Articles
A Superior Biocide For Disinfecting Reverse Osmosis Systems
August 17, 2006
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•Technical Report: A Superior Biocide For Disinfecting Reverse Osmosis Systems
In an effort to determine the effectiveness of Minncare® as a sterilant compared to biocides traditionally recommended for use on reverse osmosis (RO) membranes and their associated water distribution systems, Minncare® Cold Sterilant, formaldehyde, bleach and hydrogen peroxide were tested for efficacy by an independent testing laboratory. The concentrations chosen for the test were those normally recommended for cleaning and sanitizing RO membranes and water systems. Survival curves were generated for each biocide against Bacillus subtilis var. nicer (ATCC 9372) spores. These provided data for calculating individual D-values. A D-value is the time required to reduce the microbial population by 1 log. A D-value is generally accepted as the time required for disinfection. Results show that Minncare® Cold Sterilant exhibited a 6 D-value of 36 minutes, compared to 11 hours for formaldehyde, 7 hours for bleach, and 1 to 25 hours for hydrogen peroxide.
•Technical Report: A Superior Biocide For Disinfecting Reverse Osmosis Systems
•Technical Report: A Superior Biocide For Disinfecting Reverse Osmosis Systems
In an effort to determine the effectiveness of Minncare® as a sterilant compared to biocides traditionally recommended for use on reverse osmosis (RO) membranes and their associated water distribution systems, Minncare® Cold Sterilant, formaldehyde, bleach and hydrogen peroxide were tested for efficacy by an independent testing laboratory. The concentrations chosen for the test were those normally recommended for cleaning and sanitizing RO membranes and water systems. Survival curves were generated for each biocide against Bacillus subtilis var. nicer (ATCC 9372) spores. These provided data for calculating individual D-values. A D-value is the time required to reduce the microbial population by 1 log. A D-value is generally accepted as the time required for disinfection. Results show that Minncare® Cold Sterilant exhibited a 6 D-value of 36 minutes, compared to 11 hours for formaldehyde, 7 hours for bleach, and 1 to 25 hours for hydrogen peroxide.
Click Here To Download:
•Technical Report: A Superior Biocide For Disinfecting Reverse Osmosis Systems
