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Dakro Case Studies

Case Studies

Dakro Environmental Limited provides water treatment and air hygiene products and services, delivering nationwide through our regional distribution network.

Our core support services to clients with substantial property portfolios provides a management record system which spans all site water and ducted air services – but we go further.

Key personnel identify your immediate and ongoing site specific requirements, and tailor your management system to comply with legislation in tandem with your corporate objectives.

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Dakro Environmental Limited Case Studies

Case Study 1

Work Specification

Clean and Disinfection of Water Storage Tanks and Associated Down Services.

Details

The site has 1-No. Cold Water Storage Tank (on line) and 2-No. Domestic Hot Water Calorifiers.

Estimated System Volume

1-No. CWST = 8,000 Litres
2-No. DHW Calorifiers = 735 Litres Each
Total Estimated System Volume = 12,500 Litres

Methodology

Isolate, drain and clean Cold Water Storage Tank and dose with Bactisolve and flush through all hot and cold water system.

Estimated Water Loss using Bactisolve

13,470 Litres – Equivalent to 1-No. CWS Tank drain down plus flush through and drop in temperatures in Calorifiers.

Estimate Water Loss with usage of Chlorine

26,940 Litres – Equivalent of 2-No. complete system drain downs, as the initial flush of chlorine would require tank drain and flush through system following retention period the tank would be drained down again and whole system flushed through including initial drain down of hot water storage vessels.

Additional Notes

Less energy is used in draining down tanks In addition there would have been considerable water waste as 2-No. DHW Calorifiers would have been isolated and drained prior to the chlorination process (due to chlorine gassing off with the increased hot water temperature).

Pie Chart

Case Study 2

Work Specification

Clean and Disinfection of Water Storage Tanks and Associated Down Services.

Details

The site has 1-No. Cold Water Storage Tank (on line) and 1-No. Domestic Hot Water Calorifiers.

Estimated System Volume

1-No. CWST = 700 Litres
1-No. DHW Calorifiers = 180 Litres
Total Estimated System Volume = 1,144 Litres

Methodology

Isolate, drain and clean Cold Water Storage Tank and dose with Bactisolve and flush through all hot and cold water system.

Estimated Water Loss using Bactisolve

1,080 Litres – Equivalent of 1-No. CWS Tank drain down plus flush through and drop in temperatures in Calorifiers.

Estimate Water Loss with usage of Chlorine

2,640 Litres – Equivalent of 2-No. complete system drain downs, as the initial flush of chlorine would require tank drain and flush through system following retention period the tank would be drained down again and whole system flushed through including initial drain down of hot water storage vessels

Additional Notes

Less energy is used in draining down tanks. In addition there would have been considerable water waste as 1 off DHW Calorifiers would have been isolated and drained prior to the chlorination process (due to chlorine gassing off with the increased hot water temperature).

Pie Chart 2

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Dakro principles

Dakro Environmental manages its operations with concern for the Health and Safety of individuals, commitment to the delivery of quality service and products and the development of environmentally sustainable work practices and products.

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