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Purpose§ Compare costs andenergy consumption ofvarious mixingtechnologies§ Discuss currentinstallations / testing oflarge bubble mixing§ Part of City ofGreensboro’s T.Z.Osborne Expansion andBNR Upgrade ProjectVertical turbine mixers in aeration basin influent channel atTZO WRF, Greensboro NCNC Water AWWA JAM WEA 2010 2011
AgendaI. Why mix in BNR basins?II. Mixing alternatives1. Jet mix2. Vertical turbine3. Hyperboloid4. Large bubble mixingIII. Results1. Equipment, capital, O&M, andnet present worth costs2. Energy comparison3. Summary of BNR pilots andongoing projects with largebubble mixingPulsairNC Water AWWA JAM WEA 2010 2011
Page 1: Mixing Alternatives Evaluation and
Page 8 and 9: Jet MixkLa SystemsTZO WRF Mixing Pu
Page 10 and 11: Hyperboloid Mixing—Pilots and Ins
Page 12 and 13: Big Bubble Mixing§ Components:§ C
Page 14 and 15: Big Bubble MixingNozzlesAirHeaderAc
Page 16 and 17: Cost Evaluation Assumptions§ All c
Page 18 and 19: Results: Net Present Worth$14,000,0
Page 20 and 21: Results: Energy Consumption1.57 72H
Page 22 and 23: ReferencesNC Water AWWA JAM WEA 201
Page 24 and 25: Water JAM 2010 2011Questions

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