Difference between revisions of "Chemical disinfection / Free chlorine"

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[[Image:free chlorine.jpg|thumb|right|300px|Free chlorine molecule.]]
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[[Image:free chlorine.jpg|thumb|right|200px|Free chlorine molecule.]]
 
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Free chlorine does the hard work of killing bacteria and oxidizing contaminants. When you add chlorine to water, you are actually adding free chlorine. When the free chlorine combines with contaminants, it becomes combined chlorine, or chloramines. In water, this form of chlorine has very little sanitizing ability, and no oxidizing ability. Total chlorine is just the sum of both combined chlorine and free chlorine.
 
Free chlorine does the hard work of killing bacteria and oxidizing contaminants. When you add chlorine to water, you are actually adding free chlorine. When the free chlorine combines with contaminants, it becomes combined chlorine, or chloramines. In water, this form of chlorine has very little sanitizing ability, and no oxidizing ability. Total chlorine is just the sum of both combined chlorine and free chlorine.
  
 
Chlorine is a versatile and low-cost disinfectant appropriate for any size water system, whether it serves chlorine can also be used for treating water in individual households. Specially-packaged chlorine bleach can disinfect household water for less than US$ 4/year per family.
 
Chlorine is a versatile and low-cost disinfectant appropriate for any size water system, whether it serves chlorine can also be used for treating water in individual households. Specially-packaged chlorine bleach can disinfect household water for less than US$ 4/year per family.
  
[[File:free chlorine chart.jpg|center|400px]]
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[[File:free chlorine chart.jpg|none|500px]]
  
==Manuals, videos, and links==
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===Manuals, videos and links===
*[http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CEoQFjAA&url=http%3A%2F%2Fwww.cdc.gov%2Fsafewater%2Fpublications_pages%2Fchlorineresidual.pdf&ei=NPS7T_CFB4SIiAKa8YXZDQ&usg=AFQjCNH--Yv-fW48hdJn4hOiyHCIy8bh_w&sig2=_1kmqCPh312qW3BNYAL0gw Chlorine Residual Testing Fact Sheet.] CDC SWS Project.
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*[http://www.cdc.gov/safewater/publications_pages/chlorineresidual.pdf Chlorine Residual Testing Fact Sheet.] CDC SWS Project.
  
==Acknowledgements==
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===Acknowledgements===
* [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CFoQFjAD&url=http%3A%2F%2Fwww.uvm.edu%2F~bwilcke%2Freiff.pdf&ei=Lh28T5nGEaSSiQK1h7H7DQ&usg=AFQjCNEWkoyuC5pBF351pbYoWehvZfL5BA&sig2=5RpiISnBfz95WGoLlRJRoQ Drinking Water Chlorination.] World Chlorine Council, 2008.
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* [http://www.uvm.edu/~bwilcke/reiff.pdf Drinking Water Chlorination.] World Chlorine Council, 2008.

Latest revision as of 02:58, 3 October 2013

Free chlor icon.png
Free chlorine molecule.

Free chlorine does the hard work of killing bacteria and oxidizing contaminants. When you add chlorine to water, you are actually adding free chlorine. When the free chlorine combines with contaminants, it becomes combined chlorine, or chloramines. In water, this form of chlorine has very little sanitizing ability, and no oxidizing ability. Total chlorine is just the sum of both combined chlorine and free chlorine.

Chlorine is a versatile and low-cost disinfectant appropriate for any size water system, whether it serves chlorine can also be used for treating water in individual households. Specially-packaged chlorine bleach can disinfect household water for less than US$ 4/year per family.

Free chlorine chart.jpg

Manuals, videos and links

Acknowledgements