Advanced Aeration, Inc. Presentation of Vacuum Bubble® Technology Traditional aeration uses buoyant bubbles buoyant bubbles float to surface contact/DO delivery time is minimal buoyant bubbles are expensive to generate Aerob-A-Jet bubbles are tiny vacuum bubbles are created under a partial vacuum tiny bubbles remain suspended for hours (.25 mm for 10-12 hours) they readily diffuse and disperse optimize aerobic bacterial growth VBA (Vacuum Bubble Aeration) technology replaces large motors 3 hp can replace a 25 hp motor (traditional aeration) VBA is maximized with less mixing Even better results if sludge is not disturbed !! For high strength wastes, VBA has no equal ! traditional aeration can’t handle BOD above 2-3,000 VBA can handle 9,000 BOD! Converts anaerobic to aerobic can dramatically improve aerobic performance in any BOD application Traditional aeration is very common and well established numerous large companies with established world-wide market-share old method of traditional aeration has NSF approval [The competitive landscape Provide an overview of product competitors, their strengths and weaknesses Position each competitor’s product against new product]

“It’s All About the BubbleTM!” Traditional aeration uses buoyant bubbles buoyant bubbles float to surface contact/DO delivery time is minimal buoyant bubbles are expensive to generate Aerob-A-Jet bubbles are tiny vacuum bubbles are created under a partial vacuum tiny bubbles remain suspended for hours (.25 mm for 10-12 hours) they readily diffuse and disperse optimize aerobic bacterial growth VBA (Vacuum Bubble Aeration) technology replaces large motors 3 hp can replace a 25 hp motor (traditional aeration) VBA is maximized with less mixing Even better results if sludge is not disturbed !! For high strength wastes, VBA has no equal ! traditional aeration can’t handle BOD above 2-3,000 VBA can handle 9,000 BOD! Converts anaerobic to aerobic can dramatically improve aerobic performance in any BOD application Traditional aeration is very common and well established numerous large companies with established world-wide market-share old method of traditional aeration has NSF approval [The competitive landscape Provide an overview of product competitors, their strengths and weaknesses Position each competitor’s product against new product]

Today’s Challenges in Wastewater Treatment Wastewater Engineers are constantly challenged to: Reduce accumulated solid waste. Reduce power consumption. Reduce undesirable odors. Reduce contaminants in discharged water (Improve water quality).

Wastewater Treatment Basics Traditional aeration uses buoyant bubbles buoyant bubbles float to surface contact/DO delivery time is minimal buoyant bubbles are expensive to generate Aerob-A-Jet bubbles are tiny vacuum bubbles are created under a partial vacuum tiny bubbles remain suspended for hours (.25 mm for 10-12 hours) they readily diffuse and disperse optimize aerobic bacterial growth VBA (Vacuum Bubble Aeration) technology replaces large motors 3 hp can replace a 25 hp motor (traditional aeration) VBA is maximized with less mixing Even better results if sludge is not disturbed !! For high strength wastes, VBA has no equal ! traditional aeration can’t handle BOD above 2-3,000 VBA can handle 9,000 BOD! Converts anaerobic to aerobic can dramatically improve aerobic performance in any BOD application Traditional aeration is very common and well established numerous large companies with established world-wide market-share old method of traditional aeration has NSF approval [The competitive landscape Provide an overview of product competitors, their strengths and weaknesses Position each competitor’s product against new product]

Wastewater Treatment All forms of wastewater consist of both organic and inorganic contaminants: Solids that can settle out, suspended solids (cloudy water), and dissolved components.

Wastewater Treatment Inorganic contaminants are usually handled with physical and chemical processes: Settling – gravity working for you Filtration – screens, skimmers, etc. Special equipment & chemicals Oil/water separators Dissolved air floatation (DAF) systems Polymers & floculants

Wastewater Treatment Biological treatment processes focus on the organic content in wastewater. Microscopic organisms (bacteria) degrade dissolved organic compounds rapidly to generate energy and build new bacteria. Excess organic loading can result in too much accumulated activated sludge.

Wastewater Treatment Substantial contact time is required for bacteria to degrade organic matter. Bacteria can rapidly degrade dissolved contaminants in water. Solids are degraded more slowly over time.

Bacteria Three types – Anaerobic – Slow and smelly (H2S and CH4). Aerobic – Prolific, efficient and clean (CO2 and H2O). Facultative – can be either aerobic or anaerobic.

Optimize Organic Degradation Tilt the balance of microbial activity toward Aerobic digestion. Achieved through optimization of Oxygen Transfer Potential. Utilize Aeration technologies.

Aeration How is VBTTM different?

Aeration - Methods Many are only mixers or circulators. True aeration introduces bubbles into water.

Forced Air Bubble Formation Compressed air diffusers and Venturi systems all create bubbles with internal pressures greater than external pressures in the water column.

Vacuum Bubble® Formation VBTTM patented bubble production creates bubbles with internal pressure slightly less than external pressure of the water column.

Vacuum Bubble® Formation VBTTM bubbles shrink until reaching equilibrium. VBTTM bubbles stay in the water for several minutes.

Bubble Sizes One 20mm Bubble = Surface Area – 12.6cm2 Total Surface Area – 84cm2 6x greater than 20mm Bubble - 500,000 0.25mm Bubble Total Surface Area – 1000cm2 80x greater than 20mm Bubble 12x greater than 3mm Bubble

Bubble Size and Aeration Time: Size: Movement: Bubbles stay in the water for minutes Size: Smaller bubble size = greater surface area Movement: Bubbles move sideways by diffusion