A 10 m cube of gravel and sand aquifer is contaminated with 200 L of Trichloroethylene...
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A 10 m cube of gravel and sand aquifer is contaminated with 200 L of Trichloroethylene (TCE). The amount of TCE dissolved in the aquifer is 20% of its aqueous solubility. It is determined to use the Pump and Treat method to remove all the TCE. a. How much TCE is dissolved in the aquifer (in grams)? b. How much TCE remains as undissolved DNAPL mass (in grams)? c. The hydraulic gradient of the gravel and sand aquifer is 0.001 when pumping the aquifer using the Pump and Treat method. Using Tables 5.11 & 5.12, what is the average linear velocity of the aquifer during pumping (in m/day)? d. What is the contaminant removal rate (in g/day)? e. How long will it take to remove all the TCE (in years)? A 10 m cube of gravel and sand aquifer is contaminated with 200 L of Trichloroethylene (TCE). The amount of TCE dissolved in the aquifer is 20% of its aqueous solubility. It is determined to use the Pump and Treat method to remove all the TCE. a. How much TCE is dissolved in the aquifer (in grams)? b. How much TCE remains as undissolved DNAPL mass (in grams)? c. The hydraulic gradient of the gravel and sand aquifer is 0.001 when pumping the aquifer using the Pump and Treat method. Using Tables 5.11 & 5.12, what is the average linear velocity of the aquifer during pumping (in m/day)? d. What is the contaminant removal rate (in g/day)? e. How long will it take to remove all the TCE (in years)?
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