Vincent Pinto.pdf

8/16/2019 Vincent Pinto.pdf

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=

• .

, ,

.

BB A F

.

BB

.

• I 1989

() 1989.

• F

1990 E

• F A

H I. ( H B

I.)

• F BB A

2002 H

• 1,000

2010

Dr. Hallvard Ødegaard


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,

.

BB ,

Stagnant LiquidLayer

Imbedded

ParticulateMatter

Moving

Mixed

Liquor

Out Diffusionof

Biodegradation

Products

Erosion

Biofilm

BWT Media

Nutrients & O2enter Biofilm via

Adsorption

Diffusionmechanism

,

.

E

.

.

20


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:


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D D


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D BD . ≥ 8 / .

.

.

I


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≤ 3 / .

.

D


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D D

I I I I I


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Comparison

MBBR Activated Sludge

Single Pass Process Requires returnin g the sludge back to the hea d

of the process

No Process Adjustments Requi res an operator exper ienced in measur ingand balancing the biomass concentrationsbetween the different process.

Smaller Foo t Print Larger volumes requ ired f or th e sa me level oftreatment.

Not affected by washout of biology Surges in flow can wash out the biomass losingtreatment capability

Less mechanical equipment Requires return pumps and controls for wastepumps

More efficient nutrient removal Takes up to 12 weeks to develop maturenitrifiers if they are lost or die out.

• (BD, H3, 3, .)

.

• : /2/.

• C BD ( )

.

• G BD BD .

• (2) : A (3) I (2/3).

•

()

• F = 2,000 3/

• BD C = 300 / = 300 /3

• BD = 2,000 300 = 600,000 /

• = 200 3

• F F = 50%

• A = 100 3

• A = 680 2/3 (I )

• A = 100 680 = 68,000 2

• = 600,000 / / 68,000 2 = 8.82 /2/


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• :rA = rA-max * SBODeff / (SBODeff + Khs)……………(1)where,rA = SBOD removal rate, g/m

2 /day

rA-max = Maximum SBOD removal rate at 20o C = 15 g/m2 /day

SBODeff = Effluent SBOD or Substrate SBOD, mg/lKhs = Substrate half saturation coefficient = 10 mg/l

rA = SALR [(SBODin – SBODeff) / (SBODin)]………….(2)where,

SALR = surface area loading rate, g/m2 /day

•

• BD

50 90% : 5 15 /2/

> 90% 1: 10 20 /2/

2: 5 7.5 /2/

E BD < 5 / LR 1:10 – 20 g/m2/day

LR2: 5 –7.5 g/m2/day

LR3: 1 – 5 g/m2/day

• NH3-N Removal

Single Reactor 50 – 90% removal LR: 0.5 – 0.7 g-N/m2/day

Two Reactors > 90% Removal LR 1 : 1.0 – 1.5 g-N/m2/day

LR2: 0.25 –0.75 g-N/m2/day

1: ,

• 22 D• E A BD • E H3 < 4 /• C (6 10 C )

• ( C)• BB C• C • C •


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,

0

0.5

1

1.5

2

2.5

3

0 0.5 1 1.5 2 2.5 3 N H 3 - N R e m o v a l R a t e ( g N / m 2 / d a y )

NH3-N Loading Rate (g N/m2/day)

NH3-N Removal Rate vs. NH3-N Loading Rate

100% Removal

7 - 10 oC

11 - 14 oC

15 - 18 oC

19 - 22 oC

• I 0.5 0.6 H3 /2/, 99%.

• I 0.6 0.8 H3 /2/, 90%.• I 0.8 1.0 H3 /2/, 80%.• I 1.0 1.5 H3 /2/, 60%.

• I A = 30 /

• E = 4 /• = 87%

• D• 0.6 0.8 H3/2/

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

0 30 60 90 120 150 180 210 240 270 300 330 360

H3I

H3E

Number of Days [in 2010]

C o n c e n t r a t i o n ( m g / L )


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2: • C C., I. (CCI) 5 6 (1923 3)

( A D)

•

2:

• 1: B

• 2: C

• 3: F

• C

• I : 15,000 GD (57 3/)

• I CD: 15,000 /

• E CD: < 550 /

• E : < 2 /


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• I CD > 10,000 /, H > 8 .

• I CD < 10,000 /, H 3 5

0

2000

4000

6000

8000

10000

18-Jun-05 25-Jun-05 2-Jul-05 9-Jul-05 16-Jul-05 23-Jul-05 30-Jul-05 6-Aug-05 13-Aug-05

Time (Days)

S C O D ( m g / L )

70

75

80

85

90

95

100

105

110

115

H R T ( h o u r s )

SCOD InfluentSCOD EffluentFloc SCOD EffluentHRT

• H 70 80 (3 4 ).

• H 100 .

• F D• I F: 15,000 GD (57 3 /)

• I CD: 15,000 /

• E CD: < 550 /

• : 95,472 (360 3)

• C: AC 450

• C F F: 31%


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0

5,000

10,000

15,000

20,000

25,000

19-Nov-05 27-Feb-06 7 -J un-06 15-Sep-06 24-De c-06 3 -Apr -07

Time (days)

C O D ( m g / L )

Influent COD

Effluent COD

0

2

4

6

8

10

12

14

2 5- Oc t- 05 2 4- Ma r- 06 21 -A ug -06 1 8- Ja n-0 7 1 7- Ju n- 07

Time (days)

E f f l u e n t P h e n o l ( m g / L )

. 97%

y = 0.9668x

R 2 = 0.999

0

5

10

15

20

0 2 4 6 8 10 12 14 16 18 20

COD Surface Loading Rate (gCOD/m2/d)

C O D R e m o v a l R a t e

( g T C O D - F C O D / m

2 / d )

Full-Scale

Lab-Scale


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Vincent Pinto.pdf