.2 18.0 20200-28 3.2 4.5 18.0 25

Non Model 4.5

Units

Units

Units

Units

Units

Units

mg/Lmg/L

Water depth 1.0 1.5 2.0 2.5 3.0 3.5 HPJAR-37-100 3.9 4.5 4.9 5.3 5.7 6.0 7.5 y = 1.67 * Ln(D) + 3.84JAR-35-100 2.8 3.0 3.4 3.7 3.8 4.0 5.0 y = 1.00 * Ln(D) + 2.72JAR-33-80 1.5 1.5 1.6 1.7 1.9 2.1 3.0

Oxygen Supply Quantity (O2-kg/Hr)

2-kg/day y = 1.24 * e0.1401 * D

JAR-32-80 1.0 1.0 1.0 1.1 1.2 1.4 2.0 JAR-31-50 0.5 0.5 0.5 0.6 0.7 0.8 1.0

Airation Tank Depth 3.70 mOxygen Supply Quantity

kwJAR- 37-100 5.78 5.50

JAR- 35-100 3.88 3.70

JAR- 33-80 1.94 2.20

JAR- 32-80 1.26 1.50

JAR- 31-50 0.71 0.75

SELECT 2 3.88 3.70

Roots Blower Performance Data (HEY-WEL Roots Blower, RSS Type)Depth of Diffuser 3.20 m

Type 950 1150 1350 1550 1750 1950 r.p.m HP of Blower Select Data Base40 0.60 0.95 1.26 1.56 1.94 2.24 Calculation of HP50 1.04 1.60 2.12 2.66 3.17 - HPc = a * Q + b

% (SD-150) 65 1.99 2.72 3.42 4.09 4.79 5.46 a : 900 1100 1300 1500 1650 1850 r.p.m b :

5 80 2.87 4.25 5.25 6.35 7.43 8.51 700 900 1100 1300 1550 1750 r.p.m

100 - 4.94 6.77 8.38 10.53 12.23 Q : 125 A - 7.13 9.72 12.01 15.01 17.33 HPc : 125 - 11.3 15.1 18.4 22.7 27.3 SELECT150 10.5 15.2 19.6 24.6 29.6 34.0 HP :

700 830 990 1100 1250 1390 r.p.m200 A 19.2 23.9 29.7 34.0 39.0 43.8

620 700 780 880 990 1110 1250 1390 r.p.m200 20.6 25.4 29.3 32.8 38.0 43.5 50.0 56.3

700 250 29.4 34.2 39.4 45.0 51.8 59.4 68.6 76.3 600 700 800 900 1000 1100 1200 1300 r.p.m

300 63.6 77.9 91.7 105.1 118.0 131.4 145.2 158.6

MLSS and Surface LoadSurface Load

MLSS Sewerage This

2-kg/Hr y = 0.8216 * e0.1328 * D

y = 0.374 * e0.2024 * D

(O2-kg/Hr)

Delivery Air Quantity (m3/min)

Diffuser Type SD-150］

3/min*Unit

3/min*Unit

Diffuser Type SD-150］3/min*Units

3/m2*Hr

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

f(x) = 0.373918921772693 exp( 0.202386080736358 x )R² = 0.87669470086326

f(x) = 0.821575768795176 exp( 0.132836344759557 x )f(x) = 1.24269472161065 exp( 0.140122979378011 x )R² = 0.933629552205305

f(x) = 1.00191980521949 ln(x) + 2.72088988641117R² = 0.975402590392056

f(x) = 1.66725207091248 ln(x) + 3.83671891655249R² = 0.992285590184941

Depth and Oxgen Supply

Water Depth (m)

Oxyg

en S

uppl

y (O

2-kg

/Hr)

System System Calculation Methofd of This System mg/L m/day m/day2500 39.0 19.8 SL = -12.67*Ln(MLSS) + 118.923000 32.2 17.5 3500 26.4 15.5 Surface Load

4000 21.5 13.8 -12.674500 17.1 12.3 118.925000 13.2 11.0

1.75 Calculation Methofd of Trapezoids Volume

Pump Select 1

SL ： m3 Factor a ：

Factor b ：

(Design Calculation Value)

V = h * {A*B + a*b + (A*B*a*b)0.5}/3

AB

ba

h

Blower Capacity of Air Lift Pump

Total AirSelect Type Capacity Power RotateNo No Hp r.p.m

Air Lift Pump 5.6 13 80 6.4 7.5 1300

Calculation of HPHPc = a * Q + b Q : 6.4

a : ### HPc : 6.51 b : ### SELECT 5

HP : 7.5

m3/min m3/min

y = 1.67 * Ln(D) + 3.84y = 1.00 * Ln(D) + 2.72

y = 1.24 * e0.1401 * D

Select NoSD-300 30.8 28 SD-150 24.0 24

Blower Select Data BaseQquantity Type r.p.m

SD-300 32.8 200 880SD-150 24.6 150 1300

HP of Blower Select Data BaseCalculation of HP HP Qquantity Blower RotateHPc = a * Q + b 1 Type r.p.m

### 2 0.95 40 1,150 ### 3 1.26 40 1,350

5 1.56 40 1,550 SD-300 SD-150 7.5 1.60 50 1,150 32.8 24.6 10 2.12 50 1,350 30.80 23.28 15 2.66 50 1,550 11 9 20 2.72 65 1,150 40 25 25 3.42 65 1,350

30 4.09 65 1,550 40 4.25 80 900 50 4.94 100 900 60 5.25 80 1,100 75 6.35 80 1,300 100 6.77 100 1,100 125 7.13 125 A 900 150 8.38 100 1,300 200 9.72 125 A 1,100 250 11.33 125 900 300 12.01 125 A 1,300

y = 0.8216 * e0.1328 * D

y = 0.374 * e0.2024 * D

m3/min

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

f(x) = 0.373918921772693 exp( 0.202386080736358 x )R² = 0.87669470086326

f(x) = 0.821575768795176 exp( 0.132836344759557 x )f(x) = 1.24269472161065 exp( 0.140122979378011 x )R² = 0.933629552205305

f(x) = 1.00191980521949 ln(x) + 2.72088988641117R² = 0.975402590392056

f(x) = 1.66725207091248 ln(x) + 3.83671891655249R² = 0.992285590184941


Water Depth (m)

