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Concurrent Technologies Corporation
Remediation Survey
Ground Water Pump and Treat with an Air Stripper
Page 6
b.
GAC Volume:
2000 lb./vessel x 2
c.
Flow Through Rate:
50 GPM
d.
Contact Time: Empty bed contact time above 12 min.; designed for more than 50
GPM
e.
Removal Efficiency:
75%
3.
Design Tools:
Isotherms, contact time,
4.
Remediation Hardware:
Encotech, Donora, PA
5.
Capital Cost:
$85,000
6.
Operating and Maintenance Cost:
7.
Other:
Operates 10% faster than pumping.
V.
TECHNOLOGY PERFORMANCE
A.
Remediation Technology Choice
1.
Other Remediation Technologies Considered for this Site:
Soil extraction; air stripping
2.
Why was Ground Water Pump and Treat with an Air Stripper Chosen over Other
Technologies?
Soil conditions; contaminants in ground water; did not want to heat air stripper exhaust (high
electricity costs) -> because would still have to go through GAC.
Remediation Technologies used at this Site in addition to Ground Water Pump and Treat
3.
with an Air Stripper:
None.
B.
Operation of Ground Water Pump and Treat with an Air Stripper
1.
Duration:
December 1994 - present
2.
Other:
Checked 2x / month





 


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