en>KoenDelaere: added See Also with links

2014-07-18T15:49:09Z

added See Also with links

129.215.75.205 at 12:14, 10 December 2012

2012-12-10T12:14:17Z

← Older revision		Revision as of 14:14, 10 December 2012
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	My name is Domenic and I am studying Athletics and Physical Education and Mathematics at Fitzbek / Germany. <br>xunjie ブティックジェイドパビリオンが輝く：深セン飛から同社は、		'''CT Values''' are an important part of calculating [[disinfectant]] dosage for the [[Water chlorination\|chlorination]] of [[drinking water]]. A CT value is the product of the concentration of a disinfectant (e.g. free chlorine) and the contact time with the water being disinfected. It is typically expressed in units of mg-min/L.
	~~中国北部の靴産業基地の歴史の中で重要なものとして、~~
	~~フランチャイズの友人を回避するためのサービスのすべての側面では、~~ [~~http://alpha-printing.com/users/bottega.html �ܥåƥ��ͥ� �Lؔ�� ǥ��`��~~] 心からご到着を楽しみにしています！スネークアイズミミ店北京西城はスネークアイズミミをレンダリング - ハイエンドのファッション衣類ブランドに焦点を当て、
	~~リースウィザースプーンのモズレー部族をハリウッドブロンドの女の子を見下ろすMOSLEY部族パイロット。~~
	オレンジと白のコントラストカラーの効果をウインドブレーカー偉大な気質でヨーヨーのようなものです！シフォンドレスシフォンドレス中空女性が簡単に柔らかく、 [~~http://www.humfm.com/contest/images/nike.html �ʥ�� ˥�~~] ~~10月2日に報告された日本の「朝日新聞」によると、~~
	~~タイムリーなファッションセンスで、~~
	~~ブルガリアメジスト、~~[~~http://www~~.~~kalamazoooptometry~~.~~com/mediac/p/r/jimmychoo/ ��ߩ`��奦 ؔ�� ] 適用範囲は非常に限られ、~~
	~~スタイリッシュなあなたの足はすぐに長さをたくさん表示されるようにするだけでなく、~~
	~~満足の男たちが重んじ専門時計工芸の他にも、~~
	~~より多くの情報の普及のために他のメディアで再現されるこのような物品は、 [http://www~~.~~kalamazoooptometry~~.~~com~~/~~img/gagashop~~.~~html ��ߥ<br><br>�rӋ �˚�]~~

	~~Feel free~~ to ~~surf~~ to ~~my web site~~: [http://~~aavec~~.~~com~~/~~rayban~~.~~html レイバンメガネレディース~~]		The goal of disinfection is the inactivation of microorganisms. This depends on: the microorganism, the disinfectant being used, the concentration of the disinfectant, the contact time, and the temperature and [[pH]] of the water.<ref>{{cite web\|last=Pine\|first=Rob\|title=Everything You Ever Wanted to Know About CT (and then some)\|url=http://www.nmenv.state.nm.us/dwb/whats_new/documents/CT.pdf\|publisher=New Mexico Environment Department\|accessdate=20 October 2013\|coauthors=Joe Savage}}</ref>

			==Kinetics==
			The disinfection kinetics are conventionally calculated via the Chick-Watson model, named for the work of [[Harriette Chick]]<ref>{{cite journal\|last=Chick\|first=Harriette\|title=An Investigation of the Laws of Disinfection\|journal=The Journal of Hygiene\|year=1908\|month=January\|volume=8\|issue=1\|pages=92-158\|url=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2167134/pdf/jhyg00376-0104.pdf\|accessdate=20 October 2013}}</ref> and [[Harold Watson\|H.E. Watson]].<ref>{{cite journal\|last=Watson\|first=Herbert Edmeston\|title=A Note on the Variation of the Rate of Disinfection with Change in the Concentration of the Disinfectant\|journal=The Journal of Hygiene\|year=1908\|volume=8\|page=536\|url=http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2167149/pdf/jhyg00379-0093.pdf\|accessdate=20 October 2013}}</ref> This model is expressed by the following equation:<ref name=autogenerated2005>{{cite book\|last=MWH\|title=Water Treatment: Principles And Design\|year=2005\|publisher=John Wiley & Sons\|location=Hoboken, NJ\|isbn=0471110183\|edition=2}}</ref>

			: <math> \ln(\frac{N}{N_0})=\Lambda_{CW} C^n t \!</math>

			Where:
			* <math> (\frac{N}{N_0}) \!</math> is the survival ratio for the microorganisms being killed
			* <math> \Lambda_{CW} \!</math> is the Chick-Watson coefficient of specific lethality
			* <math> C \!</math> is the concentration of the disinfectant (typically in mg/L)
			* <math> n \!</math> is the coefficient of dilution, frequently assumed to be 1<ref name="autogenerated2005"/>
			* <math> t \!</math> is the contact time (typically in minutes or seconds)

			The survival ratio is commonly expressed as a inactivation ratio (in %) or as the number of reductions in the order of magnitude of the microorganism concentration. For example, a situation where N<sub>0</sub>=10<sup>7</sup> [[Colony-forming unit\|CFU]]/L and N=10<sup>4</sup> CFU/L would be reported as a 99.9% inactivation or "3-log<sub>10</sub>" removal.

