TABLE 3
Metro Plant Expansion - Cost Comparison
CONVENTIONAL
I. SECONDARY
Pre-Aeration & Aeration Basin
Aeration Blowers & Building
Chlorine Contact Chamber
Site Work
Total Secondary
II. SLUDGE HANDLING
Digester Anaerobic
Digester Aerobic
Aeration Blowers & Build
Site Work
Total Sludge Handling
Total Cost
2,860K
250K
300K
350K
3,760K
2,000K
2/725K
725K
600K
6,050K
9,810K
0
2 / 0
3 TECHNOLOGY
I. SECONDARY
345 Diffuser Racks
RAS Sys. Increase Pump & Pipe
Diffuser pumps, filters, pipe sys.
Cryogenic Storage, H.E. & Pipe
Site Work
Total Secondary
II. OZONE SLUDGE OXIDATION
Ozone Generation
200 Diffuser Racks
Diffuser pumps, filters, pipe
Facilities & Buildings
Cryogenic Storage, H.E.&Pipe
Site Work
Total Ozone System
Total Cost
450K
250K
410K
170K
150K
1,430K
2,000K
275K
105K
360K
140K
110K
2,990K
4,420K
D.B.Cohen