Talk:Water chlorination

Chemical equation
chlorination of drinking water: chemical equation

the article could do with explanation of free chlorine Turner chris1 (talk) 20:47, 27 November 2012 (UTC)

Why effective??
this page does not explain why chlorine is effective against micro-organisms —Preceding unsigned comment added by 121.7.5.112 (talk) 14:04, 18 October 2007 (UTC)

Misleading
It is improper to use the term "water purification" in this context. Chlorine does not purify water, it disinfects it. In fact, all impurities are still there, some of them chemically altered into something worse, such as THM and HAA. Likewise, the chlorination of treated sewage is effectively banned in many countries, for example in Canada, because it ultimately leads to the discharge of THM and others as persistent pollutants into surface waters. phom 2009-07-31 20:26 UTC —Preceding unsigned comment added by 24.77.11.70 (talk)

Dr. Strangelove
chlorination of drinking water is a major plot device in this movie --130.212.160.203 08:16, 4 December 2006 (UTC)


 * I think they were actually talking about fluoridation, which is different. Bweinber 19:58, 27 January 2007 (UTC)

gold chloride
doesn't this type of chlorination belong under the halogenation article? —Preceding unsigned comment added by 66.153.117.118 (talk) 22:34, 10 November 2007 (UTC)


 * Removed and implemented into halogenation. Freefighter (talk) 13:47, 19 January 2009 (UTC)

Presence of chloroform in public water
"...chloroform is produced from organic impurities in the water via the haloform reaction. (Many of these organic impurities are naturally occurring, such as humic substances.) The presence of chloroform in public water is of concern for water treatment plants and environmental officers, because chloroform is carcinogenic."

Retreived January 18 2009, from

Suggest implementation into Article: Chlorination. Freefighter (talk) 03:50, 19 January 2009 (UTC)

Amend title to "Chlorination (water treatment)"
Would this be a more appropriate title? Freefighter (talk) 13:13, 19 January 2009 (UTC)

No. We only append titles where there is a chance for confusion with something else, such as Moon (film) as opposed to Moon. As far as I know, there is no other topic titled Chlorination, and if so, this topic is more important. D O N D E groovily  Talk to me  06:05, 19 February 2011 (UTC)

Chlorination is commonly used in swimming pools, water for food processing (eg to wash produce; in meatpacking), cooling-water systems, wastewater treatment, etc. These waters are not intended for drinking. Maybe a broader article could be written. However, there's a real advantage to keeping this article focused on drinking water. Maybe we should add a brief reference to chlorination of water for uses other than drinking. Oaklandguy (talk) 19:09, 5 March 2014 (UTC)

Section on filtration to remove chlorine?
Could someone start section on the removal of chlorine from the water before drinking/bathing using a chlorine filter? —Preceding unsigned comment added by 75.92.143.245 (talk) 10:03, 13 January 2010 (UTC)

Chlorine cannot be simply removed, in the best case somewhat reduced, for example by carbon filters, or vitamine C. That is why the word "removal" is impropiate. Propiate is "reduction". — Preceding unsigned comment added by 189.4.122.78 (talk) 17:52, 13 September 2014 (UTC) --189.4.122.78 (talk) 18:02, 13 September 2014 (UTC)

Very US centric article
Many countries (e.g. Switzerland, Austria etc.) in Europe use ozone rather than chlorine for water treatment. The article, however, only speaks of some irrelevant municipalities in the US. Strange. 77.117.54.210 (talk) 19:27, 6 August 2010 (UTC)

Rideal quote
I have corrected the Rideal historical reference (page number & content) ... However, I have no idea what it means for someone to suggest "disinfecting" water in 1800, some 60 years before the Germ Theory of Disease was seriously proposed...??? Any ideas???? 140.139.35.250 (talk) 14:21, 24 September 2010 (UTC)

I removed the Rideal quote. Rideal's book has little to do with disinfection of water. The specific page referenced (p. 57) deals with fumigation of rooms where diseased individuals resided. In 1800 when the miasma theory of disease was dominant, "disinfection" referred to adding substances to the air to mask or destroy the odor--read the book's Introduction (pp. 1-4) for a detailed discussion of what he covers in his book. Thus, burning sulfur was thought to purify the air of a sickroom. Chlorine is not mentioned on any page in Rideal's book as a method for disinfecting water (see pp. 247-250 where he discusses heat sterilization of water; be careful to not confuse Rideal's use of "chlorine" when he is referring to the chloride ion--a common problem in old sanitary literature). Interestingly, he does mention using hydrogen peroxide at very high concentrations to "sterilize" water (p. 85). Google Books has a complete copy of Rideal's book: http://books.google.com/books?id=HDpDAAAAIAAJ&pg=PA57&dq=%22Disinfection+and+Disinfectants%22+AND+1895+AND+Cruikshank&hl=en&ei=w7GcTNKPHcX6lweRzLn2CQ&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCkQ6AEwAA#v=onepage&q&f=true  Drinkingwaterdoc (talk) 17:14, 5 June 2012 (UTC)

The adverse effects of chlorination
Why is never pointed out that chlorine destroys the skin and removes the hair. I know that nobody says that, but it is a fact which I observe again and again, personally when coming in contact to chlorine, and statistically, by seeing people in countries with chlorination. I come originally from a country without chlorination, and I know, how much living quality is lost by being provided with chlorinated water instead of clean water. Every textbook in anorganic chemistry tells you that chlorine is a poisining gas. But when it comes to water treatment, voala, a miracle occurs, and chlorine "does not harm at all!". Let us not lie, but list facts. — Preceding unsigned comment added by 189.4.122.78 (talk) 12:31, 13 September 2014 (UTC) --189.4.122.78 (talk) 18:02, 13 September 2014 (UTC)
 * Well, reliable sources are always welcome. When it comes to effects on human health, Wikipedia typically insists that the sources be for reviews and books (see WP:SECONDARY, per the rule WP:MEDRS. --Smokefoot (talk) 18:19, 13 September 2014 (UTC)

External links modified
Hello fellow Wikipedians,

I have just added archive links to 1 one external link on Water chlorination. Please take a moment to review my edit. If necessary, add after the link to keep me from modifying it. Alternatively, you can add to keep me off the page altogether. I made the following changes:
 * Added archive http://web.archive.org/web/20080528142928/http://www.enceechlor.com/download/Drinking%20Water%20Chlorination%20-%20A%20Review%20of%20Disinfection%20Practices.pdf to http://www.enceechlor.com/download/Drinking%20Water%20Chlorination%20-%20A%20Review%20of%20Disinfection%20Practices.pdf

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Cheers.—cyberbot II  Talk to my owner :Online 13:59, 26 February 2016 (UTC)