E10_CEE_B_Lec10a - 2 2 cm mW L r P Area Outside Power I r r...

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Water Disinfection • chemical – chlorine – chloramines – chlorine dioxide – ozone – high pH • physical – UV light – membrane filtration
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UV Disinfection www.sglux.de t I N N 0 ln
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cleanwateroxford.org www.trojanuv.com
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UV Disinfection halmapr.com uvaquastar.com t I N N 0 ln
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UV Disinfection Cohn, Alicia. The UV-Tube as an appropriate water technology disinfection technology. M.Sc. project, Energy and Resources Group, UC Berkeley, 2002 t I N N 0 ln
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If no light absorption but increasing the area: Light Intensity:
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Unformatted text preview: 2 2 cm mW L r P Area Outside Power I r r I r I ) ( r r r d I I(r) Light absorption along a straight path: z I 1 I 2 z I I exp 1 2 L Combining absorption and area change: exp ) ( r r r r I r I Average Intensity exp ) ( r r r r I r I r r r d I I(r) 15 20 25 30 1.5 1.6 1.7 1.8 1.9 2 r (cm) I (mW/cm 2 ) Flow patterns www.trojanuv.com...
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This note was uploaded on 02/09/2010 for the course ENGIN 10 taught by Professor Johnson during the Fall '08 term at University of California, Berkeley.

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E10_CEE_B_Lec10a - 2 2 cm mW L r P Area Outside Power I r r...

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