Oxyg

en S

uppl

y (O

2-kg

/Hr)

JAR-37-100

JAR-35-100

JAR-32-80

JAR-33-100

JAR-31-50

15.06 125 1,100 15.21 150 900 18.44 125 1,300 19.64 150 1,100 24.60 150 1,300

25.35 200 700 29.27 200 780 32.79 200 880 34.23 250 700 37.97 200 990 39.40 250 780 43.48 200 1,110 45.04 250 880 51.84 250 990 59.40 250 1,110 68.56 250 1,250 76.25 250 1,390 77.86 300 700 91.69 300 800

### 300 900 ### 300 1,000 ### 300 1,100 ### 300 1,200 ### 300 1,300






BOD 320 ppm 320 ppmMLSS 2,500 ppm 16 Standart BOD

9.6 Asumsi BOD Loss 40%











Sand Tank Depth 3.7 mInjection of Air Lift Pump 0.6 m (from Bottom)

m3/daym3/Hr

m3/t

m3/day

g/cm3

g/cm3

m3/m2・Hr

m2

m3

m (D1)* m (D2)m2 m3

m3 m3

m3/day

m3/day

Droping Sand Tank

Flotation Tank

D1

D2

D

Lift Water of Air Lift Pump 1.15 Injection of Air Lift Pump 3.1 m (Hs)Lift Up of Air Lift Pump 1.5 m (H)


3. Floatation TankDiameter of Tremoved Rubber 0.20 mmφ














m3/min


g/cm3

g/cm3

m3/m2・Hr

m2

m3

m3

g/cm3

m3

m3/day

m3/min

m3/min


m3/Hr







Pollution Load 0.40 BOD-kg/MLSS-kg*dayAiration Tank Volume 1,440 Airation Tank Size 5.55 m (W) * 70.12 m (L) * 3.70 m (D) X 1

1.5 * D

Actual Airation Tank Size 6.00 m (W) * 6.00 m (L) * 3.70 m (D) X 10.81 Airation Tank Volume 1,440

175. 1. De-Nitrification Tank

Min. 2 hour Water Volume 375.0 Airation Tank Size 6.00 m (W) * 16.9 m (L) * 3.70 m (D) X 1

Actual Airation Tank Size 6.00 m (W) * 6.00 m (L) * 3.70 m (D) X 2.82 Airation Tank Volume 375

3






m3/min

m3/min

m3

m3

m3

W ＝

m3

m3

m3

oC


O2-kg/day O2-kg/day

















Settling Tank 1 Units

O2-kg/Hr

O2-kg/Hr*Unit

O2-kg/Hr*Unit


m3/min m3/min





m3/Hr

m3/m2*day m3/m2*Hr

Settling Tank Area 227.4 Retention Time 2.5 Hr Over


Settling Tank Size 24.00 m (W) * 9.47 m (L) * 3.50 m (D)Actual Settling Tank Size 24.00 18.00 3.50

Direct Trunk D = 1.75 397.9 Slope Trunk D = 1.75 m (Ds)



0.50.5











m2/Units

m3/Unit


Ds :m3

m2


Ratio of Dd and Ds

Dd ：Ds ：

m3/m*H

m3/Hr

m3/Hr m3/min

m3/min

m3/min

Dd

DsA

B

a b










Total Air 5.56







m3/min *Unit

m3/min*Unitm3/min

m3/day

m3

a ： Rate of Autodigestion （day-1） b ：

m3/day





( 181.5 ) ( 135.5 ) ( 121.5 ) ( 136.5 ) (Return Sludge)

kg-BOD/t-Material

Centi Poise

m (D)

Centi Poise

Vertical Pump Performance Data SELECT 9(SAN JAI WET PIT PUMP, JVC Type)Pump Capacity Total Power Model Min Max Head Hp40-25 0.11 0.20 18.0 2.0

m (D)

50-25 0.20 0.35 18.0 3.0 80-25 0.35 0.62 18.0 5.0 80-28 0.62 0.92 18.0 7.5 100-28 0.92 1.2 18.0 7.5 100-28 1.2 1.6 18.0 10125-28 1.6 1.7 18.0 10150-28 1.7 2.3 18.0 15150-28 2.3 3.2 18.0 20200-28 3.2 4.5 18.0 25

Non Model 4.5

Units

Units

Units

Units

Units

Units

mg/Lmg/L

Water depth 1.0 1.5 2.0 2.5 3.0 3.5 HPJAR-37-100 3.9 4.5 4.9 5.3 5.7 6.0 7.5 y = 1.67 * Ln(D) + 3.84JAR-35-100 2.8 3.0 3.4 3.7 3.8 4.0 5.0 y = 1.00 * Ln(D) + 2.72JAR-33-80 1.5 1.5 1.6 1.7 1.9 2.1 3.0

Oxygen Supply Quantity (O2-kg/Hr)

2-kg/day y = 1.24 * e0.1401 * D

JAR-32-80 1.0 1.0 1.0 1.1 1.2 1.4 2.0 JAR-31-50 0.5 0.5 0.5 0.6 0.7 0.8 1.0

Airation Tank Depth 3.70 mOxygen Supply Quantity

kwJAR- 37-100 5.78 5.50

JAR- 35-100 3.88 3.70

JAR- 33-80 1.94 2.20

JAR- 32-80 1.26 1.50

JAR- 31-50 0.71 0.75

SELECT 2 3.88 3.70

Roots Blower Performance Data (HEY-WEL Roots Blower, RSS Type)Depth of Diffuser 3.20 m

Type 950 1150 1350 1550 1750 1950 r.p.m HP of Blower Select Data Base40 0.60 0.95 1.26 1.56 1.94 2.24 Calculation of HP50 1.04 1.60 2.12 2.66 3.17 - HPc = a * Q + b

% (SD-150) 65 1.99 2.72 3.42 4.09 4.79 5.46 a : 900 1100 1300 1500 1650 1850 r.p.m b :

5 80 2.87 4.25 5.25 6.35 7.43 8.51 700 900 1100 1300 1550 1750 r.p.m

100 - 4.94 6.77 8.38 10.53 12.23 Q : 125 A - 7.13 9.72 12.01 15.01 17.33 HPc : 125 - 11.3 15.1 18.4 22.7 27.3 SELECT150 10.5 15.2 19.6 24.6 29.6 34.0 HP :

