Inhibition of hard scale in boilers, and the action of static charges upon colloids
✍ Scribed by Willey, E. J. B.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1946
- Weight
- 532 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0368-4075
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✦ Synopsis
Abstract
It is shown that a good case can be made out for a common modus operandi in two methods claimed to give remarkable results in the treatment of feedwater, the first involving an electrode system through which the water circulates under a field of a few milli‐volts, and the second an assembly of glass bulbs containing mercury where static charges develop externally as the mercury is caused to move about by the How of water. The reaction seems to involvo colloids present, these being enabled to undergo strong adsorption at the surface of nascent crystals and, although present in very small amounts, give rise to development of other crystalline forms that normally appear only when large amounts of “boiler fluids” arc used in absence of either of these devices. Static chargesseem able to exert a profound influence upon the rate of reaction of one colloid with another, positive sols being made more reactive towards negative forms, and conversely.