Renewal of dosing plant (Aquaduin).

Purpose

Reliable and flexible dosing of antiscalant and sodium bisulfite, without interrupting production.

Problem-solution

At Aquaduin (Torreele site), effluent water is converted into infiltration water via reverse osmosis. Accurate and reliable dosing of chemicals is crucial in this process:

• Antiscalant prevents limescale deposits on the RO membranes
• Sodium bisulfite neutralizes free chlorine before the water reaches the membranes

The existing dosing installation was outdated. Aquaduin wanted to switch to a future-proof installation that could dose two products in parallel while increasing operational reliability and safety.

The solution

We opted for a phased approach to avoid plant downtime. First, we built the new plant from scratch, then the old one was decommissioned and removed.

Our scope:

• Complete renovation from suction to injection point
• New pump cabinets with integrated instrumentation: pumps, pulsation dampers, flow switch, overflow and pressure relief valves.
• Double-walled flexible pipes for extra safety and visual leak detection
• Welded stainless steel line up to the injection point
• All preparations were carried out in our shop, with minimal installation time on site