Romsey water and waste treatment works project

The joint venture between Black and Veatch and Costain is on schedule to complete a GBP8M project for Southern Water to upgrade Romsey WWTW, plus add a variety of pumping stations

The joint venture between Black and Veatch and Costain is on schedule to complete a GBP8M project for Southern Water to upgrade Romsey WWTW.

Part of the GBP120M of work being undertaken by the joint venture for the Southern Water K3 programme, the two-stream biological filter WWTW will have a maximum flow of 185 l/s to serve a population equivalent to 20,000.

It has to meet new discharge consents that include: 60/40 mg/l SS (winter/summer) 40/25 mg/l BOD (winter/summer); 8mg/l NH3 (summer only); P 1mg/l; Fe 2mg/l upper tier.

Due for completion in 2006, the improvement works include screens and a screenings handling plant, a ferric dosing plant, multi-tank tertiary treatment deep-bed sand filter and a primary settlement tank.

Black and Veatch and Costain, who are responsible for programme and project management, including environmental and consent documentation and obtaining of planning permission, are also introducing a variety of pumping stations.

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