HiGARD™ state-of-the-art Distributors are designed to provide even distribution of the influent across the full cross-sectional area of the trickling filter media bed.
Overview
For smaller trickling filters, typically between 5 and 12 metre diameter, Veolia Water Technologies can offer our MiniGARD™ Distributors which contain all the benefits of the HiGARD™.
Features
The system is designed to provide even distribution of the influent across the full cross-sectional area of the trickling filter media bed.
The distributors include a trapezoidal or rectangular cross-sectional arm profile with fully adjustable, large diameter non-clog orifices integrated into the top arm section to provide accurate adjustment for even distribution of the flow. The design also includes flow spreader plates to ensure a curtain wall flow regime is maintained over the complete flow range.
The distributor is designed for minimum maintenance with top-mounted long-life bearings and motor drive unit, maintenance-free internal seal-less weirs, stabiliser assemblies, automatic lubrication system and quick release flush gates on the end of each arm.
Available in Aluminium alloy, Stainless Steel or GMS.
Components
Each distributor includes the following components:
|
Component |
Feature |
|---|---|
|
Centre inlet column (stationary) |
Designed to withstand wind and eccentric loading on distributor arms |
|
Upper bearing assembly |
Located above wastewater elevation to avoid contamination and allow easy access. Lifespan of 10 years. |
|
Distributor drum (rotating) |
Sized to treat a variable inlet flow over a large range |
|
Distributor arms |
Includes wedge-tight, quick-opening clean out / flush gate at the end of each arm. |
|
Distribution orifices |
Inclined plate flow spreader plates ensure curtain wall flow regime over the design flow range. Large diameter non-clog overflow orifices. |
|
Variable speed drive unit and control system |
Optional |
