Client: Filao
Field: wastewater treatment
Scope: connection of the DAF to an activated carbon silo, electrofusion-welded GF PE piping, bypass, commissioning
Background
Filao wanted to check how effectively its wastewater could be treated through an activated carbon silo installed downstream of the DAF (dissolved air flotation unit). This called for a test installation: quick to set up, reliable, and easy to remove to return to the original situation.
What we did
1. Pumping
A submersible pump was installed to feed the silo from the DAF.
2. Electrofusion-welded GF PE piping
The piping to the silo was installed in GF-brand polyethylene (PE) (GF Piping Systems). Fittings are joined by electrofusion with GF equipment: a method that gives tight, durable joints, with no glue or threads.
3. Return to the existing sewer
The return from the silo is routed to the existing sewer while keeping the current flow meter: discharge measurement is unchanged.
4. Bypass
A bypass was built so that the pre-test configuration can be restored at any time, without dismantling.
5. Commissioning
ITS filled the silo with water and started up the installation.
The GF electrofusion unit and the submersible pump.
The bypass and the return to the sewer: the original situation can be restored at any time.
Result
An operational test installation that lets Filao assess activated carbon treatment under real conditions. The existing flow meter still measures discharges, and the bypass guarantees a return to the initial situation with a few valve operations.
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