Method for preventing obstruction in aluminum brass pipes in a w

Details Method for preventing obstruction in aluminum brass pipes in a w Method for preventing obstruction in aluminum brass pipes in a w

1998-07-06

2000-08-22

Thornton, Krisanne

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

422 12, 422 13, 422 19, 422 28, 422 40, C23F 1100, C23F 1118

Patent

active

061067709

ABSTRACT:
A method for preventing obstruction in aluminum brass pipes in a water flow path, including the steps of continuously supplying iron ions or an iron ion supply compound to water in the water flow path in such a manner that a concentration of iron ions in the water is 0.005 to 0.05 mg/liter, and supplying hydrogen peroxide or a hydrogen peroxide supply compound for a period of time sufficient for preventing adhesion of organisms to the aluminum brass pipes but not impeditive to formation of corrosion-resistant coating inside the pipes, in such a manner that a concentration of hydrogen peroxide in the water is 0.1 to 1.5 mg/liter, whereby corrosion of aluminum brass pipes and adhesion of organisms to the pipes are prevented.

REFERENCES:
patent: 4860821 (1989-08-01), Hagewood
English Language Abstract of family member 54-161592, Dec. 21, 1979.
English Language Abstract of family member 60-106584, Dec. 06, 1985.
English Language Abstract of family member 59-098791, Jun. 7, 1984.
Themal Nuclear Electric Power Generation, vol. 24, No. 10, pp. 1145-1156, Oct. 1973.

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