How to Control Algae in Mining and Power Stations

Algae block screens and filters |pumping equipment|blockages|

Mining operations and power stations use, store and re-use water.

Blockages to screens and filters in pumping equipment pose a real

threat and increased costs.

Algae increase pumping costs |increased energy costs|water flow

The presence of algae in the stored water creates additional friction

which translates into increased energy costs in pumping. Experiments

with algae fouled water have recorded as much as a 10% water flow

reduction. When filamentous algae are present in the stored water the

reduction of water flow is even higher.

Algae prevention is possible | anticipated bloom|onset hot weather|

It is possible to prevent algae blooms by applying algae prior to an

anticipated bloom. e.g. onset of hot weather. Coptrol remains active

in the stored water until an algae bloom occurs and then goes to work

killing the bloom thus saving increased energy costs.

If algae is a problem in your water source follow this 5 step method to keep your waters clear and bright.

1. First identify the algae present. If you are not certain visit

www.algae.info. This site enables you to identify all the

common algae in Australia.

2. Now calculate the volume of water to treat. Ignore depths

below 1 metre. We have a page which explains the methods

used to determine the amount of water to treat. if you need

assistance see How to calculate the volume of water to treat

with Coptrol.

3. Next calculate the amount of Coptrol needed. An easy way to

calculate is:

a) If you are using run-off water from the environment.

• If the algae is fine and free floating use 2 mL of

Coptrol per 1000 Litres (1 cubic metre) of water. That

is equivalent to 2 Litres of Coptrol per 1000 square

metres of surface area.

• If the algae is long and stringy use 5 mL per 1000

litres of water (1 cubic metre) or 5 Litres per 1000

square metres of surface area.

b) If you are using treated effluent.

• use 5 – 10 mL of Coptrol per 1000 litres of water (1

cubic metre) or 5 – 10 Litres per megalitre of water.

4. Dilute the required amount of Coptrol using a 1:10 or even a

1:20 Coptrol water dilution.

5. The best application method is by spraying. Apply on a sunlit

wind free day when algae first appear. If this is impractical

look at our general recommendations.

If you still need help call RCI at no cost to you. Contact RCI where our free call numbers are displayed. Or you can email RCI using this form.

Coptrol Bibliography

Coptrol Frequently Asked Questions

Coptrol sales page

Coptrol Application rates

Coptrol and Environmental Safety

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