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 Concurrent Technologies Corporation
Remediation Survey
Ground Water Pump and Treat with an Air Stripper
Page 7
C.
Lessons Learned
1.
Lessons Learned about the Operation of the Equipment:
Manganese (Mn) in groundwater causes carbon to clump (decreases absorption). Inject nitrogen gas;
backwash every 2 weeks.
UV light - prevents GAC from clogging (approx. 2000 effective)
2.
Why was the Technology Successful?
Met discharge limits and contaminant standards for aquifer.
3.
Why was the Technology Unsuccessful?
VI.
CONTRACT TYPE AND COSTS
A.
Design of System
1.
Contract Type:
2.
Cost:
Rolled into purchase price. (See (B))
B.
Construction of System
1.
Contract Type:
2.
Cost:
$170,000 total
C.
Operation of System
1.
Contract Type:
2.
Cost:
$35,000 - $40,000/yr. Contracts out labor and analytical.
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