Drug – bio-affecting and body treating compositions – Inorganic active ingredient containing – Elemental chlorine or elemental chlorine releasing inorganic...
Patent
1995-06-07
1997-09-02
Weddington, Kevin E.
Drug, bio-affecting and body treating compositions
Inorganic active ingredient containing
Elemental chlorine or elemental chlorine releasing inorganic...
514241, 514247, 514387, 514389, 514401, 514402, A01N 5908
Patent
active
056629400
ABSTRACT:
Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum of all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20. In addition, a bromine volatilization suppressant may be introduced into the recirculating water to inhibit loss of bromide ion through volatilization of bromine containing species formed by reaction of the hypochlorite donor and the bromide ion donor. One or more scale inhibitors and compacting aids may also be added.
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Hight Terry V. T.
Kuechler Thomas C.
Matson Jack V.
Rakestraw Lawrence F.
Zhang Zhihe
University of Houston
Weddington Kevin E.
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