ENG Designs - Large Bubble Mixing
Anoxic mixing, Increase DO efficiency, MBBR agitation, Solids suspension.
Simply add a blower or connect to plant air.
The "Aha!" Moment That Changed Mixing
It all started with a meeting and a healthy dose of skepticism. When I, a mechanical engineer, first encountered the creator and his bubble mixing technology, my initial reaction was, "Just another gimmick?" After all, we've seen it before – coarse air, jets, impellers... how could this be any different?
But something about it stuck with me. So, I did what any engineer would do: I dug in. I started developing thermodynamic and physics equations to truly understand the power of bubbles. And what I discovered was astonishing.
Bigger Bubbles, Bigger Impact
Turns out, the size of the bubble matters... a lot. Our flagship Hydra-Bubble mixer, with its 1.5 cubic foot bubbles, delivers 10 times the mixing power of the same volume of air split into tiny bubbles (coarse bubble mixing). That's a game-changer!
Why This Matters to You
- Massive Energy Savings: Think 10x less blower power compared to traditional fine/coarse bubble systems.
- Simplified Systems: Say goodbye to complex high-pressure setups with their compressors, storage tanks, valves and control systems. Hydra-Bubble utilizes a simple main pipe with branches, just like a diffuser network.
- Slash Operating Costs: Experience up to 50% cost savings compared to high-pressure systems, plus dramatically reduced maintenance with no submerged moving parts.
- Sustainable Solution: Often, you can even use existing plant air, minimizing additional energy consumption.
Ready to Dive Deeper?
Explore the Science: It's Not Just About Bubbles
You might be thinking, "A bubble is a bubble, right?" While that's partially true, there's more to the story.
Hydra-Bubble does more than just create bubbles. Our specially designed units generate high velocities as the bubbles are released, creating a lifting and scouring action along the tank floor. This helps prevent sediment buildup and ensures thorough mixing throughout the entire water column.
Busting the High-Pressure Myth
Many assume that high-pressure air systems "blow" sediment off the tank floor. However, this isn't the case. The moment air exits the high-pressure diffuser, it's at the same pressure as any other bubble in the tank. We do not want to discount the high pressure bubble, we do partner up to help special situations get proper mixing.
We have videos demonstrating sediment motion with plate-style bubble generators. You'll see that they primarily create bubbles, and debris may even move towards the generator, not away from it.
Hydra-Bubble's unique design, backed by physics and proven results, provides superior mixing and floor cleaning compared to traditional high-pressure systems as well as coarse bubble mixing systems. The coarse bubble mixing consumes massive amounts of air comparatively.
Anoxic Mixing Mastered
Hydra-Bubble excels at anoxic mixing. Why? Because the smaller surface area of our large bubbles minimizes unwanted oxygen transfer. This makes it ideal for applications like selector tanks where maintaining anoxic conditions is crucial.
The Perfect Pairing: Big Bubbles and Fine Bubbles
But Hydra-Bubble doesn't stop at anoxic mixing. It's also the perfect complement to fine bubble aeration systems.
Imagine this:
- MBBR Optimization: Big bubbles handle the heavy lifting of media mixing, while fine bubbles deliver precise oxygen levels to microorganisms. This dynamic duo ensures optimal treatment efficiency.
- DO Efficiency Supercharged: The powerful vortices and down currents created by Hydra-Bubble extend the contact time of fine bubbles in the water column. This means more oxygen transfer and significant energy savings on your aeration blowers. We're talking potential savings of 10% to 50%!
The Hydra-Bubble Advantage:
- Versatile Mixing: Excels in both anoxic and aerobic environments.
- Enhanced Treatment: Optimizes MBBR performance and DO efficiency.
- Cost-Effective: Reduces energy consumption and operating costs.
Partner with Us
We're actively seeking partners to bring this innovative technology to more wastewater treatment plants. If you're ready to offer your clients a truly cost-effective and sustainable mixing solution, contact us today!
Some of our projects
- August 2019 – Wexco environmental – 12 units, for stock in small MBBR plants
- June 2020 – Lac Du Flambeau Indian reservation 23 units MBBR Mixing
- May 2021 – New York – 1 unit, wet well mixing ballasted unit
- Biofuel blending (HDPE units) Hungary, 8 units, July 2021 (22m diameter, 12m depth)
- January 2024, 3 units, EQ tank mixing OH, USA.
- August 2021, 12 units, anoxic mixing WI
- December 2021, 3 units, supplemental MBBR mixing/scouring, IN June
- Cheese plant small anoxic selector, WI. 2 units, selector tank January 2022
- November 2022 (install June 2024) – 7 units, 39 ft selector tank, Texas
- January 2023 – 6 Units 30 ft deep selector tank
- December 2023 1 unit MBBR supplemental mixing, shipping this week.
- January 2024, 3 units, EQ tank mixing OH, USA.
- 8 units, EQ tank mixing Texas, USA
The More You Know
Articles and papers
"You don’ have to take our word for it."
- Search TPOMAG for articles about large bubble mixing. There are papers written that boast a 46% increase in energy efficiency for Large-bubble mixing over mechanical mixing. Large bubble mixing has no moving parts as well as no bearings to grease or replace). There are also articles relating to large bubbles not being an oxygen transfer source.
- Hazen Sawyer has an article discussing BNR performance that is very interesting. Search for big bubble mixing.
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- ENG Designs, our large bubble mixing technology synergizes with fine bubble aeration and enhances oxygen transfer. The large bubble creates vertical convection currents which pull fine bubbles down, increasing residence time, thus boosting oxygen transfer efficiency. This can lead to a remarkable reduction—up to 50%—in supply aeration requirements.
- Additionally, our large bubble mixers are designed to efficiently lift sediment off the tank floor, surpassing the capabilities of coarse bubble aeration and other large bubble mixing methods. This vertical mixing is highly effective for both anoxic and aerobic processes, translating to significant cost savings for your facility, often within just 9 months savings pay back.
- For More Information, See the DOCUMENTS Page
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ENG Designs LLC is a flexible project based company that is goal oriented. We are fully committed to meeting or beating timelines that can make or break a project.
Contact us today!
ENG Designs LLC.
1911 S Allis St.
Milwaukee, WI, 53207