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Decouple reaction between carbonate and Benzene( aq ), other forms of carbon. PowerPoint Presentation
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Decouple reaction between carbonate and Benzene( aq ), other forms of carbon. - PowerPoint PPT Presentation


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Config → Redox Couples…. Decouple reaction between carbonate and Benzene( aq ), other forms of carbon. Default setting: all redox reactions are coupled. Specify domain’s starting fluid composition on the Initial pane.

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Presentation Transcript
slide2

Config →

Redox Couples…

Decouple reaction between carbonate and Benzene(aq), other forms of carbon.

Default setting: all redox reactions are coupled.

slide3

Specify domain’s starting fluid composition on the Initial pane

Decoupled redox pairs (Benzene and carbonate) can be constrained independently.

Start and end times of two reaction intervals

slide4

You enable redox kinetics on the Reactants pane.

add → Kinetic →

Redox reaction

slide5

Type out the redox reaction.

Set enzyme function to “on” and enter rate constant, half-saturation constant, and enzyme concentration.

slide6

Inlet fluid enters the domain from t = 0 to 2 years

Inlet fluid carries Benzene pulse into the domain

slide7

Inlet 2fluid enters the domain from t = 2 to 10 years

Clean rinse water: negligible Benzene in the second inlet fluid

slide8

Specify domain size, gridding, and flow rate on the Domain pane.

Domain is 1 km long, divided into 400 nodal blocks

Set flowrate for 1st and 2nd reaction intervals

Set specific discharge or head drop

slide9

Set various mass transport properties on the Medium pane.

Porosity affects groundwater velocity.

Used to calculate coefficient of hydrodynamic dispersion.

Run → Go

traces the model

slide10

Initial pulse of Benzene contaminated

water is attenuated by biodegradation.