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Concurrent Technologies Corporation
Remediation Survey
Air Sparging with Soil Vapor Extraction
Page 8
C.
Lessons Learned
1.
Lessons Learned about the Operation of the Equipment:
Maximum "bubble radius" was 12 feet
SVE "capture rate" to sparge "injection rate" = 8:1
2.
Why was the Technology Successful?
Air sparging with SVE effectively removes dissolved phase VOCs
3.
Why was the Technology Unsuccessful?
Main obstacles: shallow watertable, heterogeneous soils, soluble target VOCs, &
irregular topography (due to nearby creek)
Only removed 25 lbs VOCs in first 120 days (low yield is likely due to shallow water
conditions)
VI.
CONTRACT TYPE AND COSTS
A.
Design of System
1.
Contract Type:
2.
Cost:
Under $90,000 for design & installation
B.
Construction of System
1.
Contract Type:
2.
Cost:
C.
Operation of System
1.
Contract Type:
2.
Cost:





 


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