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Concurrent Technologies Corporation
Remediation Survey
Ground Water Pump and Treat with an Air Stripper
Page 7
V.
TECHNOLOGY PERFORMANCE
A.
Remediation Technology Choice
1.
Other Remediation Technologies Considered for this Site:
A Liquid-phase Carbon Adsorption system was originally installed. However, continued
pumping resulted in mobilization of pure-phase DNALP, thereby increasing concentrations
in the pumping well. Carbon adsorption was determined to be inefficient and not cost
effective for long-term operation of the treatment system. A technology evaluation was
performed and looked in detail at air stripping with off-gas treatment and UV oxidation.
2.
Why was Ground Water Pump and Treat with an Air Stripper Chosen over Other
Technologies?
Air stripping with catalytic oxidation was determined to be more cost effective than UV
oxidation or carbon adsorption over the long term.
Remediation Technologies used at this Site in addition to Ground Water Pump and Treat
3.
with an Air Stripper:
Inorganic Removal System: equalization tank, inclined plate clarifier with pH adjustment
and polymer addition, two parallel pressure sand filters, two parallel filter with 50 micron
bag filters.
B.
Operation of Ground Water Pump and Treat with an Air Stripper
1.
Duration: Not constructed yet. Construction is expected to begin after April 1996.
2.
Other:
C.
Lessons Learned
Not applicable as system is not in place yet.
1.
Lessons Learned about the Operation of the Equipment:
2.
Why was the Technology Successful?
3.
Why was the Technology Unsuccessful?





 


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