Effect of dissolved ozone on the passive behavior of heat exchanger structural materials. Biocidal efficacy on bacterial biofilms
Book
·
OSTI ID:128666
- Univ. of La Plata (Argentina). Bioelectrochemistry Section
- Grace Dearborn, Sao Paulo (Brazil)
The effect of dissolved ozone on heat exchanger structural materials (carbon steel, stainless steel, copper and 70:30 copper nickel) has been studied in laboratory experiments, within the concentration range of 0.1--1.0 ppm. The biocidal efficacy of ozone on planktonic and sessile growth of Pseudomonas fluorescens was studied in quiescent and flow conditions. Ozone was able to kill the total number of planktonic bacteria in synthetic cooling water. However, ozone is only capable of inducing a partial reduction of bacterial numbers in the case of sessile bacteria. The electrochemical behavior of copper and 70:30 copper nickel is studied through voltamperometric and corrosion potential vs. time measurements. Dissolved ozone would be able to modify the structure of the oxide layer. The electrochemical behavior of carbon steel and stainless steel in ozonated solutions of similar concentrations is also analyzed.
- OSTI ID:
- 128666
- Report Number(s):
- CONF-950304--
- Country of Publication:
- United States
- Language:
- English
Similar Records
The effect of ozonated cooling water on the corrosion behavior of stainless steel, titanium and copper alloys. Ozone biocidal action on sessile and planktonic bacteria
A comparison of the action of various biocides on corrosive biofilms
Combined action of oxidizing biocides for controlling biofilms and MIC
Conference
·
Sun Oct 31 23:00:00 EST 1999
·
OSTI ID:696951
A comparison of the action of various biocides on corrosive biofilms
Book
·
Sat Nov 30 23:00:00 EST 1996
·
OSTI ID:397842
Combined action of oxidizing biocides for controlling biofilms and MIC
Book
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:80052