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uwspace.uwaterloo.ca

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Sorbed HA (kg/kg sol.)

Batch Sorption of Humic Acid to Aquifer Solids

Aqueous HA (kg/m 3 )

10 1

10 0

10 -1

10 -2

10 -3

2.5x10 -04

2.0x10 -04

1.5x10 -04

1.0x10 -04

5.0x10 -05

0.0x10 +00

Langmuir 2-site model

Ka= 39.1 α= 0.005 f= 0.47 Q= 0.00042

observed

simulated

Aqueous Humic Acid

0 25 50 75 100 125 150

Time (days)

Sorbed Humic Acid

0 25 50 75 100 125 150

Time (days)

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0.5

y(m)

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0

1

0.5

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0

0

X

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2

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4

extraction

well

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Distance (m)

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HA (g/L)

HA (g/L)

1

0.8

0.6

0.4

0.2

HA btc at T3B4

0

0 25 50 75 100 125 150 175 200

1

0.8

HA btc at T7C4

0.6

0.4

0.2

Pilot Scale Humic Acid Breakthrough

0

0 25 50 75 100 125 150 175 200

Time (days)

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0.0001

model data

Xylenes

Ethylbenzene

Toluene

Benzene

0

0 50 100

Time (days)

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day 10

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BTEX

µg/L

1 m

:g/L

1000

1000

800

800

600 600

400 400

200 200

0 0

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(m)

(m)

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0

0.5

0.5

1

0.5

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0

1 46 days

0

0

95 days

Total

BTEX

µg/L

1600

1400

1200

1000

800

600

400

200

50

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0

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Conc (g/L)

10 -3

10 -4

10 -5

10 -3

10 -4

10 -5

total naphthalenes

HA added (0.83 g/L)

+ *

simulated

observed

+ + + + + +

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+

++

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dimethylnaphthalene

+ + ++

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+ +

+

1

10 2

10 3

* * * * * * * ***** *

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*** * *

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trimethylnaphthalene

10 1

10 2

methylnaphthalene

Time (days)

dimethylnaphthalene

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Conc (g/L)

10 -3

10 -4

10 -5

10 -3

10 -4

10 -5

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total naphthalenes

10 1

methylnaphthalene

10 2

+ + +

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++

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+

+

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*

trimethylnaphthalene

10 1

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*

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HA added (0.83 g/L)

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+

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10 2

Time (days)

simulated

observed

10 3

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++

* * *

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Conc (g/L)

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10 -5

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HA added (0.83 g/L)

10 1

+

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10 1

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+

+

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+

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* * * *

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10 2

*

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* +

*

+

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**

+ +

* *

+

+ * *

+

simulated

observed

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1600

1400

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1200

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1600

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10 -4

10 -5

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10 -4

10 -5

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10 -4

10 -5

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[HA]=10.0

[HA]=0.83

HA added

+ *

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dimethylnaphthalene

* * * * * * ** ** * * *** * * * * **** *** * * * *

trimethylnaphthalene

10 1

10 2

Time (days)

10 3

[HA] = 10.0 g/L

[HA] = 0.83 g/L

[HA] = 0.25 g/L

observed

+

*

[HA]=0.25

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10 -4

10 -5

trimethylnaphthalene

* * * * * * ** ** * * *** * * * * **** *** * * * *

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HA added

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Time (days)

+ *

10 3

Km = 5 L/g

Km = 10 L/g

Km = 15 L/g

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Other

DMNap

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enhanced dissolution

no enhancement

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10 2

Time (years)

10 0

MNap

Time (days)

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Elev. (m)

Elev. (m)

10

5

0

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10

5

benzene, 10 years

0

TEX, 10 years

10

5

10

0

0 50 100 150 200

Distance (m)

benzene, 20 years

TEX, 20 years

Remaining cpds, 20 years

0 50 100 150 200

Distance (m)

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Elev. (m)

10

5

5

oxygen, 10 years

0.0 mg/L

3.8 mg/L

0

oxygen, 20 years

10

0.0 mg/L

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0

0 100 200 300 400

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0.5

0.4

0.3

0.2

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biodegraded mass

0.1

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aqueous mass

0

0 2000 4000 6000 8000

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Elev (m)

Elev (m)

Elev (m)

Elev (m)

10

5

0

10

5

0

10

5

0

10

5

0

10

5

Distance (m)

benzene, 10 years

benzene, 15 years

benzene, 20 years

ethanol, 20 years

oxygen, 20 years

0

0 100 200 300 400

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FKDSWHU 71 PRGHOOLQJ WKH LPSDFW RI HWKDQRO 438

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0.5

0.4

0.3

0.2

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biodegraded mass

aqueous mass

0

0 2000 4000 6000 8000

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Elev (m)

Elev. (m)

Elev. (m)

10

5

0

15 years

10

5

0

20 years

10

5

gasoline source

10 years

gasohol source

10 years

15 years

20 years

0

0 50 100 150 200 0 50 100 150 200

Distance (m)

Distance (m)

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400

300

200

100

R ben =1.1

benzene plume from gasohol source

benzene plume from gasoline source

R ben =1.5

0

0 5 10 15 20 25

Time (years)

Iljxuh 71


FKDSWHU 71 PRGHOOLQJ WKH LPSDFW RI HWKDQRO 446

Elev (m)

Elev. (m)

Elev. (m)

10

5

5

0

20 years

10

5

gasoline source

10 years

0

15 years 15 years

10

0

0 100 200 300 400

Distance (m)

gasohol source

10 years

20 years

0 100 200 300 400

Distance (m)

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Elev. (m)

Elev. (m)

10

5

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gasoline source

10 years

0

15 years

10

0

20 years

10

5

0

0 100 200 300 400

Distance (m)

gasohol source

10 years

15 years

20 years

0 100 200 300 400

Distance (m)

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ethanol spilled

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ethanol

benzene

TEX

0 2500 5000 7500 10000

Time (days)

remaining components

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10

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20 yrs.

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ethanol

methane

oxygen

benzene

methane, oxygen (mg/L)

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