700 830 990 1100 1250 1390 r.p.m200 A 19.2 23.9 29.7 34.0 39.0 43.8

620 700 780 880 990 1110 1250 1390 r.p.m200 20.6 25.4 29.3 32.8 38.0 43.5 50.0 56.3

700 250 29.4 34.2 39.4 45.0 51.8 59.4 68.6 76.3 600 700 800 900 1000 1100 1200 1300 r.p.m

300 63.6 77.9 91.7 105.1 118.0 131.4 145.2 158.6

MLSS and Surface LoadSurface Load

MLSS Sewerage This

2-kg/Hr y = 0.8216 * e0.1328 * D

y = 0.374 * e0.2024 * D

(O2-kg/Hr)

Delivery Air Quantity (m3/min)

Diffuser Type SD-150］

3/min*Unit

3/min*Unit

Diffuser Type SD-150］3/min*Units

3/m2*Hr

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

f(x) = 0.373918921772693 exp( 0.202386080736358 x )R² = 0.87669470086326

f(x) = 0.821575768795176 exp( 0.132836344759557 x )f(x) = 1.24269472161065 exp( 0.140122979378011 x )R² = 0.933629552205305

f(x) = 1.00191980521949 ln(x) + 2.72088988641117R² = 0.975402590392056

f(x) = 1.66725207091248 ln(x) + 3.83671891655249R² = 0.992285590184941


Water Depth (m)

Oxyg

en S

uppl

y (O

2-kg

/Hr)

System System Calculation Methofd of This System mg/L m/day m/day2500 39.0 19.8 SL = -12.67*Ln(MLSS) + 118.923000 32.2 17.5 3500 26.4 15.5 Surface Load

4000 21.5 13.8 -12.674500 17.1 12.3 118.925000 13.2 11.0

1.75 Calculation Methofd of Trapezoids Volume

Pump Select 1

SL ： m3 Factor a ：

Factor b ：

(Design Calculation Value)

V = h * {A*B + a*b + (A*B*a*b)0.5}/3

AB

ba

h

Blower Capacity of Air Lift Pump

Total AirSelect Type Capacity Power RotateNo No Hp r.p.m

Air Lift Pump 5.6 13 80 6.4 7.5 1300

Calculation of HPHPc = a * Q + b Q : 6.4

a : ### HPc : 6.51 b : ### SELECT 5

HP : 7.5

m3/min m3/min

y = 1.67 * Ln(D) + 3.84y = 1.00 * Ln(D) + 2.72

y = 1.24 * e0.1401 * D

Select NoSD-300 18.5 23 SD-150 21.6 24

Blower Select Data BaseQquantity Type r.p.m

SD-300 19.6 150 1100SD-150 24.6 150 1300

HP of Blower Select Data BaseCalculation of HP HP Qquantity Blower RotateHPc = a * Q + b 1 Type r.p.m

### 2 0.95 40 1,150 ### 3 1.26 40 1,350

5 1.56 40 1,550 SD-300 SD-150 7.5 1.60 50 1,150 19.6 24.6 10 2.12 50 1,350 18.72 23.28 15 2.66 50 1,550 8 9 20 2.72 65 1,150 20 25 25 3.42 65 1,350

30 4.09 65 1,550 40 4.25 80 900 50 4.94 100 900 60 5.25 80 1,100 75 6.35 80 1,300 100 6.77 100 1,100 125 7.13 125 A 900 150 8.38 100 1,300 200 9.72 125 A 1,100 250 11.33 125 900 300 12.01 125 A 1,300

y = 0.8216 * e0.1328 * D

y = 0.374 * e0.2024 * D

m3/min

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

f(x) = 0.373918921772693 exp( 0.202386080736358 x )R² = 0.87669470086326

f(x) = 0.821575768795176 exp( 0.132836344759557 x )f(x) = 1.24269472161065 exp( 0.140122979378011 x )R² = 0.933629552205305

f(x) = 1.00191980521949 ln(x) + 2.72088988641117R² = 0.975402590392056

f(x) = 1.66725207091248 ln(x) + 3.83671891655249R² = 0.992285590184941


Water Depth (m)

Oxyg

en S

uppl

y (O

2-kg

/Hr)

JAR-37-100

JAR-35-100

JAR-32-80

JAR-33-100

JAR-31-50

15.06 125 1,100 15.21 150 900 18.44 125 1,300 19.64 150 1,100 24.60 150 1,300

25.35 200 700 29.27 200 780 32.79 200 880 34.23 250 700 37.97 200 990 39.40 250 780 43.48 200 1,110 45.04 250 880 51.84 250 990 59.40 250 1,110 68.56 250 1,250 76.25 250 1,390 77.86 300 700 91.69 300 800

### 300 900 ### 300 1,000 ### 300 1,100 ### 300 1,200 ### 300 1,300

Activated Sludge Equipment

3,000 Control Valve Header Pipe

( BOD 600 ppm) Non-Return Valve Blower for Air Lift, Return Sludge

( Inlet Time 16 Hr )RSS- 80 6.5517082

1 Unit 7.50 Hp

Airation Blower 4 Units

Measuring Tank RSS- 200 30.1

(Triangular Notch) Return Sludge 30 Hp

Flow Rate 4.69 WaterFlow Rate ###

Air

Grit Removal Screen

102 Outlet

Container

Water Level Controller Hydroextractor

Produced Sludge

Air Diffusion Air Diffusion 675 kg/day84

Airation Tank 1,800 Depth 3.0 m Settling Tank 1 Units

MLSS 2,500 ppm Width 4.5 m Tank Area 227.40

Punmp Pit 46.9 Pollution Load 0.40 Length 44.4 m

3 Units Depth 3.00 m

Width 16.00 m

Length 14.21 m

( Raw Water m3/day)

m3/min*Unit

m3/min*Unit

m3/minm3/min

Screen Residues

Air Lift Pump

m3/day

m3

m2/Unit

m3 BOD-kg/MLSS-kg・day

B

P

B B

LCA

103

[ Grits + Sand Air Lift Pump ]

