Biological Treatment Equipment
Built Water connects engineers and operators with in-depth equipment guides and local manufacturer reps. Understand your options, specify the right equipment, and make confident decisions.

Combines suspended and attached-growth bacteria in one aeration basin to boost treatment capacity without building new tanks.
Biological treatment using free-floating plastic carriers that support biofilm growth while circulating continuously through aerated or anoxic tanks.
Batch treatment system that performs biological treatment, settling, and decanting in one tank through timed operational cycles.
Vertical packed-bed reactors using biofilm and upward air flow to remove organics and ammonia from wastewater.
Activated sludge treatment with membrane filtration replacing clarifiers, producing high-quality effluent in compact footprints for municipal wastewater plants.
Biological filters that use bacteria and a carbon source to convert nitrate in drinking water into harmless nitrogen gas.
Rotating media discs that grow bacteria to treat wastewater through alternating submersion and air exposure cycles.
Fixed-film biological treatment system that removes organics and ammonia as wastewater trickles over media colonized with microorganisms.
Continuous-loop biological treatment system using mechanical aeration to remove organics and nutrients from municipal wastewater through extended contact time.
Gravity-driven sand filtration system that treats wastewater in periodic doses, allowing biological treatment between applications.
Closed-loop pumped circulation system that mixes chemicals vertically through a tank without mechanical mixers.