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Activated sludge lane foaming over the diffuser grid in golden evening light

Water & Wastewater

Aeration and process air for treatment works: efficient, compliant and supported around the clock.

Aeration is your biggest power bill. We treat it that way.

Blowers sit at the heart of every treatment works: aeration lanes, sludge digestion, filter backwash. When they run badly the power bill climbs, and when they stop the process is at risk within hours. SYG keeps that air moving, with servicing, repairs, hire and replacement across all makes and models.

Our engineers have spent years on treatment sites, from small package works to large regional plants. We know the duty cycles, the consent pressures and the access headaches. You get a straight answer from someone who has stood next to your kind of blower before, whoever built it.

Common challenges we help with

The problems below turn up on almost every works we visit. All of them are fixable.

  • Energy cost of aeration: aeration can be more than half of a works power spend. Surveys and right-sizing bring it down.
  • Compliance pressure: consent limits don't wait for a convenient failure. Reliable air keeps the process inside them.
  • Ageing plant: plenty of works run blowers that are decades old. We keep them alive, or plan the replacement properly.
  • Unplanned downtime: a failed aeration blower is an emergency. Hire units and fast repairs close the gap.

What better air handling is worth

Where we typically make the difference on a works:

  • Lower energy use: modern machines and correct sizing routinely cut aeration power by double digits.
  • Fewer failures: planned servicing catches bearings, seals and filters before they take a lane down.
  • Faster recovery: mobile hire units on site quickly when something does let go.
  • One supplier: servicing, repairs, spares, hire and new packages from a single phone number.
  • Independent advice: we recommend the machine that suits the duty, not a preferred badge.

Where our equipment works on site

Typical duties across water and wastewater treatment:

  • Aeration lanes: steady, efficient process air for activated sludge treatment.
  • Sludge digestion: gas mixing and aeration duty for digesters and holding tanks.
  • Filter backwash: air scour for media filters, delivered on demand.
  • Grit and grease removal: coarse bubble air for primary treatment stages.
  • SBR plants: cyclical aeration matched to batch treatment stages.
  • Odour control: extraction and treatment air for covered tanks and buildings.
  • General process air: instrument and process duties around the works.
  • Package plants: compact, quiet blowers for small and remote works.

Kit we specify for treatment works

From single replacement machines to complete aeration upgrades, the range covers every air duty on a treatment works.

Every recommendation is backed by servicing, spares and hire support for the life of the machine.

Aerzen turbo blower package with stainless discharge pipework and bellows

High-efficiency aeration duty

  • Cuts aeration energy on continuous duty
  • Low noise and low maintenance running
  • Sized against real process data
New packaged blower skid with control cabinet in the workshop

Complete installed aeration sets

  • Enclosure, silencers and controls included
  • Matched to your existing pipework
  • Commissioned and handed over running

View the full range

Browse the full range, or tell us your duty and we'll shortlist for you.

Row of blue packaged blowers receding down a newly built blower hall

Need help choosing or fixing a blower?

Straight answers on sizing, faults and replacements, from engineers who work on every make.