Va = 0.054H

Air separater Hs + 10Air vent 10

σ= Hs

Water Hs + Hair

Va ;σ ;

pumping head (m)Hs ; submerged deep (m)

Q ;V ;

[ Input Vaiue ]H = 1.5 m Hs = 2.4 m

0.66 N = 1 Units0.657

0.80 m/sec 0.60 m/sec[ Calculated Result ]

σ= 0.615 Va = 1.409 V = 0.926

132.0 mmφ 5.3 inch25 mmφ 1.0 inch

152.5 mmφ 6.1 inch528 mmφ

L = 1056 mm

[ Rubber Particle Air Lift Pump ]

Va = 0.054H


σ= Hs

Water Hs + H

σlog10

air demand for lift water of 1m3 (m3)submerged deep ratio of air pipe (about 75％)

Ｈ ;pumping of water (m3/min)air demand for lift water (m3/min)

QT = m3/minQ1 = m3/min*Unut

D1: VW = D3: VW =

m3/m3

m3/min*UnitsD1 =D2 =D3 =D4 =

σlog10

pumping head H

Hs

D1

D2

D3

D4, L

pumping head

D3

D4, L

submergeddeep

104

airVa ;σ ;


Q ;V ;


0.09 N = 4 Units0.022


σ= 0.615 Va = 1.409 V = 0.030



L = 191 mm

[ Retern Sludge Air Lift Pump ]

Va = 0.054H


σ= Hs

Water Hs + Hair

Va ;σ ;


Q ;


Ｈ ;pumping of water (m3/min)air demand for lift water (m3/min)


D1: VW = D3: VW =

m3/m3

m3/min*UnitsD1 =D2 =D3 =D4 =

σlog10


Ｈ ;pumping of water (m3/min)

pumping head H

HsD1

D2

pumping head H

D2

D3

D4, L

submergeddeep

submergeddeep

105

V ;


2.13 N = 6 Units0.36


σ= 0.545 Va = 2.119 V = 0.753



L = 695 mm

air demand for lift water (m3/min)


D1: VW = D3: VW =

m3/m3

m3/min*UnutD1 =D2 =D3 =D4 =

Hs

D1

D2

90

No.1 In put sell

Flow calculation formulaＱ：ｈ： Water head of V notch (m)Ｋ： Flow coefficient

Calculation formula of flow coefficient K

Ｂ＝ 0.80m (0.5-1.2m Application range) Ｄ＝ 0.30mｈ＝ Application range 0.07-0.26mｈＱＫｈＱＫｈＱ

0.150 43.44 0.7240 83.09 0.201 90.4 1.507 83.18 0.252 160.1 2.668 0.151 44.17 0.7361 83.08 0.202 91.5 1.526 83.19 0.253 161.7 2.695 0.152 44.90 0.7484 83.08 0.203 92.7 1.545 83.19 0.254 163.3 2.722 0.153 45.64 0.7607 83.08 0.204 93.8 1.564 83.20 0.255 165.0 2.749 0.154 46.39 0.7732 83.08 0.205 95.0 1.583 83.21 0.256 166.6 2.777 0.155 47.15 0.7858 83.07 0.206 96.2 1.603 83.22 0.257 168.3 2.804 0.156 47.91 0.7985 83.07 0.207 97.3 1.622 83.22 0.258 169.9 2.832 0.157 48.68 0.8113 83.07 0.208 98.5 1.642 83.23 0.259 171.6 2.860 0.158 49.46 0.8243 83.07 0.209 99.7 1.662 83.24 0.260 173.3 2.888 0.159 50.24 0.837 83.07 0.210 100.9 1.682 83.24 0.261 175.0 2.917 0.160 51.04 0.851 83.07 0.211 102.2 1.703 83.25 0.262 176.7 2.945 0.161 51.84 0.864 83.07 0.212 103.4 1.723 83.26 0.263 178.4 2.974 0.162 52.65 0.877 83.07 0.213 104.6 1.744 83.27 0.264 180.2 3.003 0.163 53.46 0.891 83.06 0.214 105.9 1.764 83.28 0.265 181.9 3.032 0.164 54.28 0.905 83.06 0.215 107.1 1.785 83.28 0.266 183.7 3.061 0.165 55.12 0.919 83.06 0.216 108.4 1.806 83.29 0.267 185.4 3.091 0.166 55.95 0.933 83.06 0.217 109.6 1.827 83.30 0.268 187.2 3.120 0.167 56.8 0.947 83.06 0.218 110.9 1.849 83.31 0.269 189.0 3.150 0.168 57.7 0.961 83.07 0.219 112.2 1.870 83.32 0.270 190.8 3.180 0.169 58.5 0.975 83.07 0.220 113.5 1.892 83.33 0.271 192.6 3.210 0.170 59.4 0.990 83.07 0.221 114.8 1.913 83.34 0.272 194.4 3.240 0.171 60.3 1.004 83.07 0.222 116.1 1.935 83.35 0.273 196.2 3.271 0.172 61.2 1.019 83.07 0.223 117.4 1.957 83.36 0.274 198.1 3.301 0.173 62.0 1.034 83.07 0.224 118.8 1.980 83.37 0.275 199.9 3.332 0.174 62.9 1.049 83.07 0.225 120.1 2.002 83.38 0.276 201.8 3.363 0.175 63.9 1.064 83.07 0.226 121.5 2.025 83.39 0.277 203.7 3.394 0.176 64.8 1.080 83.08 0.227 122.8 2.047 83.40 0.278 205.6 3.426 0.177 65.7 1.095 83.08 0.228 124.2 2.070 83.41 0.279 207.4 3.457 0.178 66.6 1.111 83.08 0.229 125.6 2.093 83.42 0.280 209.4 3.489 0.179 67.6 1.126 83.08 0.230 127.0 2.117 83.43 0.281 211.3 3.521 0.180 68.5 1.142 83.09 0.231 128.4 2.140 83.44 0.282 213.2 3.553 0.181 69.5 1.158 83.09 0.232 129.8 2.163 83.45 0.283 215.1 3.586 0.182 70.5 1.174 83.09 0.233 131.2 2.187 83.46 0.284 217.1 3.618 0.183 71.4 1.190 83.09 0.234 132.7 2.211 83.47 0.285 219.0 3.651 0.184 72.4 1.207 83.10 0.235 134.1 2.235 83.48 0.286 221.0 3.684 0.185 73.4 1.223 83.10 0.236 135.5 2.259 83.49 0.287 223.0 3.717 0.186 74.4 1.240 83.11 0.237 137.0 2.283 83.50 0.288 225.0 3.750 0.187 75.4 1.257 83.11 0.238 138.5 2.308 83.51 0.289 227.0 3.783 0.188 76.4 1.274 83.11 0.239 139.9 2.332 83.52 0.290 229.0 3.817 0.189 77.4 1.291 83.12 0.240 141.4 2.357 83.54 0.291 231.0 3.851 0.190 78.5 1.308 83.12 0.241 142.9 2.382 83.55 0.292 233.1 3.885 0.191 79.5 1.325 83.13 0.242 144.4 2.407 83.56 0.293 235.1 3.919 0.192 80.6 1.343 83.13 0.243 146.0 2.433 83.57 0.294 237.2 3.953 0.193 81.6 1.360 83.14 0.244 147.5 2.458 83.58 0.295 239.3 3.988 0.194 82.7 1.378 83.14 0.245 149.0 2.484 83.60 0.296 241.4 4.023 0.195 83.8 1.396 83.15 0.246 150.6 2.510 83.61 0.297 243.5 4.058 0.196 84.9 1.414 83.15 0.247 152.1 2.535 83.62 0.298 245.6 4.093 0.197 85.9 1.432 83.16 0.248 153.7 2.562 83.63 0.299 247.7 4.128

