Let nature's own microorganisms do the work. Biological water treatment breaks down oil, soap residue and organic matter in your recycled water — continuously, odour-free and with minimal chemical use.
Biological water treatment uses naturally occurring bacteria to break down organic pollution. The bacteria live on a large surface area — typically moving plastic media (MBBR) or a fixed carrier bed — and convert oil, surfactants and dissolved organic matter into water, CO₂ and new biomass. It needs oxygen, so the water is aerated. The result is a stable, self-running biology that purifies around the clock without large amounts of chemicals.
The bacteria do the work — you save on dosing chemicals and reduce the volume of sludge to be disposed of.
Correctly aerated biology keeps the water aerobic, so hydrogen sulphide and rotten odours are avoided — also in closed recycling systems.
Less chemistry, less sludge and more recycled water means lower fresh- and waste-water consumption over time.
From dirty recycled water to clear, odour-free water — in four steps.
Sand, sludge and free oil are removed mechanically, so the biology only handles the dissolved organic load.
In the aerated reactor, the bacteria break down oil, soap and organic matter while growing as biofilm on the media.
Excess biomass is separated from the water by settling or filtration, leaving the treated water clear.
The clean water is returned to the process — e.g. the wash bay — closing the loop with minimal waste.
Biology is strong where the pollution is organic and the flow is stable.
Soap, wax and road film are organic — perfect food for the biology in a closed wash-water loop.
Food, cleaning and process industry with high levels of dissolved organic matter (COD/BOD).
Where standing recycled water starts to smell, actively aerated biology keeps the water fresh.
Biology thrives best with steady load — ideal for plants running every day, all year.
If you want to cut dosing chemicals and sludge volume, biology shifts much of the treatment away from chemicals.
Biology works well with flocculation upstream and HydroFLOW® or filtration downstream — we compose the treatment train.
Tell me about your process and your challenges, and I'll assess whether biological treatment — alone or combined — is right for you.
Contact meTell us briefly about your project or water-quality challenge — and we'll come back with a non-binding assessment within 1–2 working days.