ROTARY DISTRIBUTOR FOR BIOLOGICAL TRICKLING FILTERSWe manufacture rotary distributors for biological trickling filters, designed to distribute wastewater evenly over the surface of the filter media. We offer solutions for installations with different capacities – from small systems handling approximately 100 m³/day to distributors with a maximum flow rate of up to 5760 m³/day.
We manufacture the distributor structure from acid-resistant stainless steel and PC pipes. Depending on the required capacity and installation conditions, we select the wastewater feed arrangement and the size of the unit. The distributor diameter can be up to 12 m.
The rotary distributor is designed for use with high-rate biological trickling filters. Its primary function is to distribute wastewater evenly over the surface of the filter media so that the wastewater is spread across the largest possible area of the biological treatment section.
In larger units, wastewater is supplied through a vertical pipe with a diameter of D = 200 mm. This solution is intended for a basic flow rate of up to approximately 5000 m³/day. In small rotary distributors with a flow rate of up to 100 m³/day, wastewater is supplied through a horizontal pipe with a diameter of D = 75 mm.
Wastewater supplied to the unit passes through a distribution section into a rotating overflow chamber. After a slight increase in liquid level, the wastewater is directed into the distributor arms and then discharged through openings arranged along them.
Wastewater jets leaving the openings at the required velocity generate a reaction force that causes the entire distributor assembly to rotate. This allows the wastewater to be distributed continuously and evenly over the surface of the biological filter media.
We manufacture the distributor from materials suitable for operation in wastewater treatment plant conditions. The structure includes, among other components:
| Parameter | Value |
|---|---|
| Maximum flow rate Qmax | 5760 m³/day – 240 m³/h |
| Basic flow rate Q | 4320 m³/day – 180 m³/h |
| Distributor diameter | up to 12 m |
| Wastewater feed – larger units | D = 200 mm |
| Wastewater feed – small distributors | D = 75 mm |
| Flow rate of small distributors | up to 100 m³/day |
| Construction material | acid-resistant stainless steel and PC pipes |
We select the distributor size and wastewater feed arrangement according to the capacity of the installation and the diameter of the biological trickling filter. This allows the unit to be adapted both to small facilities and to larger process lines.
The rotary distributor can be supplied as part of the equipment for a new wastewater treatment plant or the modernisation of an existing facility, including as a replacement unit for an existing biological trickling filter system.
We can adapt the scope of supply to the customer’s requirements. In addition to manufacturing and delivering the rotary distributor, we can also integrate it into a newly designed or modernised wastewater treatment process line. If the final stage of the process requires additional effluent polishing, a separate solution may be a tertiary screen. The unit can be commissioned after installation.
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