Flow and water heads of 90o triangular notch

of 90o triangular notch Flow of V notch (m3/min) Ｑ＝Ｋｈ5/2

Ｋ＝81.2＋0.24/h＋（8.4＋12/Ｄ1/2）（ｈ/Ｂ－0.09）2

（0.1-0.75m Application range）Ｑ' Ｑ' Ｑ'

（m）（m3/hr）（m3/min）（m）（m3/hr）（m3/min）（m）（m3/hr）（m3/min）

D

B

h

θ

91

0.198 87.0 1.451 83.16 0.249 155.3 2.588 83.65 0.300 249.8 4.164 0.199 88.2 1.469 83.17 0.250 156.9 2.614 83.66 0.301 252.0 4.199 0.200 89.3 1.488 83.18 0.251 158.5 2.641 83.67 0.302 254.1 4.235 0.201 90.4 1.507 83.18 0.252 160.1 2.668 83.69 0.303 256.3 4.271

92

No.2 In put sell

Flow calculation formulaＱ：ｈ： Water head of V notch (m)Ｋ： Flow coefficient


Ｂ＝ 0.60m (0.44-0.7m Application range) Ｄ＝ 0.10mｈ＝ Application range 0.04-0.12mＫｈＱＫｈＱＫｈ

83.69 0.200 51.73 0.8622 48.20 0.251 91.3 1.521 48.20 0.302 145.0 83.70 0.201 52.38 0.8731 48.20 0.252 92.2 1.537 48.20 0.303 146.2 83.71 0.202 53.04 0.8840 48.20 0.253 93.1 1.552 48.20 0.304 147.4 83.73 0.203 53.70 0.8949 48.20 0.254 94.0 1.567 48.20 0.305 148.6 83.74 0.204 54.36 0.9060 48.20 0.255 95.0 1.583 48.20 0.306 149.8 83.75 0.205 55.03 0.9171 48.20 0.256 95.9 1.598 48.20 0.307 151.0 83.77 0.206 55.70 0.9284 48.20 0.257 96.8 1.614 48.20 0.308 152.3 83.78 0.207 56.38 0.9397 48.20 0.258 97.8 1.630 48.20 0.309 153.5 83.80 0.208 57.06 0.9511 48.20 0.259 98.7 1.646 48.20 0.310 154.7 83.81 0.209 57.75 0.963 48.20 0.260 99.7 1.661 48.20 0.311 156.0 83.83 0.210 58.45 0.974 48.20 0.261 100.6 1.677 48.20 0.312 157.2 83.84 0.211 59.14 0.986 48.20 0.262 101.6 1.694 48.20 0.313 158.5 83.85 0.212 59.85 0.997 48.20 0.263 102.6 1.710 48.20 0.314 159.8 83.87 0.213 60.56 1.009 48.20 0.264 103.6 1.726 48.20 0.315 161.1 83.88 0.214 61.27 1.021 48.20 0.265 104.5 1.742 48.20 0.316 162.3 83.90 0.215 61.99 1.033 48.20 0.266 105.5 1.759 48.20 0.317 163.6 83.91 0.216 62.71 1.045 48.20 0.267 106.5 1.776 48.20 0.318 164.9 83.93 0.217 63.44 1.057 48.20 0.268 107.5 1.792 48.20 0.319 166.2 83.95 0.218 64.17 1.070 48.20 0.269 108.5 1.809 48.20 0.320 167.5 83.96 0.219 64.91 1.082 48.20 0.270 109.5 1.826 48.20 0.321 168.8 83.98 0.220 65.65 1.094 48.20 0.271 110.6 1.843 48.20 0.322 170.2 83.99 0.221 66.40 1.107 48.20 0.272 111.6 1.860 48.20 0.323 171.5 84.01 0.222 67.16 1.119 48.20 0.273 112.6 1.877 48.20 0.324 172.8 84.02 0.223 67.91 1.132 48.20 0.274 113.7 1.894 48.20 0.325 174.1 84.04 0.224 68.68 1.145 48.20 0.275 114.7 1.912 48.20 0.326 175.5 84.06 0.225 69.45 1.157 48.20 0.276 115.7 1.929 48.20 0.327 176.8 84.07 0.226 70.22 1.170 48.20 0.277 116.8 1.946 48.20 0.328 178.2 84.09 0.227 71.00 1.183 48.20 0.278 117.8 1.964 48.20 0.329 179.6 84.11 0.228 71.79 1.196 48.20 0.279 118.9 1.982 48.20 0.330 180.9 84.12 0.229 72.58 1.210 48.20 0.280 120.0 2.000 48.20 0.331 182.3 84.14 0.230 73.37 1.223 48.20 0.281 121.1 2.018 48.20 0.332 183.7 84.16 0.231 74.17 1.236 48.20 0.282 122.1 2.036 48.20 0.333 185.1 84.17 0.232 74.98 1.250 48.20 0.283 123.2 2.054 48.20 0.334 186.5 84.19 0.233 75.79 1.263 48.20 0.284 124.3 2.072 48.20 0.335 187.9 84.21 0.234 76.60 1.277 48.20 0.285 125.4 2.090 48.20 0.336 189.3 84.23 0.235 77.42 1.290 48.20 0.286 126.5 2.108 48.20 0.337 190.7 84.24 0.236 78.25 1.304 48.20 0.287 127.6 2.127 48.20 0.338 192.1 84.26 0.237 79.08 1.318 48.20 0.288 128.7 2.146 48.20 0.339 193.5 84.28 0.238 79.92 1.332 48.20 0.289 129.9 2.164 48.20 0.340 194.9 84.30 0.239 80.76 1.346 48.20 0.290 131.0 2.183 48.20 0.341 196.4 84.31 0.240 81.61 1.360 48.20 0.291 132.1 2.202 48.20 0.342 197.8 84.33 0.241 82.46 1.374 48.20 0.292 133.2 2.221 48.20 0.343 199.3 84.35 0.242 83.32 1.389 48.20 0.293 134.4 2.240 48.20 0.344 200.7 84.37 0.243 84.18 1.403 48.20 0.294 135.5 2.259 48.20 0.345 202.2 84.39 0.244 85.05 1.418 48.20 0.295 136.7 2.278 48.20 0.346 203.7 84.41 0.245 85.92 1.432 48.20 0.296 137.9 2.298 48.20 0.347 205.1 84.42 0.246 86.80 1.447 48.20 0.297 139.0 2.317 48.20 0.348 206.6 84.44 0.247 87.69 1.461 48.20 0.298 140.2 2.337 48.20 0.349 208.1

