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Active Sludge Reduction

This unique technology uses ozone to penetrate the cell wall of bacteria in part of the return sludge to release the lyses out into the water and then consumed by other bacteria in aeration basin. This process increases the self-degradation speed and mortality of bacteria in aerobic process thus to reduce the amount of activated sludge 30~60% and greatly improve the settling performance in second clarifier.



We offer an integrated system including zone generator, pump skid, reactor, control system as well gas supply station to meet customers’specific requirements of active sludge reduction.


Air Liquide’s water treatment specialists will evaluate your specific site and design a solution that uniquely meets your needs.

Why choose us?

  • 01

    All in one solution

    Innovative and efficient solutions help customer with system design, equipment, gas supply and professional expertise all in together.

  • 02


    Unique production technologies and ISO-accredited facilities ensure product reliability.

  • 03

    Industry experts

    With proven industry knowledge, we can advise on enhancing performance and efficiency in gas use for treatment of water and air emission.

  • 04

    R&D support network

    We rely on our global network of application experts, engineering and research and development teams to provide the optimum solution for a given need.

  • 05

    Compliance experts

    Import Scott™ brand EPA protocol gas mixtures from Air Liquide to provide the highest levels of performance, reliability and confidence for meeting EPA environmental compliance regulations.