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Ozone in dairy chilling water systems: effect on metal materials
Author(s) -
GREENE ANNEL K,
SMITH GEOFFREY W,
KNIGHT CHARLES S
Publication year - 1999
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.1999.tb02853.x
Subject(s) - ozone , copper , aluminium , carbon steel , metallurgy , scanning electron microscope , materials science , carbon fibers , metal , chemistry , corrosion , composite material , organic chemistry , composite number
The use of pulsed ozone as a disinfecting agent in chilling water systems will be feasible only if components of the systems are not adversely affected. Pulsing ozone into water at room temperature for 20 minutes per day for 7 days caused greater weight loss of aluminium, carbon steel, copper, 304 stainless steel and 316 stainless steel samples than control samples; however, only weight loss for carbon steel was significantly greater (α= .05). Severe pitting was noted on ozone treated copper samples when observed by scanning electron microscopy. Black striations were observed on ozone treated carbon steel surfaces.