Product Focus: Mixing and Aeration System

The HYPERCLASSIC®-Mixing and Aeration System is a mechanical aeration system that has been in use in industrial wastewater treatment plants for more than 20 years. With a unique combination of mixing and aeration system, INVENT provides the solution for the demanding tasks of aerobic wastewater treatment. Especially in the wastewater resulting from paper production, because of the specific characteristics of the components, all the problems in the aerobic process step are avoided: 

Oxygen is transferred through a ring sparger, which is installed leak-tight above the basin floor. This design ensures a high injection depth and long dwell time of the air bubbles. In addition, the large injection openings ensure many years of aeration operation with no blockages, loss of pressure or efficiency. 

The high injection efficiency or rather the ability to generate fine air bubbles is the result of stainless-steel ribs on the bottom of the mixer-body. During aeration operation, the mixer-body rotates continuously, producing very fine bubbles in the trail of the stainless-steel ribs. They are transferred and distributed laterally, radially into the basin with the mixer flow. 

The HYPERCLASSIC Mixing and Aeration System has been used in industrial wastewater for more than 20 yearsImages courtesy of Invent.

The HYPERCLASSIC also exhibits its high degree of flexibility when integrated into a wastewater treatment plant. All that is needed to operate each unit is an air and power connection. Each unit can feed an entire basin with up to 2,000 Nm³/h air. 

The HYPERCLASSIC can be delivered in a stainless-steel cage, thus making it easy to lift when needed without having to empty the aeration tank. Because of its own weight, it is safely positioned at the installation site. 

These unique characteristics have made the HYPERCLASSIC the industry standard in the field of aerobic treatment of paper wastewater over the recent decades. No matter whether the largest paper machine in Europe, the most state-of-the-art production plant in Europe or specialist manufacturers, each of them rely on the efficient, reliable and low-maintenance system from INVENT. 

In 2020, a total of twelve HYPERCLASSIC systems were installed in the Palm GmbH & Co.KG paper mill in Aalen, Germany. Each system distributes up to 1,800 Nm³/h at an injection depth of up to 11.5 m. The overall specification and the selection of materials meet the highest standard for use in the wastewater of a paper factory.

About Invent

INVENT Environmental Technologies Inc. develops, produces and distributes innovative mechanical equipment, process technology and plants for the treatment of water and wastewater.