Flow and water heads of 60o triangular notch

of 60o triangular notch Flow of V notch (m3/min) Ｑ＝Ｋｈ5/2

Ｋ＝48.2＋0.0000363/（Ｂ・ｈ3/2）（0.1-0.13m Application range）

Ｑ' Ｑ' Ｑ'（m）（m3/hr）（m3/min）（m）（m3/hr）（m3/min）（m）（m3/hr）

D

h

θ

93

84.46 0.248 88.58 1.476 48.20 0.299 141.4 2.356 48.20 0.350 209.6 84.48 0.249 89.47 1.491 48.20 0.300 142.6 2.376 48.20 0.351 211.1 84.50 0.250 90.38 1.506 48.20 0.301 143.8 2.396 48.20 0.352 212.6 84.52 0.251 91.28 1.521 48.20 0.302 145.0 2.416 48.20 0.353 214.1

94

No.3 In put sell

Flow calculation formula of rectangular weir Ｑ：

ｈ： Water head of V notch (m)Ｋ： Flow coefficient


Ｂ＝ 2.38m (0.5-6.3m Application rang ｈ＝Ｄ＝ 0.30m 0.40m

ＱＫｈＱＫｈＱＫｈ 2.416 48.20 0.100 133.2 2.2197 175.48 0.151 250.6 4.177 177.98 0.202 2.436 48.20 0.101 135.2 2.2537 175.53 0.152 253.2 4.220 178.03 0.203 2.456 48.20 0.102 137.3 2.2879 175.58 0.153 255.8 4.263 178.08 0.204 2.476 48.20 0.103 139.3 2.3223 175.63 0.154 258.4 4.306 178.12 0.205 2.497 48.20 0.104 141.4 2.3569 175.68 0.155 260.9 4.349 178.17 0.206 2.517 48.20 0.105 143.5 2.3916 175.73 0.156 263.5 4.392 178.22 0.207 2.538 48.20 0.106 145.6 2.4266 175.78 0.157 266.1 4.436 178.26 0.208 2.558 48.20 0.107 147.7 2.4617 175.83 0.158 268.8 4.479 178.31 0.209 2.579 48.20 0.108 149.8 2.4970 175.88 0.159 271.4 4.523 178.36 0.210 2.600 48.20 0.109 151.9 2.532 175.93 0.160 274.0 4.567 178.40 0.211 2.621 48.20 0.110 154.1 2.568 175.98 0.161 276.7 4.611 178.45 0.212 2.642 48.20 0.111 156.2 2.604 176.03 0.162 279.3 4.655 178.50 0.213 2.663 48.20 0.112 158.4 2.640 176.08 0.163 282.0 4.700 178.54 0.214 2.684 48.20 0.113 160.6 2.676 176.13 0.164 284.7 4.744 178.59 0.215 2.706 48.20 0.114 162.8 2.713 176.18 0.165 287.3 4.789 178.64 0.216 2.727 48.20 0.115 164.9 2.749 176.23 0.166 290.0 4.834 178.68 0.217 2.749 48.20 0.116 167.1 2.786 176.28 0.167 292.7 4.879 178.73 0.218 2.770 48.20 0.117 169.4 2.823 176.33 0.168 295.4 4.924 178.77 0.219 2.792 48.20 0.118 171.6 2.860 176.38 0.169 298.2 4.969 178.82 0.220 2.814 48.20 0.119 173.8 2.897 176.43 0.170 300.9 5.015 178.87 0.221 2.836 48.20 0.120 176.1 2.934 176.48 0.171 303.6 5.061 178.91 0.222 2.858 48.20 0.121 178.3 2.972 176.53 0.172 306.4 5.106 178.96 0.223 2.880 48.20 0.122 180.6 3.010 176.58 0.173 309.1 5.152 179.00 0.224 2.902 48.20 0.123 182.9 3.048 176.63 0.174 311.9 5.198 179.05 0.225 2.925 48.20 0.124 185.2 3.086 176.68 0.175 314.7 5.244 179.09 0.226 2.947 48.20 0.125 187.4 3.124 176.73 0.176 317.4 5.291 179.14 0.227 2.970 48.20 0.126 189.8 3.163 176.78 0.177 320.2 5.337 179.18 0.228 2.993 48.20 0.127 192.1 3.201 176.82 0.178 323.0 5.384 179.23 0.229 3.015 48.20 0.128 194.4 3.240 176.87 0.179 325.8 5.431 179.27 0.230 3.038 48.20 0.129 196.7 3.279 176.92 0.180 328.7 5.478 179.32 0.231 3.061 48.20 0.130 199.1 3.318 176.97 0.181 331.5 5.525 179.36 0.232 3.084 48.20 0.131 201.4 3.357 177.02 0.182 334.3 5.572 179.41 0.233 3.108 48.20 0.132 203.8 3.397 177.07 0.183 337.2 5.619 179.45 0.234 3.131 48.20 0.133 206.2 3.436 177.12 0.184 340.0 5.667 179.50 0.235 3.154 48.20 0.134 208.6 3.476 177.17 0.185 342.9 5.715 179.54 0.236 3.178 48.20 0.135 211.0 3.516 177.22 0.186 345.7 5.762 179.59 0.237 3.201 48.20 0.136 213.4 3.556 177.26 0.187 348.6 5.810 179.63 0.238 3.225 48.20 0.137 215.8 3.596 177.31 0.188 351.5 5.859 179.68 0.239 3.249 48.20 0.138 218.2 3.637 177.36 0.189 354.4 5.907 179.72 0.240 3.273 48.20 0.139 220.7 3.678 177.41 0.190 357.3 5.955 179.77 0.241 3.297 48.20 0.140 223.1 3.718 177.46 0.191 360.2 6.004 179.81 0.242 3.321 48.20 0.141 225.6 3.759 177.50 0.192 363.1 6.052 179.85 0.243 3.345 48.20 0.142 228.0 3.800 177.55 0.193 366.1 6.101 179.90 0.244 3.370 48.20 0.143 230.5 3.842 177.60 0.194 369.0 6.150 179.94 0.245 3.394 48.20 0.144 233.0 3.883 177.65 0.195 372.0 6.199 179.99 0.246 3.419 48.20 0.145 235.5 3.925 177.70 0.196 374.9 6.249 180.03 0.247 3.443 48.20 0.146 238.0 3.966 177.74 0.197 377.9 6.298 180.07 0.248 3.468 48.20 0.147 240.5 4.008 177.79 0.198 380.9 6.348 180.12 0.249

