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iNT ERNAT70NAL <br /> Tank dimensions: <br /> Length: 10.0 ft <br /> Width: 6.5 ft <br /> Height: 6.5 ft <br /> Actual operational volume: 2674 gallons <br /> 6. OXYGEN REQUIREMENTS: <br /> Ib.OZ required for Ib.VSS destroyed: 2.3 Ib O,/lb VSS <br /> Actual oxygen requirement(AOR): 0.5 Ib 02/hr <br /> Correction factor in wastewater: 0.65 <br /> Correction factor in sludge: 0.27 <br /> Safety factor: 1.5 <br /> Standard oxygen requirement(SOR): 2.6 Ib 02/hr <br /> C. AIR SUPPLY SYSTEM <br /> Ib.OZ per ft.3 of air: 0.0175 <br /> Efficiency per foot of immersion depth: 0.85% <br /> Air flow required: 52 SCFM <br /> Air volume per 1,000 ft3 tank volume 146 SCFM <br /> Air flow for each coarse bubble diffuser(TFA-3/4"): 6 SCFM <br /> No. of diffusers: 8 <br /> IV. MECHANICAL EQUIPMENT <br /> 4.1 BLOWERS <br /> Air flow required: 242 SCFM <br /> No. of air blower: 2 One for redundancy <br /> Model: Omega 41P DB130C <br /> RPM: 2,905 <br /> Motor shaft horsepower: 6.3 bhp <br /> Discharge temperature: 162 OF <br /> Power: 8.6 bhp <br /> Inlet volume: 243 SCFM <br /> Inlet pressure: 14.6 psia <br /> Inlet temperature: 90 OF <br /> Discharge pressure: 18.1 psia <br /> Differential pressure: 3.5 psia <br /> Estimated noise level: 67 dB(A) <br /> 4.2 PUMPS <br /> Submersible Lift Pumps <br /> No. of pump: 2 One standby <br /> Flow: 80 gpm <br /> Head: 20 ft <br /> Power: 0.75 hp <br /> Plant Design Appendix-i-13 of 18 08/22/07 <br />