Kuh Kai Sludge Mixing Aerator ®
Low-Cost Sludge Aeration
wastewater treatment through efficient oxygen transfer and flow mixing.
Kuh Kai ®: Patented Sludge Mixing Aerator for Wastewater Treatment
What is Kuh Kai Aerator®
Patented pentagon-shaped aerator for efficient oxygen transfer and sludge mixing
Kuh Kai Aerator® is a patented, clog-free aerator that utilizes a unique pentagonal flow design to mix air and sludge into fine particles, enhancing oxygen transfer and accelerating wastewater purification. It delivers reliable and energy-efficient performance across various aeration and treatment systems, including:
- Up to 40% lower power use with low-pressure, energy-saving design
- High oxygen transfer and active sludge flow to prevent buildup
- No clogging due to the large 80 × 130 mm pentagonal opening
- Durable and maintenance-free structure made of stainless steel and molded resin
Mechanism of Kuh Kai® Aerator
Kuh Kai uses a pentagonal air-lift system that mixes sludge and air within a pentagonal cylinder. Internal collision plates generate turbulence and rotation to maintain circulation and prevent sludge buildup. The mechanism follows four main steps:
Air Injection – Air enters through the air inlet tube, forming a rising jet inside the cylinder.
Sludge Suction – The upward stream creates an air-lift effect, drawing sludge from the bottom.
Collision & Mixing – Collision plates generate turbulence, mixing air, water, and sludge.
Circulation – The mixture flows upward and outward, establishing a self-sustaining circulating flow throughout the tank.
Kuh Kai® vs. Conventional Air Diffusers and Mechanical Aerators
Most conventional aerators—such as fine bubble diffusers and mechanical surface aerators—suffer from clogging, uneven air distribution, and rapid efficiency loss in actual wastewater. In contrast, the Kuh Kai Aerator® applies a pentagon air-lift mixing system that keeps the interior self-cleaning through continuous circulation and turbulence.
Case Studies：Proven Results in Food Industry Wastewater Treatmen
Real-world case studies show how the Kuh Kai Aerator® provides a clog-free, energy-efficient aeration solution that eliminates common wastewater treatment issues such as diffuser clogging, odor generation, and high power consumption. The following examples from food industry wastewater treatment plants demonstrate remarkable BOD and COD reduction, sludge volume minimization, and significant energy savings compared to conventional diffusers.
Food Industry (Ham Processing) Wastewater
KUH KAI installed to prevent odor and sludge accumulation (600 m³/day)
Food Industry (Freezing Process) Wastewater
KUH KAI introduced to replace deteriorated diffusers (100 m³/day)