Flow and the water head of rectangular weir

Flow of V notch (m3/min) Ｑ＝Ｋ・b・ｈ3/2

Ｋ＝107.1＋0.177/h＋14.2/D－25.7｛（B－b）・ｈ／（D・B）｝1/2＋2.04（B/D）1/2

Application range 0.03-0.45 * b（0.15-3.5m Application range b＝（Application range 0.15-5.0m

Ｑ' Ｑ'（m3/min）（m）（m3/hr）（m3/min）（m）（m3/hr）（m3/min）（m）

B

θ

95

3.493 48.20 0.148 243.0 4.050 177.84 0.199 383.8 6.397 180.16 0.250 3.518 48.20 0.149 245.5 4.092 177.89 0.200 386.8 6.447 180.20 0.251 3.543 48.20 0.150 248.1 4.135 177.93 0.201 389.8 6.497 180.25 0.252 3.569 48.20 0.151 250.6 4.177 177.98 0.202 392.8 6.547 180.29 0.253

96

No.4 In put sell

Flow calculation formula of ditch weir Ｑ：

ｈ： Water head of V notch (m)Ｋ： Flow coefficient


Ｂ＝ 0.350m ( >0.5m Application range) ｈ＝ Application range 0.03-D mＤ＝ 0.600m 0.00

ＱＫｈＱＫｈＱＫ392.8 6.547 180.29 0.150 136.4 2.2739 111.83 0.201 213.3 3.5557 112.74 395.9 6.598 180.33 0.151 137.8 2.2970 111.85 0.202 215.0 3.5829 112.76 398.9 6.648 180.38 0.152 139.2 2.3201 111.86 0.203 216.6 3.6102 112.78 401.9 6.698 180.42 0.153 140.6 2.3434 111.88 0.204 218.3 3.6375 112.80 404.9 6.749 180.46 0.154 142.0 2.3668 111.89 0.205 219.9 3.6649 112.82 408.0 6.800 180.51 0.155 143.4 2.3902 111.91 0.206 221.5 3.6924 112.83 411.1 6.851 180.55 0.156 144.8 2.4137 111.93 0.207 223.2 3.7200 112.85 414.1 6.902 180.59 0.157 146.2 2.4373 111.94 0.208 224.9 3.7476 112.87 417.2 6.953 180.63 0.158 147.7 2.4610 111.96 0.209 226.5 3.7753 112.89 420.3 7.005 180.68 0.159 149.1 2.4848 111.98 0.210 228.2 3.8031 112.91 423.4 7.056 180.72 0.160 150.5 2.5086 111.99 0.211 229.9 3.8310 112.93 426.5 7.108 180.76 0.161 152.0 2.5326 112.01 0.212 231.5 3.8589 112.95 429.6 7.160 180.80 0.162 153.4 2.5566 112.03 0.213 233.2 3.8869 112.97 432.7 7.212 180.85 0.163 154.8 2.5807 112.04 0.214 234.9 3.9150 112.99 435.8 7.264 180.89 0.164 156.3 2.6049 112.06 0.215 236.6 3.9432 113.01 438.9 7.316 180.93 0.165 157.7 2.6291 112.08 0.216 238.3 3.9714 113.03 442.1 7.368 180.97 0.166 159.2 2.6535 112.09 0.217 240.0 3.9998 113.05 445.2 7.421 181.02 0.167 160.7 2.6779 112.11 0.218 241.7 4.0281 113.07 448.4 7.473 181.06 0.168 162.1 2.7024 112.13 0.219 243.4 4.0566 113.09 451.6 7.526 181.10 0.169 163.6 2.7270 112.15 0.220 245.1 4.0851 113.11 454.7 7.579 181.14 0.170 165.1 2.7517 112.16 0.221 246.8 4.1138 113.13 457.9 7.632 181.18 0.171 166.6 2.7764 112.18 0.222 248.5 4.1424 113.15 461.1 7.685 181.22 0.172 168.1 2.8013 112.20 0.223 250.3 4.1712 113.17 464.3 7.738 181.27 0.173 169.6 2.8262 112.22 0.224 252.0 4.2000 113.19 467.5 7.792 181.31 0.174 171.1 2.8512 112.24 0.225 253.7 4.2290 113.21 470.7 7.845 181.35 0.175 172.6 2.8762 112.25 0.226 255.5 4.2579 113.23 473.9 7.899 181.39 0.176 174.1 2.9014 112.27 0.227 257.2 4.2870 113.25 477.2 7.953 181.43 0.177 175.6 2.9266 112.29 0.228 259.0 4.3161 113.27 480.4 8.007 181.47 0.178 177.1 2.9519 112.31 0.229 260.7 4.3453 113.29 483.7 8.061 181.51 0.179 178.6 2.9773 112.33 0.230 262.5 4.3746 113.31 486.9 8.115 181.56 0.180 180.2 3.0028 112.34 0.231 264.2 4.4040 113.33 490.2 8.170 181.60 0.181 181.7 3.0283 112.36 0.232 266.0 4.4334 113.35 493.4 8.224 181.64 0.182 183.2 3.0540 112.38 0.233 267.8 4.4629 113.37 496.7 8.279 181.68 0.183 184.8 3.0797 112.40 0.234 269.5 4.4925 113.39 500.0 8.334 181.72 0.184 186.3 3.1055 112.42 0.235 271.3 4.5221 113.41 503.3 8.388 181.76 0.185 187.9 3.1313 112.44 0.236 273.1 4.5518 113.44 506.6 8.444 181.80 0.186 189.4 3.1573 112.45 0.237 274.9 4.5816 113.46 509.9 8.499 181.84 0.187 191.0 3.1833 112.47 0.238 276.7 4.6115 113.48 513.2 8.554 181.88 0.188 192.6 3.2094 112.49 0.239 278.5 4.6414 113.50 516.6 8.609 181.92 0.189 194.1 3.2356 112.51 0.240 280.3 4.6714 113.52 519.9 8.665 181.96 0.190 195.7 3.2618 112.53 0.241 282.1 4.7015 113.54 523.2 8.721 182.00 0.191 197.3 3.2882 112.55 0.242 283.9 4.7316 113.56 526.6 8.777 182.04 0.192 198.9 3.3146 112.57 0.243 285.7 4.7619 113.58 530.0 8.833 182.09 0.193 200.5 3.3411 112.58 0.244 287.5 4.7922 113.60 533.3 8.889 182.13 0.194 202.1 3.3676 112.60 0.245 289.4 4.8225 113.62 536.7 8.945 182.17 0.195 203.7 3.3943 112.62 0.246 291.2 4.8530 113.64 540.1 9.001 182.21 0.196 205.3 3.4210 112.64 0.247 293.0 4.8835 113.66 543.5 9.058 182.25 0.197 206.9 3.4478 112.66 0.248 294.8 4.9141 113.68

