Cooling Tower Projects

Deba UK Ltd Cooling Tower Engineering & Water Hygiene

COOLING TOWER ENGINEERING • WATER TREATMENT • WATER HYGIENE

Slime in the pack prior to clean

Foam and slime in the sump prior to clean

Fouled sump prior to clean

Foam and slime in the sump prior to clean

Slime on the basin prior to clean

Sump following clean

Cooling Tower Deep Clean, Spring 2009

This cooling tower was extremely fouled with gelatinous deposits. The pack, air inlet panels and drift eliminators were removed and pressure washed to remove all of the deposits. The tower sumps were vacuumed out and all internal surfaces were washed. We then replaced the clean tower pack infill, the drift eliminators and the air inlet panels for each cell.

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Cooling Tower Deep Clean, June 2009

This cooling tower was generally in a satisfactory condition. Scale was removed with the aid of pressurised water and a scouring pad, and the fill pack was removed and cleaned with a mild acid solution to remove the scale. The pond was cleaned using a submersible pump and vacuum to remove sediment and scale.

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Tower wall before clean

Tower wall after clean

Pond before clean

Pond after clean

Fill pack and spray bars before clean

Scaled fill pack before clean

Fill pack and spray bars after clean

Fill pack after clean

Tower internal before clean

Tower internal after clean

Pack following clean

Cooling Tower Refurbishment, July 2009

Deba has been working on a project to refurbish cooling towers, including re-lining the ponds, tongue and groove GRP panelling, and laying a new floor around the towers.

Cooling Tower Surveys, April 2010

During a recent cooling tower survey, we found a huge build up of slime in the cooling towers which can harbour and provide nutrients for Legionella bacteria.

We recommended that the Legionella risk assessment and the water treatment programme be reviewed as a matter of urgency as we feel that the towers present a considerable risk at the moment. This was further compounded by the fact that the towers were observed to have large amounts of drift coming from the fan area whilst in operation. As a precaution we recommended that the towers be cleaned every 3 months until the conditions are improved and the source of the slime has been identified.

Above: Green slime and sediment in the cooling towers

Below: Sediment and slime in the pack

Cooling Tower Inspection & Clean, April 2010

During a recent cooling tower inspection, we found a large build up of scale throughout the tower. We submitted a detailed report to the client complete with comprehensive photographic support.