Cooling Tower Cleans & Inspections

Deba UK Ltd Cooling Tower Engineering & Water Hygiene

COOLING TOWER ENGINEERING • WATER TREATMENT • WATER HYGIENE

Deba UK Ltd

Unit 15, The Metro Centre

Toutley Road, Wokingham

Berkshire RG41 1QW

Tel: 01189 892 444

Fax: 01189 892 445

Email: sales@debaltd.co.uk

Cooling Tower Inspection & Clean

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.

Scale in pack

Scale in pack

Air inlet panel

Air inlet panel

Scale out of bottom layer of pack

Scale out of one air inlet panel

Floor before clean

Scale from pack

Floor before clean

Floor after bagging scale

Splash guard before clean

Splash guard after clean

Roof after clean

Roof before clean

One old grommet, one new grommet

Spray nozzles - one new, one old

Blocked nozzle

Cooling Tower Surveys

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.

Above: Green slime and sediment in the cooling towers

Below: Sediment and slime in the pack

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.

Cooling Tower Deep Clean

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

Fill pack and spray bars after clean

Scaled fill pack before clean

Fill pack after clean

Tower internal before clean

Tower internal after clean

Cooling Tower Deep Clean

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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Slime in the pack prior to clean

Foam and slime in the sump prior to clean

Fouled sump prior to clean

Slime on the basin prior to clean

Foam and slime in the sump prior to clean

Sump following clean

Pack following clean

Cooling Tower Inspections & Cleans

During cooling tower inspections, we found a large build up of scale throughout towers, dirty and collapsing air inlets, corrosion in drift eliminator frames, brittle drift eliminators and collapsing supports.