			In water treatment practice, tables of the product C×t are used to calculate disinfection dosages. These tables express the required CT values to achieve a desired removal of microorganisms of interest in drinking water (e.g. [[Giardia lamblia]] cysts) for a given disinfectant under constant temperature and pH conditions. A portion of such a table is reproduced below.

			==Example CT Table==
			CT Values for the Inactivation of Giardia Cysts by Free Chlorine at 5 °C and pH ≈ 7.0:<ref>{{cite book\|last=Office of Drinking Water\|title=Guidance Manual for Compliance with the Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources\|year=1991\|publisher=United States Environmental Protection Agency\|url=http://www.epa.gov/safewater/mdbp/guidsws.pdf\|quote=Table E-2}}</ref>

			{\| class="wikitable"
			\|-
			! ''Chlorine Concentration (mg/L)''
			! 1 log inactivation
			! 2 log inactivation
			! 3 log inactivation
			\|-
			\| ''0.6''
			\| 48
			\| 95
			\| 143
			\|-
			\| ''1.2''
			\| 51
			\| 101
			\| 152
			\|-
			\| ''1.8''
			\| 54
			\| 108
			\| 162
			\|-
			\| ''2.4''
			\| 57
			\| 115
			\| 172
			\|}

			Full tables are much larger than this example and should be obtained from the regulatory agency for a particular jurisdiction.

			==See also==
			* [[Water chlorination\|Chlorination]]
			* [[Disinfectant]]

			==References==
			{{reflist}}

			==External links==
			* {{cite book\|last=Earth Tech, Inc.\|title=Chlorine and Alternative Disinfectants Guidance Manual\|year=2005\|publisher=Manitoba Water Stewardship\|location=Manitoba\|url=http://www.gov.mb.ca/waterstewardship/odw/reg-info/approvals/odw_chlorine_and_alternative_disinfectants.pdf}}

			[[Category:Water treatment]]
			[[Category:Chlorine]]
			[[Category:Public health]]

en>Life of Riley: Removed "It should be noted that" in accordance with WP:NOTED.

2012-07-20T01:32:26Z

Removed "It should be noted that" in accordance with WP:NOTED.

New page

My name is Domenic and I am studying Athletics and Physical Education and Mathematics at Fitzbek / Germany. <br>xunjie ブティックジェイドパビリオンが輝く：深セン飛から同社は、
中国北部の靴産業基地の歴史の中で重要なものとして、
フランチャイズの友人を回避するためのサービスのすべての側面では、 [http://alpha-printing.com/users/bottega.html �ܥåƥ��ͥ� �Lؔ�� ǥ��`��] 心からご到着を楽しみにしています！スネークアイズミミ店北京西城はスネークアイズミミをレンダリング - ハイエンドのファッション衣類ブランドに焦点を当て、
リースウィザースプーンのモズレー部族をハリウッドブロンドの女の子を見下ろすMOSLEY部族パイロット。
オレンジと白のコントラストカラーの効果をウインドブレーカー偉大な気質でヨーヨーのようなものです！シフォンドレスシフォンドレス中空女性が簡単に柔らかく、 [http://www.humfm.com/contest/images/nike.html �ʥ�� ˥�] 10月2日に報告された日本の「朝日新聞」によると、
タイムリーなファッションセンスで、
ブルガリアメジスト、[http://www.kalamazoooptometry.com/mediac/p/r/jimmychoo/ ��ߩ`��奦 ؔ�� ] 適用範囲は非常に限られ、
スタイリッシュなあなたの足はすぐに長さをたくさん表示されるようにするだけでなく、
満足の男たちが重んじ専門時計工芸の他にも、
より多くの情報の普及のために他のメディアで再現されるこのような物品は、 [http://www.kalamazoooptometry.com/img/gagashop.html ��ߥ<br><br>�rӋ �˚�]

Feel free to surf to my web site: [http://aavec.com/rayban.html レイバンメガネレディース]

Discrete Chebyshev transform - Revision history

en>KoenDelaere: added See Also with links

129.215.75.205 at 12:14, 10 December 2012

en>Life of Riley: Removed "It should be noted that" in accordance with WP:NOTED.