Hydrodynamic Diffusers

Fine Bubble Diffusers

Gasion aerators provides microbubble generating diffusers for the wastewater aeration market

Hydrodynamic Diffusers

Fine Bubble Diffusers

Gasion aerators provides microbubble generating diffusers for the wastewater aeration market

Wastewater Treatment

Watewater Treatment

Wastewater treatment yields a range of invaluable benefits for both the city and its residents. Firstly, it helps safeguard public health by preventing the spread of waterborne diseases through the removal of harmful pathogens and pollutants. Secondly, treated wastewater can be reclaimed for non-potable purposes like irrigation and industrial processes, mitigating water scarcity challenges. Additionally, proper treatment reduces the pollution of water bodies, preserving aquatic ecosystems and promoting biodiversity. Moreover, adhering to wastewater treatment in can enhance its environmental image, attract investment, and support sustainable urban development. Lastly, the reduction of untreated wastewater discharge into streets and water bodies contributes to improved aesthetics and a higher quality of life for residents.

Construction and Operation

The Gasion hydrodynamic mixers are constructed of engineering plastics and can be used as high volume air diffusers. Compressed air enters at the bottom of the diffuser assembly through an ejector device creating vacuum which draws in large amount of water through the aerator body. The water and air mixture gets mixed thoroughly in a vane type arrangement and then the air is fractured into micro bubbles in a set of mushroom type bubble breaker device which forcibly dissolve oxygen into water. Circulating flows are formed by powerful upward air flows which evenly churn the entire tank resulting in high agitation and oxygen transfer. Volume of activated sludge sucked into the aerator is about 1.3 times than the air supplied because of strong negative pressure created in the ejector assembly.Air discharge opening is about 30mm and so operated without any clogging issues even in liquid with large particles.

Construction and Operation of Fine Bubble Diffusers

Comparison of Gasion Aerator & Fine Pore Diffusers

Gasion Aerator Substitutes fine pore diffuser more effectively

Technical comparison proves the superiority of hydrodynamic aerators more durable, more efficient and easy installation

GASION AERATOR		FINE PORE DIFFUSERS
LARGE AIR OPENING (About 30 mm )	BASIC STRUCTURE	FINE AIR OPENING ( Few hundred microns )
SPIRAL FLOW MIXING	MECHANISM	LAMINAR FLOW WITHOUT MIXING
MICRO SIZED BUBBLES	BUBBLE SIZE	MILLIMETER SIZED BUBBLES
1.0 SAME OTR IN CLEAN AND WASTEWATER	ALPHA VALUE	APPROX 0.4 TO 0.6 ONLY ABOUT 50% OTR IN WASTEWATER
NEVER	CLOGGING	FREQUENT - NEEDS SHUT DOWN , CHEMICAL CLEANING
CONSTANT	EFFICIENCY	DECREASES ON OPERATION
> 20 YEARS	PRODUCT LIFE	LESS THAN 2 YEARS
FEW DIFFUSERS PER UNIT AREA….ONE TENTH COMPARED TO CONVENTIONAL DIFFUSER	QUANTITY	MANY DIFFUSERS PER UNIT AREA
CAN OPERATE AT HIGH MLSS ( ABOUT 50000 TO 60000 MG/LIT )	ACTIVATED SLUDGE	CLOGS FREQUENTLY IN MLSS ABOVE 5000 MG/LIT
NO DRAINING OF TANKS ALSO INSTALLED AND ACCESSED FROM TOP	INSTALLATION	TANK TO BE EMPTIED FOR INSTALLATION AND ACCESSED ONLY AT FLOOR
NO ANCHORING - AIR FORCE PRESSES THE DIFFUSER	FIXING	STRONG AND MANY ANCHORING TO FLOOR NEEDED

Micro Bubble Diffuser

Size of the bubbles can drastically influence the oxygen transfer efficiency in the aeration system.

Smaller bubbles increase OTR exponentially
Gasion aerator generates micro bubbles with low rising velocity and high surface area.

Gasion hydrodynamic aerators produce millions of bubbles in micron sizes which have much larger surface area, compared to millimetre bubbles of diffused aerators. The size is so minute that it cannot travel up to the surface in a straight path. The very low buoyancy of the micro bubbles creates zig-zag path of bubbles moving horizontally more than the vertical distance. This increases the residence time of these bubbles in liquid drastically. The figure illustrates and compares the air bubble size and rising phenomenon of millimetre and micron sized bubbles. It could be noted that millimetre sized bubbles travel up and burst outside on the surface. But the Gasion micron sized bubbles burst inside the liquid itself as it takes much longer before it reaches the top. This bubble burst in liquid accounts for very high OTR of the Gasion Aerators.

Micro Bubble Diffuser / Nano Bubble Diffuser

Multiple Parts of Fine Bubble Diffusers

Multiple Parts

Multiple precision parts make an efficient aerator assembly

Gasion hydrodynamic aerators are constructed of multiple injected moulded parts assembled together to form an high performance aerator. Each of the part is carefully designed, connected aligned to provide a durable structure which should last many years.Supplied as an unit which can be readily used in the aeration tanks.

Constant OTR

Conventional rubber diffusers slowly decreases in OTR as it clogs and need periodical cleaning and downtimes. It needs complete replacement in less than 2 years in most cases.

Gasion hydrodynamic aerator OTR remains the same through out its lifetime .

Constant OTR - Fine Bubble Diffuser Performance

Air Flow - Fine Bubble Diffusers

Air Flow

Gasion hydronamic diffusers have an air flow rate capabilities of more than 100 cum/hr per unit against 10 cum /hr of tube diffusers and 5 cum/hr of disc diffusers. One Gasion diffuser can replace 10 tube diffuser or 20 disc diffuser which reduces piping complications for Air grid drastically.

Gasion Solution in
Wastewater Treatment

Gasion, since its inception, has maintained a technology-driven approach, constantly seeking innovative processes and equipment within the wastewater engineering field. It underwent a significant transformation when the industry’s focus shifted from “Treatment for discharge” to “Treatment for reuse” with zero discharge.

In recent developments, Gasion has established an R&D center in India, focusing on the development of highly efficient aeration systems, a critical area in wastewater treatment. Through unwavering dedication, Gasion has introduced four novel aeration technologies with global patents, applicable to both wastewater treatment and the revitalization of polluted water bodies. These advancements underscore Gasion’s commitment to pushing the boundaries of wastewater engineering and environmental sustainability.

Certifications

QHSE Quality Health Safety Environmental Code Certification

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Employees

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Zero liquid discharge plants

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Hydrodynamic Diffusers

Fine Bubble Diffusers

Gasion aerators provides microbubble generating diffusers for the wastewater aeration market

Hydrodynamic Diffusers

Fine Bubble Diffusers

Gasion aerators provides microbubble generating diffusers for the wastewater aeration market

Wastewater Treatment