Biological process

Wastewater treatment with microorganisms

The target of the biological process is to remove organic, biodegradable substances via the metabolism of microorganisms and related biochemical processes.

Doing this makes it possible to significantly reduce the final volume of sludge for treatment. Most treatment plants are designed to remove not only carbonaceous organic matter, but also nutrients, i.e. nitrogen and phosphorous. Sulzer aeration systems and the submersible mixer types ABS XRW and RW, along with the agitator type Scaba, are ideally suited to this stage of treatment, which is truly the core of the plant. The biological process is divided into three steps: an anaerobic step, an anoxic step and finally an aerobic step.

Wastewater treatment process - biological process

Products

  • Aerator type ABS Venturi jet
    Based on the ejector principle, the Venturi jet aerator is an ideal solution for water depths from 1.5 m to 5 m.

  • Disc diffuser system type ABS
    The reliable disk diffuser system is one of the world’s most widely-installed fine-bubble aeration systems, available in four alternative diffuser models.

  • Flow booster type ABS SB
    The reliable, energy efficient low-speed submersible unit can be used in a wide range of applications in wastewater treatment plants.

  • Flow booster type ABS XSB
    The complete answer to low-speed, highly energy efficient submersible mixing in a wide range of applications in industry and municipal treatment plants.

  • HST™ turbocompressor
    The modern and silent HST™ turbocompressor features an advanced design with proven magnetic bearing technology and a high-speed motor driven through a built-in frequency converter.

  • Scaba top mounted agitator
    Scaba top-mounted vertical agitators are used for mixing and agitating process liquids in many industries, including wastewater and industrial applications.

  • Submersible aerator mixer type ABS OKI
    The OKI submersible aerator is a heavy-duty, non-clogging, gentle mixing unit which can operate both as an aerator and as a mixer.

  • Submersible aerator type ABS XTA XTAK
    The XTA and XTAK are self-aspirating submersible aerators for wastewater and water treatment in municipal and industrial plants.

  • Submersible mixer type ABS RW
    The RW is Sulzer’s standard range of submersible mixers, economical without compromising on reliable design.

  • Submersible mixer type ABS XRW
    The XRW mixer range is Sulzer’s premium range of submersible mixers with outstanding life-cycle economy and superior reliability.

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