PROCESS BENEFITS OF SEQUENTIAL LARGE BUBBLE VERTICAL MIXING LARRY - PowerPoint PPT Presentation

PROCESS BENEFITS OF SEQUENTIAL LARGE BUBBLE VERTICAL MIXING LARRY L. BELL V.P. SALES PULSED HYCRAULICS INC.

BNR BASINS: AERATED & ANOXIC

WHAT IS LARGE BUBBLE VERTICAL MIIXNG? • THE PERIODIC INJECTION OF COMPRESSED AIR INTO THE BOTTOM OF A TANK TO CREATE BUBBLE MASSES > 6 “ IN DIAMETER. • THE BUBBLE MASSES RISE TO THE SURFACE PULLING LIQUID AND SOLIDS IN THEIR WAKE. • LARGE CONVECTION CELLS ARE CREATED THAT SCOUR THE SIDE WALLS AND BOTTOM OF THE TANK.

CATERPILLAR – PEORIA, IL

PICKENS, SC WWTP ANOXIC ZONES

ANCILLARY BENEFITS OF LARGE BUBBLE MIXING IN BNR BASINS ENERGY – EFFICIENT MIXING • LOW MAINTENANCE • PREVENTS SEDIMENT ACCUMULATION • INCREASES ACTIVE TANK VOLUME • ELIMINATES SEPTICITY • IMPROVES SOLIDS CONTACT IN BASINS • IMPROVES OXYGEN TRANSFER IN OXIC ZONES • INCREASES BIOLOGICAL ACTIVITY • REDUCES SOLIDS LOADING RATE TO SECONDARY CLARIFIERS • REDUCES RAS PUMPING REQUIREMENT • REDUCES FILTER LOADING AND BACKWASH • REDUCES CHLORINE DEMAND OR UV ENERGY DEMAND •

Horizontal Mixers Stir

Enhance Oxygen Transfer Efficiency by Recirculating Fine Bubbles Back Down

Anoxic Mixing & Aeration Enhancement : Seeing Is Believing

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