Zentec: Engineering the Future of Water Treatment

We are dedicated to providing innovative waste water treatment solutions that help you achieve your goals.

Get in Touch

Zentec is redefining waste water treatment specialising in surface aerators.

We combine deep expertise in mechanical engineering, backed by research and test work, Computational Fluid Dynamics (CFD), Finite Element Analysis (FEA), modern machining, and in-house fabrication. We design and manufacture modern, efficient and optimised aerators.

Our mission is to help our customers achieve better water treatment performance with lower energy use, less maintenance and superior reliability. We work closely with plant operators and engineers to understand their specific challenges and deliver tailored solutions that add measurable value.

Our flagship innovation is the Thrasher surface aerator which delivers exceptional oxygen transfer and mixing efficiency. Its impeller was engineered to displace large volumes of water and introduce powerful churning and recirculation into the basin to dramatically improve oxygen mass transfer and aeration. The impeller efficiency was tested according to ASCE[2-06] to confirm performance.

aeration basin waste water treatment wwtp wwtw

Our Products

Low Speed Aerator

Low speed vertical shaft aerator

Zentec's Thrasher Low Speed Surface Aerator is a vertical shaft aerator which provides efficient oxygen transfer and thorough mixing crucial for effective biological wastewater treatment and healthy biological material and bacteria growth.

Explore Low Speed Aerators

High Speed Aerator

High speed surface aerator

Introducing our High Speed Floating Surface Aerator, engineered to boost wastewater treatment efficiency. Its powerful design delivers optimal oxygen transfer, improving water quality across a range of treatment applications. Ideally suited for oxidation ponds.​

Explore High Speed Aerators

Floating Low Speed Aerator

Floating low speed surface aerator with pontoon

Our Floating Low Speed Surface Aerator is designed for wastewater treatment applications where efficient aeration and robust construction are critical. It is ideal for use in oxidation ditches, lagoons, and activated sludge processes where additional aeration is required, but there is no available platform for a fixed unit.

Explore Floating Aerators

Ready to get started?

Contact us today to discuss your waste water aeration needs and learn how we can help.

Get in Touch