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 Concurrent Technologies Corporation
Remediation Survey
Air Sparging with Soil Vapor Extraction
Page 6
3.
Design Tools:
Regression analysis to assess radius of influence
4.
Remediation Hardware:
5.
Capital Cost:
6.
Operating and Maintenance Cost:
See Section VI
D.
Vacuum System
1.
Design Goals:
Full coverage (vacuum) across target AAS area, and old
tank field soils
2.
Design Parameters
a.
Operating Vacuum: 020 in vacuum per line (5 total)
b.
Operating Depths/Vacuums:
4 ft below grade, ~0.10 in H2O
c.
Operating Mode (e.g., continuous, modulating, stepwise):
Cont.
d.
Other:
500 SCFM @ 30 in H2O
3.
Design Tools:
4.
Remediation Hardware:
Rotron EN12 15 HP Blower
5.
Capital Cost:
~20 K
6.
Operating and Maintenance Cost:
Maintenance costs minimal. See section VI for operating costs.
E.
Offgas System
1.
Design Goals
a.
Contaminant Discharge Limit:
100 lbs/day
b.
Type:
Total volatile Hydrocarbons
2.
Design Parameters
a.
Flow Through Rate:
500 cfm
b.
Residence Time:
c.
Other:
1,800 lb granular activated carbon vessel
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