| 摘要 |
A cooling water circulation apparatus capable of limiting attachment of microorganisms and scale in an environmentally friendly manner and a method of removing scale in the cooling water circulation apparatus. An electrolytic device 10 is provided on a cooling water circulation route R 1 . In the arrangement, mineral contents such as calcium ions and magnesium ions contained in cooling water W are deposited as scale S on an electrode 12 A or 12 B in an electrolytic step, thereby enabling the mineral contents to be removed from the cooling water W. Even if the hardness of the cooling water W is increased by evaporation of the water with elapse of time, the hardness can be reduced by the electrolytic processing. Thus, the deposition of the scale S in the circulation route R 1 can be reduced. Further, the scale S deposited on the electrode 12 A or 12 B can be easily separated by operating while reversing the polarities of the electrodes 12 A and 12 B at predetermined time intervals.
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