Flow and the water head of ditch weir

Flow of V notch (m3/min) Ｑ＝Ｋ・B・ｈ3/2

Ｋ＝107.1＋(0.177/h＋14.2h/D）（1＋ε）Application range 0.03-0.45 * b1/2 m

Application range 0.15-5.0m）（0.3～ 2.5m Application range e =e = 0.55(D－1)Ｑ' Ｑ' Ｑ'

（m3/hr）（m3/min）（m）（m3/hr）（m3/min）（m）（m3/hr）（m3/min）

D

B

h

b

97

546.9 9.114 182.29 0.198 208.5 3.4747 112.68 0.249 296.7 4.9447 113.70 550.3 9.171 182.33 0.199 210.1 3.5016 112.70 0.250 298.5 4.9755 113.72 553.7 9.228 182.37 0.200 211.7 3.5286 112.72 0.251 300.4 5.0063 113.75 557.1 9.285 182.41 0.201 213.3 3.5557 112.74 0.252 302.2 5.0371 113.77

98

In put sell

Application range 0.03-D m

ｈＱＫ0.252 302.2 5.0371 113.77 0.253 304.1 5.0681 113.79 0.254 305.9 5.0991 113.81 0.255 307.8 5.1302 113.83 0.256 309.7 5.1613 113.85 0.257 311.6 5.1926 113.87 0.258 313.4 5.2239 113.89 0.259 315.3 5.2552 113.91 0.260 317.2 5.2867 113.93 0.261 319.1 5.3182 113.96 0.262 321.0 5.3498 113.98 0.263 322.9 5.3814 114.00 0.264 324.8 5.4131 114.02 0.265 326.7 5.4449 114.04 0.266 328.6 5.4768 114.06 0.267 330.5 5.5087 114.08 0.268 332.4 5.5407 114.10 0.269 334.4 5.5728 114.12 0.270 336.3 5.6050 114.15 0.271 338.2 5.6372 114.17 0.272 340.2 5.6695 114.19 0.273 342.1 5.7018 114.21 0.274 344.1 5.7342 114.23 0.275 346.0 5.7667 114.25 0.276 348.0 5.7993 114.27 0.277 349.9 5.8319 114.29 0.278 351.9 5.8647 114.32 0.279 353.8 5.8974 114.34 0.280 355.8 5.9303 114.36 0.281 357.8 5.9632 114.38 0.282 359.8 5.9962 114.40 0.283 361.8 6.0292 114.42 0.284 363.7 6.0623 114.44 0.285 365.7 6.0955 114.47 0.286 367.7 6.1288 114.49 0.287 369.7 6.1621 114.51 0.288 371.7 6.1955 114.53 0.289 373.7 6.2290 114.55 0.290 375.8 6.2625 114.57 0.291 377.8 6.2961 114.60 0.292 379.8 6.3298 114.62 0.293 381.8 6.3636 114.64 0.294 383.8 6.3974 114.66 0.295 385.9 6.4312 114.68 0.296 387.9 6.4652 114.70 0.297 390.0 6.4992 114.72 0.298 392.0 6.5333 114.75 0.299 394.0 6.5675 114.77

Flow of V notch (m3/min)

In case that e is negative it makes 0 0.55(D－1) Ｑ'

（m）（m3/hr）（m3/min）

D

B

h

99

0.300 396.1 6.6017 114.79 0.301 398.2 6.6360 114.81 0.302 400.2 6.6703 114.83 0.303 402.3 6.7047 114.86

Desain BAK IPAL

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